Door interlocks

KRONENBERG door interlocks are used to monitor swing doors and sliding doors. They are type-approved according to the European norm EN81.

Door interlocks

Door interlocks

for standard applications

KRONENBERG offers doors interlocks in various designs and for many different applications and optionally with integrated monitoring of the emergency release according to EN 81-21.
An extensive range of accessories complements the standard devices for single and double-leaf doors.

with integrated motor

The product portfolio also includes door locks with motor drive for installations that are operated without retiring cam. The motor drives are particularly silent and energy-saving.
Due to the low noise level these door locks are ideally suited for use in home lift installations.

with increased protection

For special applications KRONENBERG also offers door locks with an increased level of protection.
Depending on the requirements you can choose the door locks in the protection levels IP40, IP54 or IP67.
The DL(F)1-EX can be used in installations where explosion-protection is required.


We offer an extensive range of accessories for our door interlocks. This includes among others latch plates, triangular keys, single and reversing bearing blocks, triangle actuations for an external emergency release, bowden cables many more.



The extensive range of adaptations allows the exchange of no longer available door locks of other brands as well as the refitting of missing safety functions.
The program is constantly extended and can be adapted to the individual requirements.