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Locks for fire doors

Fire door locks meet special requirements regarding fire protection and security to enable a quick and safe escape in the event of a fire and to prevent the spread of fire and smoke.

Brief and clear

What is a fire door lock?

A fire door lock is a specially developed door lock designed for use on fire doors. It not only provides protection against unauthorized access, but is also certified for mechanical locks according to DIN EN 12209. Variants with panic function additionally comply with the European standards DIN EN 179 (emergency exits) and DIN EN 1125 (panic doors). Such a lock secures fire doors against fire and smoke to keep escape routes open and safe in the event of a fire.

BKS mortise lock fire protection for doors

Function & benefits of a fire door lock

Fire door locks combine reliable locking technology with tested security in accordance with DIN 18251 as well as EN 179 and EN 1125. They meet the highest requirements for fire protection and escape safety – ideal for doors in public buildings, administrative offices, or commercial construction. With variants featuring panic function, silent latch, or top locking, the locks can be flexibly adapted to the respective security concept – for maximum protection in case of emergency.

  • Fire protection certification: Fire door locks must be tested and certified according to strict standards (e.g. EN 12209, DIN 18251).

  • Smoke tightness: The locks support the door’s tightness against smoke.
  • Burglar resistance: Many models offer additional protection against burglary attempts.
  • Durability and robustness: They are specially designed for long-term use in fire doors.
  • Compatibility: Fire door locks are compatible with various door types and thicknesses.

Where are fire door locks used

A fire door lock is essentially used wherever regulations require the use of fire protection and escape route doors:

  • Residential buildings and apartment complexes with increased security requirements

  • Office and administrative buildings

  • Hospitals and care facilities

  • Industrial and warehouse buildings

  • Public institutions such as schools and authorities

BKS fire door locks

Discover the BKS fire door locks for timber, steel, and tubular frame doors.

mortise lock with profile cylinder lock

To the fire door locks for timber and steel doors

Our fire door locks meet the highest requirements for fire protection, functionality, and security.
BKS mortise lock fire protection for doors

To the fire door locks for tubular frame doors

Our fire door locks are specially designed to meet the high requirements for fire protection and escape safety.

Your questions – our answers

What distinguishes a fire door lock from a standard door lock?

Can I install a fire door lock myself?

How often does a fire door lock need to be serviced?

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