Electric deadbolt lock Kraft KRF-500A is a model of a high-quality deadbolt lock of the normally open type with electric control for organizing access control at entrance doors inside an office building or business center, industrial and domestic premises, as well as other similar purposes. In addition, it can be successfully used as a second, hidden lock in an apartment, house or office.
It is made in a high-quality metal case and equipped with a retractable steel bolt with a length of 15.5 mm, which can withstand very heavy loads. The lock belongs to the normally open type – the bolt of the lock is locked in the absence of the necessary tension. The lock is powered by a constant voltage of 12 Volts with a consumption current of only 130 mA. An opening delay relay is built into the KRF-500A deadbolt lock – one of the four available intervals of 0/3/6/9 seconds is set, which allows for individual adjustment for comfortable use and indication of sufficient time for opening the door and passage.