Borg Mechanical-Digital 3430 Gate Lock Back-to-Back - Key Override - Code Lockout

Borg BL3430 Mechanical Digital Gate Lock – Back-to-Back – Key Override & Code Lockout – Marine Grade – Black

The Borg BL3430DKOGATE is a fully mechanical marine grade digital gate lock with back-to-back keypads, a euro cylinder key override, and a code lockout / deadbolt function. Using the key not only provides manual access but also activates a code lockout that deadlocks the latch bolt – preventing the gate from being opened by keypad code until the key is used to release it.

The lock uses the forend fixing system, clamping onto the gate post with telescopic screws. It suits gate profiles from 30mm to 60mm square on standard fixings. The euro cylinder is not supplied and must be ordered separately. The lock is fully mechanical, requires no batteries, and features an anti-climb housing.

Code change uses the traditional Borg tumbler system (lock removal required). For on-gate code change with key override, see the BL3430DKOMGPROECP.

Estimated Warehouse Dispatch
Usually same day if ordered before 11am AEST (excluding weekends and Qld public holidays)

Designed for Metal Box-Section Gate Frames – Not a Door Lock
The BL3430DKOGATE is a purpose-built gate lock. It uses a forend fixing system that clamps directly onto the gate post – no mortice cutting or door-edge drilling required. Designed for square aluminium or steel gate posts from 30–60mm. For profiles wider than 60mm, an optional XL latchbolt extension is available separately.

Marine Grade – 1,000 Hour Salt Spray Tested
Marine grade quality keypads tested to 1,000 hours of salt water exposure. Suitable for coastal, beachside, and outdoor gate installations.

1 Year Guarantee Against Faulty Materials and Workmanship

Code Change Requires Lock Removal
This model uses a tumbler-based code system. To change the PIN, the lock must be removed from the gate. The keypad cover plate is removed, and red coded / blue uncoded tumblers are rearranged using the supplied tweezers. For on-gate code change, see the BL3400MGPROECP (single-sided) or BL3430MGPROECP (back-to-back).

Back-to-Back Keypads – Code Required Both Sides
This model has a full keypad unit on both the outside and inside of the gate. The same PIN code operates both keypads. Entering the code is required to enter and exit — there is no free egress from inside.

Key Override & Code Lockout / Deadbolt Function
This model includes a euro cylinder key override (cylinder not supplied). Using the key: (1) provides emergency key access, and (2) activates a code lockout — the key deadlocks the latch bolt, preventing the gate from being opened via keypad code until the key releases it.

Fully Mechanical – No Batteries Required
Entirely mechanical. No power source, no wiring, and no battery maintenance at any point.

Single PIN Code Only
Accepts one active PIN code at a time.

Code Required to Exit – No Free Egress from Inside
Unlike single-sided models, the inside keypad requires the correct PIN before the lever operates. Confirm this suits your application and complies with any applicable fire egress or building regulations before purchasing.

Key Features

• Back-to-back keypads – code required to enter and exit the gate.
• Euro cylinder key override – manual key access when code entry is not desired or possible.
• Code lockout / deadbolt – operating the key deadlocks the latch bolt, preventing all keypad-based access until key-released.
• Forend fixing system – clamps to gate post, no mortice required.
• Anti-climb housing design.
• Marine grade quality keypads, 1,000 hour salt spray tested.
• Fully mechanical – no batteries, no wiring.
• Over 8,000 code combinations.
• Spring loaded adjustable latch bolt from 65mm to 80mm.
• Telescopic fixing screws – suits gate posts from 30mm to 60mm square.
• XL latchbolt available separately for profiles up to 120mm.
• Reversible on site for left or right hand gate swing.

What's in the Box

• Borg BL3430DKOGATE outside keypad unit with anti-climb housing
• Borg BL3430DKOGATE inside keypad unit
• Adjustable spring-loaded latch bolt (65–80mm projection)
• Telescopic fixing screws (suits 30–60mm gate posts)
• Allen key (for latch projection adjustment)
• Tweezers (for tumbler code change when lock is removed)
• Fixings and installation hardware
• Note: Euro cylinder and keys are NOT supplied – order separately

Suitable Uses

• Secure storage areas, plant rooms, and restricted zones requiring back-to-back code access plus key supervisor override
• External gates in marine and coastal environments where a supervisor deadlock function is required
• Applications where the gate must be capable of being locked down completely (keypad disabled) by an authorised key holder
• Pool gates, marina facility gates, and port access requiring both keypad and key-based lockdown capability

Borg BL3400 / BL3430 Gate Lock Series – Product Family

All models are designed for metal box-section gate frames. All are fully mechanical, marine grade, salt-water tested, battery-free, and finished in black.

ECP = Easicode Pro on-gate code change. DKO = Deadlock Key Override. MG Pro = Marine Grade Pro coating. Standard fixings suit 30–60mm (non-ECP) or 40–60mm (ECP) square gate posts; XL latchbolt available for up to 120mm.

Full Specifications

Dimensions

Front view – BL3400 series
202mm H × 112mm W

Side view – BL3430 (BTB) series
120mm width across keypads

Borg Locks Warranty – 12 Months (Australia)
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 — doing so will invalidate the warranty.

Purchased through Terry's Locksmiths or one of its trading brands? Contact Terry’s Locksmiths first — we’ll manage your warranty claim with the Australian distributor on your behalf. This warranty operates alongside your rights under the Australian Consumer Law.

Download PDF Resources
Borg BL3400 Series Product Leaflet
Borg BL3100 / BL3400 Series Installation Instructions
Borg Lock Servicing Guide