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Narrow black mortise lock body with silver faceplate and mounting hardware

YINGHUA

YINGHUA Narrow Door Electric Bolt Mortise Lock DC 12V Black NO

SKU CH-KAA1-TKZ0P

A narrow mortise bolt lock for access control, running on 12 V DC with adjustable 0, 3, 6 second delay and selectable fail-safe or fail-secure modes

  • Main functionEntrance
  • Product typeChain Guard
  • Main materialMetal
  • Narrow 28 mm body fits slim door profiles
  • DC 12 V operation with 0.09 A holding current
  • Adjustable 0, 3, 6 second release delay
  • Fail-safe NC/NO modes for access-control integration
  • Zinc-alloy black finish with surge protection built in

Narrow Door Electric Bolt Mortise Lock

The YINGHUA electric bolt mortise lock is built for narrow door profiles in access control systems. It operates on DC 12V power and offers selectable fail safe or fail secure modes. The black zinc alloy body includes a faceplate and mounting hardware for professional installation on glass, wood or metal doors.

Check voltage wiring and door clearance before

Verify the supply delivers 12V DC and can handle a 0.9A start current dropping to 0.09A in hold state. Confirm the 200 by 28 by 38 millimetre case fits the door stile and that the frame allows the bolt throw. Choose the unlock behaviour, power to lock or power to unlock, and set the 0, 3 or 6 second delay to match the controller.

Suits installers fitting narrow stile doors

This lock suits projects needing a compact mortise bolt with feedback signal and adjustable relock delay. It is not for doors requiring a latchbolt or handle operation, buyers needing battery backup, or frames that cannot accommodate the 200mm body length.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $556.99
Pricier than about 92% of the 2,145 comparable items (median $55.99).

Specifications

Product
Product typeChain Guard
Size & build
Main materialMetal
More details
Main functionEntrance

Questions about this item

What parts are included with the lock and what else is needed for installation?

The package contains the electric lock, a faceplate, and screws and bolts. A separate DC 12 V power supply and access control wiring are required to operate the unit.

Which secure mode should be chosen — NC or NO — for a door that must stay locked during a power cut?

The NC (normally closed) version keeps the bolt extended when power is removed, so the door remains locked during a power failure. The NO (normally open) version releases the bolt when power is lost.

How much current does the lock draw from a 12 V supply when it first activates?

The starting current is 0.9 A at 12 V, then it drops to 0.09 A while holding the bolt in the working state.

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