Borg BL5051 MG Pro ECP Mechanical Digital Lock – Back-to-Back Lever/Lever – Marine Grade Pro – Easicode Pro – Black
The Borg BL5051 MG Pro ECP is the flagship back-to-back variant in the BL5051 family – combining Marine Grade Pro construction with Easicode Pro (ECP) on-door code change. Both sides of the door carry a full keypad and lever. A code is required to enter and exit. Each keypad has an independent coding chamber – each side can have a different code, and the free passage function can be engaged independently per side.
The lock is built with 316 stainless steel internal components and MG Pro 2 black marine external coating, tested to 1,000 hours of continuous salt spray. It is fire rated to AS 1905.1-2005 (up to 4 hours depending on doorset), cycle tested to 100,000+ operations, and accepts doors from 35mm to 80mm thick. Fully mechanical – no batteries, no wiring, no power required.
Usually same day if ordered before 11am AEST (excluding weekends and Qld public holidays)
Successfully tested up to 4 hours (depending on doorset) on fire door assemblies in accordance with AS 1905.1-2005 Fire Resistant Doorsets.
316 stainless steel internal components with MG Pro black marine external grade coating. Tested to 1,000 continuous hours of salt spray. Suitable for coastal, beachside, and marine environments.
Borg warrants corrosion resistance for 12 months from date of sale under specified conditions.
The PIN code can be changed while the lock is installed. Insert the code change key over the Φ button, rotate 90° clockwise, hold, press C to clear, enter the new code digits, confirm, then release. No lock removal required. Code change can also be permanently disabled using the included plug.
Full keypads on both sides of the door. A code must be entered to open the door from either direction. There is no free egress from the inside — confirm this suits your application and complies with fire egress or building regulations.
Each keypad has its own independent coding chamber. Both sides can share the same code, or each can be set to a different code independently. The free passage function can also be engaged or disengaged per side independently.
The inside keypad requires the correct PIN before the lever operates. Confirm this complies with any fire egress or building regulations before purchasing.
After entering the code and rotating the lever, press F to engage free passage mode – that side's lever becomes free-turning without requiring the code on each use. To exit free passage: rotate the lever and press C until an audible click is heard. The free passage function can be permanently disabled using the included plug.
Entirely mechanical. No power source, no wiring, and no battery maintenance at any point.
For maximum heavy duty: consider the Lockwood DX, Borg 7701, or Carbine CDL7000 Series.
Each keypad accepts one active PIN code at a time (codes can differ between sides).
Key Features
- Back-to-back keypads – code required both sides; no free inside egress.
- Independent coding chambers – each side can be set to a different code independently.
- Easicode Pro (ECP) on-door code change – no lock removal required; includes deactivation plug.
- Free passage function per side – F button; deactivatable independently per side.
- Marine Grade Pro (MG Pro 2) black external coating – 316 stainless steel internal components.
- 1,000 hour continuous salt spray tested; corrosion resistance warranted 12 months.
- Fire rated to AS 1905.1-2005 for use on fire door assemblies (up to 4 hours).
- Fully mechanical – no batteries, no wiring, no power source.
- Over 1,000 non-sequential code combinations per keypad.
- 60mm anti-thrust stainless steel tubular latch (70mm available separately; 28mm narrow stile BLS275000 available).
- Door thickness 35mm to 80mm (standard fixings); up to 85mm with XL fixing kit.
- Cycle tested to 100,000+ operations.
- Reversible on site for left or right hand doors.
What's in the Box
- Borg BL5051MGPROECP outside keypad and lever assembly (black MG Pro)
- Inside (rear) keypad and lever assembly (black MG Pro)
- 60mm anti-thrust stainless steel tubular latch
- Strike plate and box keep
- 2 × spindles (80mm and 90mm)
- M4 stainless steel fixing screws (40mm, 50mm, 60mm options)
- 4 × 16mm screws
- Easicode Pro code change key
- Code change deactivation plug (optional)
- Free passage deactivation plug (optional)
- Hex wrench (Allen key)
- Handle screw rubber grommet
Suitable Uses
- Coastal, beachside, pool, and marine environments requiring both-sided access control
- External gates, utility rooms, and access doors in marine facilities where both entry and exit need to be code-controlled
- Fire-rated door assemblies where coastal-grade construction is also required
- Strata and managed property external doors in coastal locations where frequent code changes are needed on-site
- Applications where maximum marine durability combined with ECP on-door code management is the requirement
Borg BL5051 Series – Full Product Family
All BL5051 models are back-to-back (BTB) lever/lever — code required both sides. All are fully mechanical with no batteries. The table below shows the key differences across the range.
ECP = Easicode Pro on-door code change. MG Pro = Marine Grade Pro – 316 SS internals – 1,000hr salt spray tested. Combinations per side; each side can be set to a different code independently.
Full Specifications
Dimensions
Frequently Asked Questions
How do I change the PIN code?
With the door open, enter the current code on one side. Insert the code change key over the Φ button, rotate it 90° clockwise, then press and hold. Press C to clear the existing code, enter the new code digits, press them all again to confirm, then release and remove the key. Press C or rotate the lever to finalise. Test the new code at least 5 times. Each keypad can be changed independently – repeat the process on the other side if you want to change that code separately.
Why does this lock require a code from the inside?
The BL5051 is the back-to-back version of the BL5001. Unlike the BL5001 where the inside lever is always free to turn, the BL5051 has a full keypad on both sides — a code is required from whichever side you are on. This provides controlled access in both directions. If you need free egress from the inside (no code to exit), see the single-sided BL5001 range instead.
Can each side have a different code?
Yes. Each keypad has its own independent coding chamber. Both sides can share the same code, or each side can be set to a completely different code. The free passage function can also be engaged or exited independently per side.
How does the free passage function work on the BL5051?
Enter the correct code on one side, rotate the lever, then press the F button while the lever is still rotated. That side's lever is now free-turning. To exit free passage: rotate the lever and press C until an audible click is heard. Free passage can be engaged and exited independently on each side. If free passage is never needed, insert the included plug behind the F button slot to permanently deactivate the function on that side.
What latch do I need for a narrow frame?
The standard 60mm backset tubular latch (which is 80mm long behind the faceplate) fits comfortably into a 100×50mm door frame. If the frame is narrower, a 28mm backset narrow stile latch (BLS275000) is available separately. Confirm the frame dimensions before ordering.
Which spindle do I use for my door thickness?
Two spindles are supplied (80mm and 90mm). Use the longest that fits. The general rule is: door thickness + 30mm = minimum spindle length (15mm must seat into each lock body). For example, a 50mm door needs at least an 80mm spindle. Do not cut the spindle shorter than necessary. Spindles can be cut from the inside handle end only.
Additional Information
Monthly: apply a light spray of silicon-based lubricant (GT85 or equivalent) to both keypad and lever surfaces; wipe off excess. Do not use oil-based lubricants. Annually: remove the lock and spray internally through the button holes; test all buttons and levers. Refer to the Borg Servicing Guide PDF for full maintenance instructions.
When specifying for fire door use, confirm all other hardware in the assembly is fire-rated and compatible with the doorset certification. The BL5051 BTB requires code entry from inside – confirm this complies with emergency egress requirements for your specific application before specifying.
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled.
What's In The Box – Borg BL5051MGPROECP
- Borg BL5051MGPROECP outside keypad and lever assembly (black MG Pro)
- Inside (rear) keypad and lever assembly (black MG Pro)
- 60mm anti-thrust stainless steel tubular latch
- Strike plate and box keep
- 2 × spindles (80mm and 90mm)
- M4 stainless steel fixing screws (40mm, 50mm, 60mm options)
- 4 × 16mm screws
- Easicode Pro code change key
- Code change deactivation plug (optional)
- Free passage deactivation plug (optional)
- Hex wrench (Allen key)
- Handle screw rubber grommet
Borg BL5051 MG Pro ECP – Real Installations
Borg BL5051 Series – Dimensions
The BL5051 uses the same BL5000 series keypad body on both sides. Standard 60mm backset; 70mm available separately. Fixings suit doors 35–80mm on standard kit; 85mm with XL fixing kit.
Borg BL5000 ECP & MG Pro ECP Series – Product Brochure
Borg Locks Warranty – Australia
What is Covered
- Mechanical defects in materials and workmanship
- Defects arising under normal use and service conditions
- Repair or replacement of defective units at the discretion of the Australian distributor (LSC)
What is Not Covered
- Damage arising from misuse, vandalism, or abuse
- Damage resulting from improper installation
- Locks that have been dismantled — dismantling invalidates the warranty
- Normal wear and tear
- Cosmetic damage not affecting function
How a Warranty Claim Works
Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor for Borg Locks. If the returned item is found by LSC to be defective, it will be repaired or replaced. Products must be returned to the LSC office with freight charges prepaid within the warranty period. A detailed assessment report is provided to the customer after examination.
Contact Terry’s Locksmiths first — we will assess the issue and manage the warranty process with LSC on your behalf. You do not need to contact LSC or Borg Locks UK directly.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside — and does not limit — these statutory rights.
It can be overwhelming with all the choices out there. We can help! We are experts with decades of experience in fitting locks of all types, not just Smart Locks. It is a free service we offer, and with just some photos and a few minutes of your time you can get expert advice and product recommendations tailored precisely to suit your needs.
Click on the image below to begin your expert Smart Lock consultation
