Fire protection door locks for timber and steel doors
Our fire protection door locks for timber and steel doors meet the highest requirements for fire protection, functionality, and security – both in private residential buildings and in public and commercial properties. Thanks to their standardized dimensions according to DIN 18251 and their tested suitability for fire protection closures in accordance with DIN EN 12209, they are suitable for use in fire doors.
With precise mechanics, low-maintenance design, and a wide range of variants – such as Series 23 or 1206 – BKS fire protection door locks offer a reliable solution for heavily used fire doors. The locks can be combined with standard profile cylinders and fittings – a free-running cylinder is not required.
Optionally available with silent latch, monitoring contacts, or panic function, they also meet the requirements of EN 179 and EN 1125 – ideal for doors in escape and rescue routes or publicly accessible areas.
Features
The compact design enables installation in single- and double-leaf fire protection door systems made of timber and steel
Backset dimensions from 25 mm offer high flexibility in the selection of door profiles and fire protection requirements
The reversible latch allows use for DIN left as well as DIN right – ideal for flexible planning and installation
- Fire protection door locks according to DIN 18251 and DIN EN 12209 are optimally suited for certified fire doors
- The locks are compatible with standard profile cylinders and fittings – a free-running cylinder is not required
- Optionally, a silent latch is available for quiet closing – ideal for sensitive areas with fire protection requirements
The locks are low-maintenance, durable, and designed for reliable continuous use on heavily frequented fire-resistant doors
- Various versions enable additional functions such as frame protection latch, top locking, or panic function according to EN 179 / EN 1125
Fire protection door locks: The right choice – not only in terms of security
Fire protection door locks for timber and steel doors combine durable locking technology with high adaptability to different door systems in the fire protection sector. Whether in administrative buildings, public institutions, or residential construction – certified security according to DIN 18251 and DIN EN 12209, as well as a variety of versions with panic function or silent latch, allow fire protection door locks to be reliably and compliantly integrated into modern fire protection and security concepts.
Reliability
The reliable mechanics ensure permanently secure operation even under heavy use. Ideal for use in tested fire protection doors in commercial and residential areas.
Versatility
Whether panic function, emergency exit approval, or quiet door closing – fire protection door locks for timber and steel doors can be flexibly adapted to door profile, standards, and application requirements.
Security
Certified versions offer increased protection against fire spread and burglary. They meet the requirements of DIN 18251, EN 179, and EN 1125 for escape and rescue routes.
Technical data & standards
| Products | Type of lock | Usable in | Panic function | Secured latch hold | Type | Note | |||
|---|---|---|---|---|---|---|---|---|---|
| 1-leaf | 2-leaf | ||||||||
| Mortise locks Series 23 (manual locking) |
Fire protection door lock |
x | - | x | - | Optional | B-2338 | Frame protection latch optional |
|
| Fire protection door lock (for raised door handles) |
x | - | - | - | Optional | B-2368 | |||
Standards and safety requirements
Fire protection door locks for timber and steel doors meet the highest safety requirements according to DIN EN 12209 and DIN 18251. Versions with panic function also comply with the European standards DIN EN 179 (emergency exits) and DIN EN 1125 (panic doors). VdS-certified versions are approved for burglar-resistant doors according to DIN EN 1627–1630. In addition, numerous models have tested fire and smoke protection suitability as well as CE marking for use in the European market.
suitability for fire protection
Approved for use on fire and smoke protection doors
mechanically operated locks and strike plates
EN 12209 is a European standard that deals with mechanical locks and striking plates for doors. This standard defines the requirements for security, functionality, and durability of mechanical locks. It includes test procedures for evaluating the performance of these products in various categories such as durability, corrosion resistance, and resistance to tampering.
VDS
Profile cylinders with this marking are available in VdS version.
RC
The EN 1627 standard is a European standard that defines requirements and classifications for burglar-resistant components such as doors, windows, curtain walls, grilles, and roller shutters. This standard is part of a series of standards, which also includes EN 1628, EN 1629, and EN 1630, covering various aspects of testing these products for their resistance to burglary.Resistance classes (RC = Resistance Class) are a central element of this standard and indicate how well a component withstands a burglary attempt. There are several resistance classes, from RC 1 to RC 6, with each higher class offering better protection. [doc2]
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