The triangular emergency release units type NE are intended for the realization of an emergency release in an easily accessible position. They actuate the rope or bowden cables attached to the lock. They are also suitable for retrofitting existing installations to increase safety to the state-of-the art.

At the version NE-11-RER the triangle is monitored with a bistable monitoring switch with electronic reset in level of protection IP65 to detect the emergency release at shafts with insufficient protective rooms.