STEPHENSON GOBIN 87 - 0301 门自动控制装置, 24VDC
Stopping a fire spreading is paramount in any building or workplace, but where doors are constantly left open for ease of access etc. then a possible route of spread exists. This magnetic door retainer offers a simple solution to automatically closing doors in an emergency, assuming the doors are fitted with door closers. The Magnetic Retainer is mounted to the wall whilst the Keep plate is mounted to the door or shutter so it is aligned with the retainer.