Dc-N524G 24V Dc Mortice Electric Release Grey Fail Unlocked
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 and Emergency Safety with the Dc-N524G
Balancing building security with effortless life safety requirements often creates significant design challenges for property managers and electrical contractors. When managing high footfall internal doors, access control setups must keep private spaces restricted during routine working hours while guaranteeing immediate, free egress if a power cut or fire alarm occurs. A standard mechanical latch alone cannot offer this automated flexibility, and poor electric release hardware can result in sticking latches, frequent maintenance callouts, and compromised security protocols.
The Dc-N524G 24V Dc Mortice Electric Release Grey Fail Unlocked solves this exact problem by combining dependable electromechanical performance with a resilient, flush mortice profile. Designed specifically for low voltage 24V DC systems, this mortice electric strike remains locked while constant electrical power is delivered to the internal coil. As soon as power drops, the internal jaw mechanism relaxes, permitting standard mortice nightlatches or latchbolts to push past without resistance. This fail unlocked behaviour ensures occupants can exit through internal doorways freely during an unexpected blackout, making it an essential component for commercial offices, clinics, residential common areas, and modern retail environments.
Stage by Stage Planning and Installation Guide
Stage 1 Door and Timber Frame Preparation
Begin by marking the position of your existing latchbolt onto the frame strike zone. The mortice cavity must be neatly prepared to accept the body of the Dc-N524G. Ensuring sufficient depth inside the frame jamb allows the body and wiring connections to sit completely flush, preventing latch binding or physical obstruction against the moving door leaf.
Stage 2 Electrical Routing and Wiring Integration
Run protected low voltage security cabling directly from your regulated 24V DC power supply to the mortice cutout. Connect the terminal leads neatly to the internal solenoid contacts, making sure all wires remain free from pinching behind the metal housing. Double check the supply voltage with a multimeter to ensure a smooth, stable 24V DC current without voltage dips.
Stage 3 Faceplate Fitting and Alignment
Position the grey finished faceplate square within the mortice recess and secure it firmly using suitable countersunk screws. Align the moveable strike jaw directly with the mechanical latchbolt. A level installation avoids pre-load pressure against the jaw, allowing the mechanical latch to engage cleanly whenever the door swings shut.
Stage 4 Operational and Safety Verification
Test the completed assembly across both powered and unpowered states. Confirm the release holds firmly when 24V DC is supplied through access readers, intercoms, or keypad systems. Then, cut the electrical circuit to verify that the release promptly transitions into its fail unlocked condition, ensuring immediate manual passage for safe evacuation.
Key Features and Practical Benefits
The Dc-N524G 24V Dc mortice electric release grey fail unlocked model is built to provide smooth operation in a wide variety of commercial and institutional access control configurations. Its purposeful engineering offers several daily advantages for installers and building users alike.
- Fail Unlocked Operation Known interchangeably as fail safe mode, the latch automatically releases when electrical current ceases, allowing unhindered emergency egress along key escape routes.
- Regulated 24V DC Supply Engineered to interface seamlessly with modern commercial door entry systems, networked controllers, and backup battery power supplies without excessive heat buildup.
- Durable Grey Protective Coating The resilient grey faceplate finish presents a clean, neutral architectural appearance suitable for standard painted timber, metal, or composite frames.
- Flush Mortice Construction Neatly mounts inside the door frame cavity, keeping wiring concealed and shielding internal electrical components against dust, moisture, and deliberate interference.
- Quiet Mechanical Articulation The internal jaw actuates smoothly, reducing sharp mechanical clatter during high frequency cycling in shared office entrances and communal foyers.
Technical Specifications
| Specification | Rating or Standard | Practical Details |
|---|---|---|
| Product Model | Dc-N524G | Specialist mortice electric release unit |
| Operating Voltage | 24V DC | Compatible with regulated commercial access controllers |
| Operating Mode | Fail Unlocked (Fail Safe) | Releases immediately upon power loss for emergency exit safety |
| Installation Style | Mortice Frame Mount | Concealed flush profile within wooden, aluminium, or composite frames |
| Faceplate Finish | Grey Painted / Coated | Neutral appearance designed to blend with contemporary hardware |
| Latch Compatibility | Standard Mortice Latches | Works alongside spring latchbolts and standard mortice nightlatches |
Frequently Asked Questions
What does fail unlocked mean in everyday operation?
Fail unlocked means the unit requires constant electrical current to stay in a locked state. If power is intentionally cut by an access control keypad or interrupted during an emergency mains outage, the internal locking jaw opens immediately. This feature prevents occupants from becoming trapped inside a room or corridor when life safety is the top priority.
Can this unit run on an AC power supply?
No, this specific model requires a continuous, smooth 24V DC power feed. Supplying AC current or incorrect voltage can lead to solenoid buzzing, overheating, or permanent coil damage. Always verify your transformer outputs clean DC current before completing the final connection.
Does the Dc-N524G work on both left and right hand opening doors?
Yes, standard mortice electric releases of this profile are designed to support non-handed installation. The faceplate and release body can be inverted within the frame preparation to suit either inward or outward swinging doors, provided the latchbolt aligns cleanly with the jaw pocket.
What mechanical lockcases should I pair with this release?
The unit is engineered to work alongside standard mortice latch locks, passage sets, and nightlatches with a spring-loaded latchbolt. It is not intended for deadbolts, as a thrown deadbolt will prevent the release jaw from pivoting open freely.
Need Expert Technical Advice for Your Project?
Selecting the right electronic release, power rating, and fail safe configuration requires precision. If you need assistance checking lock compatibility, power supply capacities, or building compliance, our architectural ironmongery specialists are always on hand to help.
Contact Our TeamSpecification
| Operation | Fail Safe |
|---|---|
| Finish | Grey |

