Time relays
Effeff
By actuating the push button the time relay is activated. According to this the door becomes openable for a set period. During this time the door can be opened. By closing the door locking happens immediately.
With AC operation the release of strike makes a humming noise (use a transformer as a power supply). With DC operation there is no noise (use a rectifier device as a power supply).
Effeff
About the effeff factory
Founded in 1936, the German effeff factory now officially the Assa Abloy Sicherheitstechnik GmbH, is a competent partner for mechanical and electromechanical security solutions making buildings protected, more secure and convenient all around the world.
The company is the developer, manufacturer and distributor of high value and versatile products of the effeff and Ikon brands with rich traditions, used both in the private, business and public sector. The Effeff products are made in Albstadt.