503.WHS - Contract Wall Magnet
Contract Wall Magnet w. Back Box for Surface Mounting 24Vdc. White
Your compatible Power Supply w. Fire Relay is available here: PS02 - 24Vdc 1.0 amp Power Supply/Fire Relay (dependent upon cable runs and door locations). If in doubt, please consult with the Door Hardware Online.
When used in conjunction with a suitable door closing device, fire alarm and detection system, these Briton electromagnetic hold open devices permit fire doors to be held open during normal operation. In the event of fire or smoke detection the units are automatically deactivated allowing the doors to close under the action of the door closer.