Lockwood Cortex Digital Lockset - CTX5782 with 5782 Narrow Mortice Lock, 30mm Backset, Satin Chrome, Key Override
At A Glance
At A Glance
DISPATCHShips in 4 Business Days
SPECIAL ORDERNon-Returnable
PIN Code 
RFID Card 
Mechanical Key 
BluetoothNot Available
Wi-FiNot Available
FingerprintNot Available
The Lockwood Cortex CTX5782SC/5782 is a commercial grade standalone digital lockset combining a capacitive touchscreen keypad and integrated RFID card reader with the Lockwood 5782 narrow stile mortice lock. It delivers PIN code and card-based electronic access control without requiring network infrastructure, wiring, or a power supply - operating entirely on four AA batteries.
The CTX5782 is the narrow stile variant in the Cortex range, designed specifically for aluminium framed doors and other narrow stile door types where a standard 60mm backset cannot be accommodated. It uses a 30mm backset 5782 narrow mortice lock and includes a key override cylinder. It also enables two exclusive mortice-only features: Code Lockout (using the cylinder to electronically lock out all card and PIN users) and Latch Holdback (using the cylinder to hold the latch back for high-traffic periods). Both functions require the VCam accessory.
Unlike the CTX530 and CTX3772, the CTX5782 is not fire rated. Free egress from the inside is always available regardless of access mode or programming state.
Estimated Warehouse Dispatch
Usually ships in 4 business days
Usually ships in 4 business days
Special Order Item - Non-Returnable
This product is a special order item and is not returnable. Please confirm door type, stile width, and backset suitability before ordering.
This product is a special order item and is not returnable. Please confirm door type, stile width, and backset suitability before ordering.
Not Fire Rated
The CTX5782 is not fire rated. If a fire-rated digital lockset is required, consider the CTX530 or CTX3772 variants, both tested to AS1905.1.
The CTX5782 is not fire rated. If a fire-rated digital lockset is required, consider the CTX530 or CTX3772 variants, both tested to AS1905.1.
Disability Discrimination Act (DDA) Compliance
Lever 77A is compliant with AS1428.1-2009. Lever compliance relates to handle design only and does not imply full building compliance. See our DDA and accessibility guide.
Lever 77A is compliant with AS1428.1-2009. Lever compliance relates to handle design only and does not imply full building compliance. See our DDA and accessibility guide.
Access Methods
New to these methods? Our access methods guide explains PIN / keypad entry and RFID card credentials.
Layout and Features
Exterior view - capacitive touchscreen keypad, integrated RFID card reader, key override cylinder, and Lever 77A.
Interior view - battery compartment (4 x AA) and free egress lever. No code required to exit from inside.
Key Features
- Standalone commercial grade digital lockset with 5782 narrow stile mortice lock - designed for aluminium framed and narrow stile doors where 60mm backset is not suitable.
- 30mm backset - suits narrow stile aluminium doors and other specialised door types.
- Key override cylinder included - provides mechanical backup access independent of battery or electronic state.
- Code Lockout function (mortice-only) - use the key cylinder to electronically lock out all card and PIN users. Requires VCam accessory.
- Latch Holdback function (mortice-only) - use the key cylinder to activate holdback for high-traffic periods. Requires VCam accessory.
- Capacitive touchscreen keypad with no moving parts - buttons cannot wear to reveal a frequently used PIN.
- Ultra-bright LED backlighting beneath each button - suitable for high and low light conditions.
- Audible tone feedback from the keypad, with the RFID card reader positioned directly above the keypad.
- Integrated RFID card reader compatible with iClass and Mifare card formats - covers approximately 90% of existing access control card systems worldwide.
- Up to 20 PIN code users and 40 RFID card users.
- 2 access cards included in the box. Up to 40 cards total can be enrolled - additional cards available separately in Satin Chrome or Red 5-packs.
- Dual Security Credential mode - requires both a card and a PIN from two separate users to unlock.
- Easy Mode and Advanced Mode programming - basic single-code setup can be completed in under 15 seconds.
- Visitor Code - a PIN programmed for a specific date period that expires automatically.
- One Time PIN - a single-use code that expires immediately after use.
- Passage Mode and Timed Passage Mode - toggle between locked and free passage, or schedule unlock/lock periods.
- Time and Date function with full calendar support including leap year.
- Cryptic Code function - enter random digits before or after the real PIN without affecting authentication.
- Delayed Unlock State - extra time to open the door after authentication. Suitable for elderly or disabled users.
- Smart Battery Check - accurately reports battery level and ignores false battery recovery readings.
- Battery Emergency PINS - allows entry when batteries are critically low.
- Powered by ARM Cortex-M3 processor - 20% lower standby power and 50% lower operational power than comparable digital locks.
- Up to 40,000 operations per battery set using card entry. Up to 18,000 using keypad entry.
- Free egress from inside at all times - no code or card required to exit.
- Severe vandal tested - SL8 (Security) and DL8 (Durability) rating per AS4145.2:1993.
- Lever 77A - DDA compliant per AS1428.1-2009.
- Not fire rated - do not specify for fire door assemblies.
Heavy Duty - Built for Commercial Traffic
The CTX5782 is severe vandal tested and rated SL8 for security and DL8 for durability under AS4145.2:1993. The capacitive keypad has no moving buttons to wear out, and one set of four AA batteries covers up to 40,000 card operations. The 5782 lock body comes from Lockwood's Selector 3780 series, rated S7/S8 for physical security, D8 for durability and C6 for corrosion resistance under AS 4145.2-2008. For what separates commercial-grade hardware from light-duty locks, see our guide to heavy duty commercial locks.
The CTX5782 is severe vandal tested and rated SL8 for security and DL8 for durability under AS4145.2:1993. The capacitive keypad has no moving buttons to wear out, and one set of four AA batteries covers up to 40,000 card operations. The 5782 lock body comes from Lockwood's Selector 3780 series, rated S7/S8 for physical security, D8 for durability and C6 for corrosion resistance under AS 4145.2-2008. For what separates commercial-grade hardware from light-duty locks, see our guide to heavy duty commercial locks.
Lockwood Cortex - Model Range
All three models share the same electronic unit, access methods, programming features, lever (77A), finish (Satin Chrome), body material (Zinc Alloy), and door thickness range (35-48mm). Bold row indicates this product. Code Lockout / Privacy and Latch Holdback are mortice-only functions operated from the key cylinder, so they are available on the CTX3772 and CTX5782 but not the CTX530.
Accessories and Spares
Browse more mortice locks for smart locks and RFID fobs, tags and cards.
Full Specifications
Dimensions - CTX5782 Lockset
Manufacturer dimensional drawing for the Lockwood Cortex CTX5782 showing overall lockset height (298mm), width (49mm), and depth (52mm exterior and interior panels). Note the greater depth compared to the CTX530 and CTX3772 - this is due to the narrow stile mortice lock body. The same drawing is on page 8 of the Lockwood Electronic Access Control Catalogue.
About the Lockwood 5782 Narrow Stile Mortice Lock
The Lockwood 5782 is a narrow stile primary escape mortice lock from the Selector 3780 Series, engineered for aluminium framed and other narrow stile doors where a standard 60mm backset cannot be accommodated. It features a 30mm backset, a 15mm stainless steel deadlatching latch bolt, escape function with red/green indicator, and anti-lockout and holdback capabilities. All lock settings are adjustable from under the faceplate. Faceplate dimensions: 260mm x 25mm x 2mm.
The 5782 mortice lock body is available separately for installers who need to source the lock independently of the Cortex escutcheon unit.
Lockwood specifies a minimum internal door depth of 47mm for the 5782 body, so measure the cavity inside the stile as well as the stile width before ordering. Across the Selector 3780 series Lockwood rates the lock body S7/S8 for physical security, D8 for durability and C6 for corrosion resistance under AS 4145.2-2008. The 5782 exploded parts are shown on page 35 of the 3700 Series service manual.
Manufacturer dimensional drawing for the Lockwood 5782 Narrow Stile Mortice Lock. Backset: 30mm. Faceplate: 260mm x 25mm x 2mm. Latch bolt: 15mm stainless steel, deadlatching. Accepts standard 570 oval cylinders.
View the Lockwood 5782 Narrow Mortice Lock (sold separately) ›
What's in the Box
- Lockwood Cortex CTX5782 electronic lockset (exterior and interior panels)
- Lockwood 5782 narrow stile mortice lock - 30mm backset
- Key override cylinder with keys
- 2 x Cortex access cards
- Spindle components (select to suit door thickness)
- Mounting hardware and fixings
- Installation instructions
Batteries not included - 4 x AA Alkaline batteries required. Additional cards available separately in packs of 5: Satin Chrome or Red. The VCam (Lockwood 3700 Series V Cylinder Cam) is required for Code Lockout and Latch Holdback functions and is sold separately.
Suitable Uses
- Aluminium framed commercial doors where a 30mm backset is required and a 60mm backset cannot be accommodated
- Narrow stile doors in office, retail, and hospitality environments
- Doors where key override is required for building management or emergency services access
- High-security applications requiring Dual Security Credential (card and PIN from two users)
- Sites integrating with an existing iClass or Mifare card-based access system
- Applications requiring time-based access control without network infrastructure
- Doors requiring DDA-compliant lever hardware
Note: The CTX5782 is not suitable for fire-rated door assemblies. If a fire-rated digital lockset is required, select the CTX530 or CTX3772. Not sure which door type you have? See our door-type compatibility guide and stile-width measuring guide.
Available Finish Options
Satin Chrome
(This Product)
STK CTX5782SC/5782
Finish selection does not affect functionality, compliance, or performance.
Installation Tips
- A 28mm hole saw is required for door preparation. Use the supplied CTX5782 door preparation template to mark drilling positions accurately before cutting.
- Select the correct spindle length to suit the door thickness. See the spindle selection diagram below - spindle length is a common install mistake.
- The 5782 mortice lock body is deeper than the 3772 - confirm clearance within the door stile before installation, particularly on narrow aluminium profiles.
- Confirm the door stile width and internal clearance can accommodate the 5782 lock body before ordering. Our backset and backset measurement guides can help. This is a special order item and cannot be returned.
- For Code Lockout and Latch Holdback functions, the VCam must be fitted. These functions are not available without the VCam.
- Do not specify this lock for fire-rated doors. The CTX5782 has not been fire rated.
- Initial setup can be completed in under 15 seconds for a basic single-code configuration.
- Print the door preparation template at 100% (actual size). It carries door-edge lines for both 30mm and 38mm backsets - work from the 30mm line for this lock.
- The 5782 body needs a minimum internal door depth of 47mm. Lockwood also recommends a door clearance of at least 3mm and advises against gaps over 5mm.
- Not confident preparing a narrow aluminium stile? Our advice and installation team can help, and our DIY guide explains when a professional install makes sense.
Spindle selection diagram for the CTX5782 mortice variant. Three spindle lengths are available to suit door thicknesses across the 35-48mm range. Select the correct spindle before installation.
Frequently Asked Questions
Why would I choose the CTX5782 over the CTX3772?
The CTX5782 is specifically designed for narrow stile door types - most commonly aluminium framed commercial doors - where the door stile is too narrow to accommodate a 60mm backset mortice lock. If your door can accept a 60mm backset, the CTX3772 is the preferred choice as it is also fire rated. Confirm your door type and backset requirement before ordering, as the CTX5782 is a special order item and cannot be returned.
The CTX5782 is specifically designed for narrow stile door types - most commonly aluminium framed commercial doors - where the door stile is too narrow to accommodate a 60mm backset mortice lock. If your door can accept a 60mm backset, the CTX3772 is the preferred choice as it is also fire rated. Confirm your door type and backset requirement before ordering, as the CTX5782 is a special order item and cannot be returned.
Is the CTX5782 suitable for fire doors?
No. The CTX5782 is not fire rated and must not be specified for fire-rated door assemblies. If a fire-rated Cortex digital lockset is required, select the CTX530 (530 tubular latch, no key override) or the CTX3772 (3772 mortice lock, key override) - both are fire rated up to 2 hours per AS1905.1-2005.
No. The CTX5782 is not fire rated and must not be specified for fire-rated door assemblies. If a fire-rated Cortex digital lockset is required, select the CTX530 (530 tubular latch, no key override) or the CTX3772 (3772 mortice lock, key override) - both are fire rated up to 2 hours per AS1905.1-2005.
What is the difference in depth between the CTX5782 and the other Cortex models?
The CTX5782 escutcheon panels are 52mm deep, compared to 32mm on the CTX530 and CTX3772. This greater depth is due to the 5782 narrow stile mortice lock body. Confirm that the door profile and any adjacent hardware can accommodate this depth before installation.
The CTX5782 escutcheon panels are 52mm deep, compared to 32mm on the CTX530 and CTX3772. This greater depth is due to the 5782 narrow stile mortice lock body. Confirm that the door profile and any adjacent hardware can accommodate this depth before installation.
What happens if the batteries run flat?
The Cortex includes a Battery Emergency PINS function that allows entry when batteries are critically low. The Smart Battery Check function provides accurate battery level reporting and ignores false battery recovery readings. The key override cylinder provides mechanical access independent of battery state as a final fallback.
The Cortex includes a Battery Emergency PINS function that allows entry when batteries are critically low. The Smart Battery Check function provides accurate battery level reporting and ignores false battery recovery readings. The key override cylinder provides mechanical access independent of battery state as a final fallback.
Can this lock work with our existing access cards?
The Cortex supports both iClass and Mifare card formats - covering approximately 90% of existing access control card systems used worldwide. If your site currently uses iClass or Mifare cards, those cards can be programmed into the Cortex with no effect on your existing system.
The Cortex supports both iClass and Mifare card formats - covering approximately 90% of existing access control card systems used worldwide. If your site currently uses iClass or Mifare cards, those cards can be programmed into the Cortex with no effect on your existing system.
Additional Information
Backset and Door Stile Confirmation is Critical:
The 30mm backset and narrow lock body of the 5782 are specifically engineered for aluminium framed doors. Before ordering, confirm that the door stile width, internal cavity dimensions, and any frame reinforcement can accommodate the lock body. This is a special order, non-returnable item - errors in specification cannot be corrected after ordering.
The 30mm backset and narrow lock body of the 5782 are specifically engineered for aluminium framed doors. Before ordering, confirm that the door stile width, internal cavity dimensions, and any frame reinforcement can accommodate the lock body. This is a special order, non-returnable item - errors in specification cannot be corrected after ordering.
VCam Accessory:
The VCam is a small accessory fitted under the mortice faceplate that enables the Code Lockout and Latch Holdback cylinder-operated functions. It is the Lockwood 3700 Series V Cylinder Cam, is not included in the box, and must be purchased and installed separately if these functions are required. Without the VCam, the CTX5782 operates as a standard electronic lockset with key override only.
The VCam is a small accessory fitted under the mortice faceplate that enables the Code Lockout and Latch Holdback cylinder-operated functions. It is the Lockwood 3700 Series V Cylinder Cam, is not included in the box, and must be purchased and installed separately if these functions are required. Without the VCam, the CTX5782 operates as a standard electronic lockset with key override only.
Capacitive Touchscreen Security:
The capacitive touch buttons have no moving parts and cannot wear to reveal a frequently entered PIN. The Cryptic Code function allows random digits to be entered before or after the real PIN without affecting authentication, preventing shoulder-surfing attacks.
The capacitive touch buttons have no moving parts and cannot wear to reveal a frequently entered PIN. The Cryptic Code function allows random digits to be entered before or after the real PIN without affecting authentication, preventing shoulder-surfing attacks.
Upgrade Path:
The CTX5782 can be upgraded to the DX5582 digital-mechanical keypad system if electronic features are no longer required or if the site transitions away from electronic access control.
The CTX5782 can be upgraded to the DX5582 digital-mechanical keypad system if electronic features are no longer required or if the site transitions away from electronic access control.
Australian Compliance:
The CTX5782 meets Australian Electrical Regulatory Compliance (RCM) and European Electric Compliance (CE). It is rated to Australian Lock Standard AS4145.2:1993 at Security Level SL8 and Durability Level DL8. For plain-English background, see our Australian standards guide and the Lockwood brand profile. For accessible-housing context, see our DDA smart locks guide.
The CTX5782 meets Australian Electrical Regulatory Compliance (RCM) and European Electric Compliance (CE). It is rated to Australian Lock Standard AS4145.2:1993 at Security Level SL8 and Durability Level DL8. For plain-English background, see our Australian standards guide and the Lockwood brand profile. For accessible-housing context, see our DDA smart locks guide.
Warranty
Lockwood Warranty (Australia)
Lockwood products bought new in Australia through authorised channels are covered against defects in materials and workmanship: 25 years on mechanical components, 3 years on electrical and electronic parts (PADDE and electric mortice locks 5 years; batteries excluded), 12 months on keys, and finish cover that varies by finish type (up to 25 years on Everbrass). Proof of purchase required for all claims.
Lockwood products bought new in Australia through authorised channels are covered against defects in materials and workmanship: 25 years on mechanical components, 3 years on electrical and electronic parts (PADDE and electric mortice locks 5 years; batteries excluded), 12 months on keys, and finish cover that varies by finish type (up to 25 years on Everbrass). Proof of purchase required for all claims.
Excludes normal wear, misuse, improper installation or maintenance, unauthorised modification, and corrosion from coastal or corrosive environments.
This warranty operates in addition to your rights under the Australian Consumer Law.
Download PDF Resources
Lockwood Electronic Access Control Catalogue (PDF)
The Cortex range catalogue - CTX530, CTX3772 and CTX5782 product details, features and specifications, the CTX5782 dimensioned drawing (page 8) and lockset ordering and spare card codes (page 9).
The Cortex range catalogue - CTX530, CTX3772 and CTX5782 product details, features and specifications, the CTX5782 dimensioned drawing (page 8) and lockset ordering and spare card codes (page 9).
Lockwood Cortex Mortice Installation Instructions (PDF)
Illustrated fitting sequence for the Cortex mortice locksets - 28mm hole saw preparation, fitting the external and internal spindles and assembling the escutcheons.
Illustrated fitting sequence for the Cortex mortice locksets - 28mm hole saw preparation, fitting the external and internal spindles and assembling the escutcheons.
Lockwood Cortex CTX5782 Door Preparation Template (PDF)
Print-to-scale drilling and marking template for the CTX5782, with door-edge lines for both 30mm and 38mm backsets - print it at 100% (actual size).
Print-to-scale drilling and marking template for the CTX5782, with door-edge lines for both 30mm and 38mm backsets - print it at 100% (actual size).
Lockwood 25 Year Mechanical Warranty (PDF)
The full Lockwood warranty terms - 25 years mechanical, 3 years on electrical and electronic parts, 12 months on keys, and finish cover by finish type (Satin Chrome plating 10 years).
The full Lockwood warranty terms - 25 years mechanical, 3 years on electrical and electronic parts, 12 months on keys, and finish cover by finish type (Satin Chrome plating 10 years).
Lockwood Selector 3700 Series Mortice Locks Catalogue (PDF)
The Selector mortice platform the 5782 body belongs to - 3780 series ratings and door clearance (page 50), 5782 dimensions and minimum internal door depth (page 53) and 5782-RK rebate kits (page 76).
The Selector mortice platform the 5782 body belongs to - 3780 series ratings and door clearance (page 50), 5782 dimensions and minimum internal door depth (page 53) and 5782-RK rebate kits (page 76).
Lockwood 3700 Series Mortice Locks Service Manual (PDF)
Servicing and mounting for the Selector 3700 platform - 5782 exploded parts (page 35) and 5782 rebate door kit mounting (pages 80-82).
Servicing and mounting for the Selector 3700 platform - 5782 exploded parts (page 35) and 5782 rebate door kit mounting (pages 80-82).
Lockwood Cortex CTX5782 - FAQ, Fitting and Owner's Guide
Deeper answers on door fit, access, power, compliance and installation for the Lockwood Cortex CTX5782 narrow stile digital lockset. For general smart lock questions, see our Smart Lock FAQ and the full Smart Lock Buyer's Guide.
Fit and Door Suitability
What kind of door is the CTX5782 made for?
Narrow stile doors - most often aluminium framed commercial shopfront and office doors - where the stile is too narrow for a 60mm backset lock. The CTX5782 uses a 30mm backset 5782 mortice lock and suits doors 35-48mm thick. If your door can take a 60mm backset, the fire rated CTX3772 is usually the better choice. Browse other narrow stile and slim line locks or check your door with our stile width guide.
Narrow stile doors - most often aluminium framed commercial shopfront and office doors - where the stile is too narrow for a 60mm backset lock. The CTX5782 uses a 30mm backset 5782 mortice lock and suits doors 35-48mm thick. If your door can take a 60mm backset, the fire rated CTX3772 is usually the better choice. Browse other narrow stile and slim line locks or check your door with our stile width guide.
How much room does the 5782 lock body need inside the stile?
At least 47mm of internal door depth. Lockwood specifies a 30mm backset and a minimum internal door depth of 47mm for the 5782 body (5782 dimensions). Measure the cavity inside the stile, not just the face width, and allow for any frame reinforcement. Because the CTX5782 is a special order item and cannot be returned, confirm this before you order.
At least 47mm of internal door depth. Lockwood specifies a 30mm backset and a minimum internal door depth of 47mm for the 5782 body (5782 dimensions). Measure the cavity inside the stile, not just the face width, and allow for any frame reinforcement. Because the CTX5782 is a special order item and cannot be returned, confirm this before you order.
What door thickness does it suit?
35-48mm. The kit includes spindles in different lengths - pick the one that matches your door, because the wrong spindle length is one of the most common install mistakes. Our door thickness guide shows how to measure accurately.
35-48mm. The kit includes spindles in different lengths - pick the one that matches your door, because the wrong spindle length is one of the most common install mistakes. Our door thickness guide shows how to measure accurately.
Is the CTX5782 left or right handed?
It is reversible, so the same lockset suits left and right hand doors. If you are unsure which hand your door is, our door handing guide explains the Australian conventions.
It is reversible, so the same lockset suits left and right hand doors. If you are unsure which hand your door is, our door handing guide explains the Australian conventions.
What door clearance does the 5782 need?
Lockwood recommends a gap of at least 3mm between door and frame for its 3780 series lock bodies and advises against gaps over 5mm (3780 series guidance). A poorly aligned door is a common cause of latching trouble - see door misalignment in our troubleshooting chapter.
Lockwood recommends a gap of at least 3mm between door and frame for its 3780 series lock bodies and advises against gaps over 5mm (3780 series guidance). A poorly aligned door is a common cause of latching trouble - see door misalignment in our troubleshooting chapter.
Will it fit a rebated double door?
Lockwood makes 5782-RK rebate kits that let the 5782 body work on 13mm rebated timber doors, in clockwise and anticlockwise versions (rebate kits), with mounting steps in the 3700 Series service manual. Lockwood doesn't give Cortex fitting steps for rebated doors, so talk to our advice and installation team before ordering for a rebated pair.
Lockwood makes 5782-RK rebate kits that let the 5782 body work on 13mm rebated timber doors, in clockwise and anticlockwise versions (rebate kits), with mounting steps in the 3700 Series service manual. Lockwood doesn't give Cortex fitting steps for rebated doors, so talk to our advice and installation team before ordering for a rebated pair.
Access, Codes and Cards
How many users can the CTX5782 hold?
Up to 20 PIN code users and 40 RFID card users. Two cards come in the box, and more can be added from the Satin Chrome or Red spare card packs. Our access methods comparison explains where PIN and card access each work best.
Up to 20 PIN code users and 40 RFID card users. Two cards come in the box, and more can be added from the Satin Chrome or Red spare card packs. Our access methods comparison explains where PIN and card access each work best.
Which access cards work with the Cortex?
iClass and Mifare cards, which covers most existing access control card systems. Cards are read at close range (under 2cm). If your site already runs iClass or Mifare cards, they can be enrolled in the Cortex without affecting your existing system. More on card credentials in our RFID guide, or browse card and fob smart locks.
iClass and Mifare cards, which covers most existing access control card systems. Cards are read at close range (under 2cm). If your site already runs iClass or Mifare cards, they can be enrolled in the Cortex without affecting your existing system. More on card credentials in our RFID guide, or browse card and fob smart locks.
What is Dual Security Credential mode?
A high-security setting that needs both a card and a PIN from two separate users before the door unlocks. It suits doors where one person alone should not be able to open the lock.
A high-security setting that needs both a card and a PIN from two separate users before the door unlocks. It suits doors where one person alone should not be able to open the lock.
Can I give someone a temporary code?
Yes. A Visitor Code works only for the date period you set and then expires on its own, and a One Time PIN expires as soon as it is used. The Cortex keeps full calendar time and date, including leap years. See our PIN code guide.
Yes. A Visitor Code works only for the date period you set and then expires on its own, and a One Time PIN expires as soon as it is used. The Cortex keeps full calendar time and date, including leap years. See our PIN code guide.
Can someone work out my PIN from worn buttons?
No. The capacitive touch buttons have no moving parts, so they cannot wear to show a frequently used code. The Cryptic Code function also lets users enter random digits before or after their real PIN to stop onlookers learning it. More on how secure digital locks are.
No. The capacitive touch buttons have no moving parts, so they cannot wear to show a frequently used code. The Cryptic Code function also lets users enter random digits before or after their real PIN to stop onlookers learning it. More on how secure digital locks are.
How is the CTX5782 programmed?
At the lock itself, in Easy Mode or Advanced Mode. A basic single-code setup takes under 15 seconds, while Advanced Mode opens up the Visitor Code, One Time PIN, timed passage and Dual Security Credential settings.
At the lock itself, in Easy Mode or Advanced Mode. A basic single-code setup takes under 15 seconds, while Advanced Mode opens up the Visitor Code, One Time PIN, timed passage and Dual Security Credential settings.
Key Override, Code Lockout and Holdback
Does the CTX5782 have a key?
Yes. A key override cylinder and keys are included, giving mechanical access whatever the battery or electronic state. Our key override guide explains how it works, and you can browse more smart locks with a backup key.
Yes. A key override cylinder and keys are included, giving mechanical access whatever the battery or electronic state. Our key override guide explains how it works, and you can browse more smart locks with a backup key.
What is Code Lockout?
A mortice-only function that uses the key cylinder to lock out every card and PIN user at once - handy after hours or when a space needs to stay closed. Lockwood also calls it Code Lockout / Privacy. It needs the VCam fitted, and it is not available on the CTX530 because that model uses a tubular latch.
A mortice-only function that uses the key cylinder to lock out every card and PIN user at once - handy after hours or when a space needs to stay closed. Lockwood also calls it Code Lockout / Privacy. It needs the VCam fitted, and it is not available on the CTX530 because that model uses a tubular latch.
What is Latch Holdback and when should I use it?
Latch Holdback uses the key cylinder to hold the latch back so the door can be pushed open freely during busy periods. Like Code Lockout it is mortice-only and needs the VCam. Holdback must never be used on fire doors - see how holdback mode works and why it is not for fire doors.
Latch Holdback uses the key cylinder to hold the latch back so the door can be pushed open freely during busy periods. Like Code Lockout it is mortice-only and needs the VCam. Holdback must never be used on fire doors - see how holdback mode works and why it is not for fire doors.
What is the difference between Passage Mode and Latch Holdback?
Passage Mode is an electronic setting - you toggle the lock between locked and free passage, or schedule it with Timed Passage Mode. Latch Holdback is mechanical, set with the key cylinder and the VCam. Our passage mode vs holdback guide walks through when to use each.
Passage Mode is an electronic setting - you toggle the lock between locked and free passage, or schedule it with Timed Passage Mode. Latch Holdback is mechanical, set with the key cylinder and the VCam. Our passage mode vs holdback guide walks through when to use each.
Do I need the VCam?
Only if you want Code Lockout or Latch Holdback. The Lockwood 3700 Series V Cylinder Cam fits under the mortice faceplate and is sold separately. Without it, the CTX5782 works as a standard electronic lockset with key override.
Only if you want Code Lockout or Latch Holdback. The Lockwood 3700 Series V Cylinder Cam fits under the mortice faceplate and is sold separately. Without it, the CTX5782 works as a standard electronic lockset with key override.
Can people always get out from inside?
Yes. The interior lever gives free egress at all times - no code or card is needed to exit, whatever the programming or access mode. See why this matters on commercial exit paths.
Yes. The interior lever gives free egress at all times - no code or card is needed to exit, whatever the programming or access mode. See why this matters on commercial exit paths.
Power and Batteries
What batteries does it use and how long do they last?
Four AA alkaline batteries, which are not included. Lockwood rates a battery set at up to 40,000 operations with cards or up to 18,000 with the keypad. Real-world life depends on traffic - see our notes on battery life and the power and battery FAQ.
Four AA alkaline batteries, which are not included. Lockwood rates a battery set at up to 40,000 operations with cards or up to 18,000 with the keypad. Real-world life depends on traffic - see our notes on battery life and the power and battery FAQ.
What happens if the batteries go flat?
Smart Battery Check reports the battery level accurately, Battery Emergency PINs allow entry when the batteries are critically low, and the key override cylinder opens the door regardless. More in our guide to what to do when the battery dies.
Smart Battery Check reports the battery level accurately, Battery Emergency PINs allow entry when the batteries are critically low, and the key override cylinder opens the door regardless. More in our guide to what to do when the battery dies.
Does it need wiring, Wi-Fi or an app?
No. The Cortex is a standalone lock - no mains power, no wiring, no network and no app. Everything is programmed at the keypad. Our standalone vs connected locks section explains the difference.
No. The Cortex is a standalone lock - no mains power, no wiring, no network and no app. Everything is programmed at the keypad. Our standalone vs connected locks section explains the difference.
Standards, Fire and Compliance
Can the CTX5782 go on a fire door?
No. The CTX5782 is not fire rated and must not be fitted to a fire-rated door assembly. If you need a fire rated Cortex, choose the CTX530 or CTX3772, both tested to AS1905.1. Not sure if your door is a fire door? See how to identify a fire door, our fire door certification summary or browse fire door smart locks.
No. The CTX5782 is not fire rated and must not be fitted to a fire-rated door assembly. If you need a fire rated Cortex, choose the CTX530 or CTX3772, both tested to AS1905.1. Not sure if your door is a fire door? See how to identify a fire door, our fire door certification summary or browse fire door smart locks.
What security and durability ratings does it carry?
The lockset is rated SL8 for security and DL8 for durability under AS4145.2:1993, and is severe vandal tested. The 5782 lock body is part of the Selector 3780 series, rated S7/S8 security, D8 durability and C6 corrosion resistance under AS 4145.2-2008. For how ratings relate to real-world lifespan, see our cycle ratings explainer.
The lockset is rated SL8 for security and DL8 for durability under AS4145.2:1993, and is severe vandal tested. The 5782 lock body is part of the Selector 3780 series, rated S7/S8 security, D8 durability and C6 corrosion resistance under AS 4145.2-2008. For how ratings relate to real-world lifespan, see our cycle ratings explainer.
Is the CTX5782 DDA compliant?
The Lever 77A complies with AS1428.1-2009. That covers the handle design only, not the whole door installation. The Delayed Unlock State setting also gives elderly or disabled users extra time to open the door. See our DDA and accessibility chapter and DDA smart locks guide.
The Lever 77A complies with AS1428.1-2009. That covers the handle design only, not the whole door installation. The Delayed Unlock State setting also gives elderly or disabled users extra time to open the door. See our DDA and accessibility chapter and DDA smart locks guide.
Does it carry electrical approvals?
Yes - Australian electrical regulatory compliance (RCM) and European CE marking.
Yes - Australian electrical regulatory compliance (RCM) and European CE marking.
Is it suitable for a coastal site?
Take care. Lockwood's warranty excludes corrosion from coastal or corrosive environments, and Lockwood doesn't quote a salt spray figure for the Cortex escutcheons. The 5782 lock body carries a C6 corrosion rating under AS 4145.2-2008. For exposed sites, read our notes on coastal environments and lock lifespan near the coast, and ask us before ordering.
Take care. Lockwood's warranty excludes corrosion from coastal or corrosive environments, and Lockwood doesn't quote a salt spray figure for the Cortex escutcheons. The 5782 lock body carries a C6 corrosion rating under AS 4145.2-2008. For exposed sites, read our notes on coastal environments and lock lifespan near the coast, and ask us before ordering.
Installation and Servicing
What do I need to install the CTX5782?
A 28mm hole saw, the CTX5782 door preparation template printed at 100% (it carries door-edge lines for both 30mm and 38mm backsets - use the 30mm line), the correct spindle for your door thickness, and the Cortex mortice installation instructions. Add the VCam if you want Code Lockout or Latch Holdback.
A 28mm hole saw, the CTX5782 door preparation template printed at 100% (it carries door-edge lines for both 30mm and 38mm backsets - use the 30mm line), the correct spindle for your door thickness, and the Cortex mortice installation instructions. Add the VCam if you want Code Lockout or Latch Holdback.
Should I install it myself?
Narrow stile aluminium doors leave little room for error, and this is a special order item that cannot be returned. Unless you are experienced with mortice locks in aluminium doors, a professional install is the safer path. See our advice and installation service, our site survey option, or when DIY makes sense.
Narrow stile aluminium doors leave little room for error, and this is a special order item that cannot be returned. Unless you are experienced with mortice locks in aluminium doors, a professional install is the safer path. See our advice and installation service, our site survey option, or when DIY makes sense.
What are the most common installation mistakes?
The wrong spindle length, a misaligned door or strike, and too large a door gap. Our DIY installation mistakes guide covers the fixes.
The wrong spindle length, a misaligned door or strike, and too large a door gap. Our DIY installation mistakes guide covers the fixes.
Where can I find spare parts for the 5782 lock body?
The 3700 Series service manual shows the 5782 exploded parts. A replacement body to suit Cortex escutcheons is listed in our accessories table - see the 5782CTXNZSS.
The 3700 Series service manual shows the 5782 exploded parts. A replacement body to suit Cortex escutcheons is listed in our accessories table - see the 5782CTXNZSS.
Can the door be converted to a mechanical keypad later?
Lockwood's DX mechanical digital range includes a 30mm backset 5782DX configuration in the 3780 short backset series (DX part table), built with the 3782-DXKITSC kit, or the 3782-DXKOKITSC for key override. The key override kit suits 43-46mm doors only, and on opening-in doors only 30mm and 38mm backsets suit DX configurations (DX backset note). Talk to us before converting so the door preparation can be checked. Our mechanical vs smart locks chapter compares the two approaches, or browse digital mechanical locks.
Lockwood's DX mechanical digital range includes a 30mm backset 5782DX configuration in the 3780 short backset series (DX part table), built with the 3782-DXKITSC kit, or the 3782-DXKOKITSC for key override. The key override kit suits 43-46mm doors only, and on opening-in doors only 30mm and 38mm backsets suit DX configurations (DX backset note). Talk to us before converting so the door preparation can be checked. Our mechanical vs smart locks chapter compares the two approaches, or browse digital mechanical locks.
Comparing the Cortex Range
CTX5782 or CTX3772 - which do I need?
Choose by door. The CTX5782 has a 30mm backset 5782 narrow mortice lock for narrow stile doors, is 298mm tall and is not fire rated. The CTX3772 has a 60mm backset 3772 mortice lock, is 278mm tall and is fire rated. Both have key override, Code Lockout and Latch Holdback, and share the same electronics, access methods and programming.
Choose by door. The CTX5782 has a 30mm backset 5782 narrow mortice lock for narrow stile doors, is 298mm tall and is not fire rated. The CTX3772 has a 60mm backset 3772 mortice lock, is 278mm tall and is fire rated. Both have key override, Code Lockout and Latch Holdback, and share the same electronics, access methods and programming.
CTX5782 or CTX530 - what is the difference?
The CTX530 uses a 530 tubular latch with a 60mm backset, has no key override, is 215mm tall and is fire rated. Without a mortice lock and key cylinder it cannot offer Code Lockout or Latch Holdback. The CTX5782 adds key override and the mortice-only functions for narrow stile doors.
The CTX530 uses a 530 tubular latch with a 60mm backset, has no key override, is 215mm tall and is fire rated. Without a mortice lock and key cylinder it cannot offer Code Lockout or Latch Holdback. The CTX5782 adds key override and the mortice-only functions for narrow stile doors.
What if I only need cards and my door takes a standard backset lock?
The Lockwood ASSA ABLOY Integral escutcheon with key override is an offline RFID card system for 35-55mm doors that works with standard backset Lockwood locks such as the 3772 mortice rather than the narrow 5782.
The Lockwood ASSA ABLOY Integral escutcheon with key override is an offline RFID card system for 35-55mm doors that works with standard backset Lockwood locks such as the 3772 mortice rather than the narrow 5782.
Related Products, Guides and Chapters
Products: Cortex CTX530 | Cortex CTX3772 | Spare Cards - Satin Chrome (CTXCARD-05) | Spare Cards - Red (CTXCARD05) | VCam | 5782CTXNZSS mortice | 5782 narrow mortice | 3782-DXKITSC | 3782-DXKOKITSC | Integral escutcheon with key override | Lockwood range
Categories: Narrow stile and slim line | PIN code locks | Card and fob access | Backup key locks | Mortice locks for smart locks | RFID fobs, tags and cards | Fire door locks | Digital mechanical locks
Buyer's Guide: Ch 1 - Mortice vs latch | Ch 2 - Stile width | Ch 3 - Access methods | Ch 4 - Door types | Ch 5 - Fire doors | Ch 9 - DDA | Ch 10 - Lockwood | Ch 11 - AS4145 | Ch 12 - Troubleshooting | Ch 13 - Security FAQ | Ch 16 - Mechanical vs smart | All Buyer's Guide chapters
Guides: When heavy duty is worth it | Key override explained | Passage vs holdback | The realities of electronic locks | How long digital locks last | Measuring backset | Site survey | DIY install mistakes | Fire door types | DDA smart locks
Service: Advice and installation | Shipping, returns and warranty
What's in the Box - Lockwood Cortex CTX5782
- Lockwood Cortex CTX5782 electronic lockset (exterior and interior panels)
- Lockwood 5782 narrow stile mortice lock - 30mm backset
- Key override cylinder with keys
- 2 x Cortex access cards
- Spindle components (select to suit door thickness)
- Mounting hardware and fixings
- Installation instructions
Batteries are not included - 4 x AA Alkaline required. The VCam (Lockwood 3700 Series V Cylinder Cam) is required for Code Lockout and Latch Holdback and is sold separately. Additional access cards are available in packs of 5. This is a special order, non-returnable item.
Lockwood Cortex CTX5782 - Dimensions
CTX5782 lockset - overall height 298mm, width 49mm, depth 52mm (exterior and interior panels).
Lockwood 5782 Narrow Mortice Lock - Dimensions
5782 narrow mortice lock body - 30mm backset, faceplate 260mm x 25mm x 2mm, 15mm stainless deadlatching latch bolt, accepts standard 570 oval cylinders.
Lockwood Cortex - Electronic Access Control Catalogue
Page 1 - Lockwood Electronic Access Control Catalogue
Page 2 - Lockwood Electronic Access Control Catalogue
Page 3 - Cortex Digital Door Lock overview and product details
Page 4 - Features, specifications and electronic technical information
Page 5 - Cortex technology and functions
Page 6 - CTX530 exterior, interior and dimensional drawings
Page 7 - CTX3772 exterior, interior and dimensional drawings
Page 8 - CTX5782 exterior, interior and dimensional drawings
PDF Files - Lockwood Cortex CTX5782
Lockwood Electronic Access Control Catalogue (PDF)
The Cortex range catalogue - CTX530, CTX3772 and CTX5782 product details, features and specifications, the CTX5782 dimensioned drawing (page 8) and lockset ordering and spare card codes (page 9).
The Cortex range catalogue - CTX530, CTX3772 and CTX5782 product details, features and specifications, the CTX5782 dimensioned drawing (page 8) and lockset ordering and spare card codes (page 9).
Lockwood Cortex Mortice Installation Instructions (PDF)
Illustrated fitting sequence for the Cortex mortice locksets - 28mm hole saw preparation, fitting the external and internal spindles and assembling the escutcheons.
Illustrated fitting sequence for the Cortex mortice locksets - 28mm hole saw preparation, fitting the external and internal spindles and assembling the escutcheons.
Lockwood Cortex CTX5782 Door Preparation Template (PDF)
Print-to-scale drilling and marking template for the CTX5782, with door-edge lines for both 30mm and 38mm backsets - print it at 100% (actual size).
Print-to-scale drilling and marking template for the CTX5782, with door-edge lines for both 30mm and 38mm backsets - print it at 100% (actual size).
Lockwood 25 Year Mechanical Warranty (PDF)
The full Lockwood warranty terms - 25 years mechanical, 3 years on electrical and electronic parts, 12 months on keys, and finish cover by finish type (Satin Chrome plating 10 years).
The full Lockwood warranty terms - 25 years mechanical, 3 years on electrical and electronic parts, 12 months on keys, and finish cover by finish type (Satin Chrome plating 10 years).
Lockwood Selector 3700 Series Mortice Locks Catalogue (PDF)
The Selector mortice platform the 5782 body belongs to - 3780 series ratings and door clearance (page 50), 5782 dimensions and minimum internal door depth (page 53) and 5782-RK rebate kits (page 76).
The Selector mortice platform the 5782 body belongs to - 3780 series ratings and door clearance (page 50), 5782 dimensions and minimum internal door depth (page 53) and 5782-RK rebate kits (page 76).
Lockwood 3700 Series Mortice Locks Service Manual (PDF)
Servicing and mounting for the Selector 3700 platform - 5782 exploded parts (page 35) and 5782 rebate door kit mounting (pages 80-82).
Servicing and mounting for the Selector 3700 platform - 5782 exploded parts (page 35) and 5782 rebate door kit mounting (pages 80-82).
Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants): typically up to 2 years against corrosion.
- Unlacquered brass finishes naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
Australian Consumer Law
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
Confused? Overwhelmed? We get it.
Choosing the right smart lock can be genuinely tricky - door types, backsets, app platforms, compatibility with your existing hardware... there is a lot to consider. We have decades of experience fitting locks of all types, including smart locks, and we are happy to help.
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