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Dantech Electronic Engineering, powering security.
Two door interlock
Made in Britain

This is a two door interlock system that monitors the states of both doors. Upon request, the unit will release a door while the request exists, and only if the other door is secure (i.e. door not released and door contacts closed). 12V DC operation. Time release available.

Operation of DA550

Example: The button for door A is pressed. Control for door B is tested. If not released, then monitor for door B is tested. If secure, contacts for door A are operated for time set by your controller. During this time a signal prevents B from operating. While door A is open the monitor also prevents B from operating. Door B cannot be released until door A release times out and door A is secure.

Product code Description Data sheet Leaflet
DA550 2 Door interlock in a mild steel enclosure PDF PDF
DA550-T Timed 2 door interlock in a mild steel enclosure PDF PDF
*These units are available for same day despatch worldwide. Next day delivery available to mainland UK.
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