Dc-Ng 12V Ac Mortice Electric Release Grey Fail Locked
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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Description
Reliable Access Control with the DC-NG 12V AC Mortice Electric Release
Controlling physical entry while maintaining effortless daily movement is a fundamental challenge for modern commercial and residential properties. Traditional mechanical latch locks demand physical keys, which inevitably leads to misplaced copies, expensive rekeying routines, and troublesome delays for visiting guests or contractors. When upgrading an existing timber or steel frame door to work with a contemporary intercom or keypad, choosing the right hardware interface is essential to ensure dependable operation throughout heavy cycles of use.
The Dc-Ng 12V Ac Mortice Electric Release Grey Fail Locked provides a clean, unobtrusive solution by replacing the standard strike plate in your doorframe. Built to work alongside your existing mortice nightlatch or standard latch bolt, this unit controls door release using standard 12V alternating current. Its fail locked, or fail secure, operation ensures that if electrical power is disrupted, the latch jaw remains firmly fixed, keeping the perimeter physical barrier completely protected against unauthorised entry.
Finished in a neutral grey coating that blends effortlessly into both painted timber and modern metal architectural frames, this strike delivers long term durability without requiring complex frame modifications. Whether you are fitting out a shared residential apartment entrance, a secure office department, or a light commercial reception area, Doorfit offers this dependable hardware component to make your access setup straightforward and resilient.
Core Features and Functional Benefits
Fail Locked Security Principle
Operating on a fail locked format, this electric strike stays mechanically secure whenever electrical current is absent. The jaw unlocks only when a temporary 12V AC electrical impulse is triggered via your chosen release button, entry keypad, or audio video intercom handset. This ensures that a local power cut will never compromise your external building security, as the door remains firmly latched shut until manual keys or backup egress systems are used.
Standard 12V AC Operating Coil
Engineered specifically to run on 12V AC power supplies, this strike works harmoniously with traditional door entry transformers and legacy buzzer systems. The alternating current naturally produces an audible humming tone when energised, giving visitors clear, immediate confirmation that the door has released and can be pushed open without forcing the latch.
Durable Mortice Installation
The mortice style mounting profile allows the body of the strike to sit flush within the door frame rebate. This neat arrangement conceals working mechanical parts inside the jamb, protecting the device from tampering, accidental impacts, and weathering while providing a discreet architectural appearance across modern interior or sheltered exterior doors.
Hardwearing Grey Faceplate Finish
Finished in a durable grey protective coat, the faceplate resists scuffs, surface corrosion, and wear from constant latch tongue contact. The subdued grey tone is versatile, looking smart alongside modern anodised aluminium, painted wood, or stainless steel door fittings without demanding specialised upkeep or constant polishing.
Stage by Stage Execution Pipeline
Stage 1: Frame Preparation and Morticing
First, assess the frame depth and latch alignment. The timber or metal door jamb is routed out to create a clean cavity for the strike casing. Ensuring accurate depth allows the faceplate to sit flush with the frame surface, preventing door bind and guaranteeing seamless latch engagement.
Stage 2: Electrical Cable Routing
Next, route low voltage wiring through the structural frame to the back of the cut cavity. The installer connects the twin 12V AC lines from the power supply and access controller, ensuring all connections are cleanly terminated and tucked away to prevent trapped wires during fixing.
Stage 3: Fastening and Jaw Alignment
The release body is securely screwed to the jamb using high grade fixings. The installer then checks the latch bolt entry angle against the moveable release keeper. Proper alignment prevents side load pressure on the internal components, enabling free mechanical movement.
Stage 4: Commissioning and Testing
Finally, test the system by triggering the entry device. Listen for the distinct alternating current buzz as the release activates, then push the door open to confirm smooth clearance. Make any final minor adjustments to the strike alignment to ensure solid latching upon closing.
Detailed Specifications
| Specification | Rating or Standard | Practical Details |
|---|---|---|
| Operating Voltage | 12V AC | Standard low voltage alternating current power supply |
| Security Mode | Fail Locked (Fail Secure) | Maintains perimeter security during total power outage |
| Mounting Format | Mortice Inset | Designed for flush cut out fitting within door frames |
| Finish | Grey Powder Coat | Protective neutral coating for timber and metal frames |
| Latch Compatibility | Standard Mortice Nightlatches | Works with standard sprung bevelled latch bolts |
| Audible Feedback | AC Buzzer Sound | Provides acoustic confirmation of release while energised |
Important Installation Guidance
When installing the Dc-Ng 12V Ac Mortice Electric Release Grey Fail Locked, please confirm that the door leaf does not exert heavy preload pressure against the strike jaw when closed. Weather stripping or misaligned door closers can push against the latch, requiring excessive force for the electrical coil to pull back the internal release mechanism. Proper door hanging and alignment ensure reliable release action on every activation cycle.
Need Help Specifying Your Access Hardware?
Our experienced architectural ironmongery team is on hand to assist with product compatibility, wiring queries, and complete entrance solutions.
Contact Our TeamSpecification
| Operation | Fail Secure |
|---|---|
| Finish | Grey |

