503.WH Briton Contract Magnet - Surface Mounted

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 operator.

• Fully certified to EN 1155
• Built-in Release/Test button to simulate alarm activation
• EN 1634 fire tested for 2-hour timber fire doors
• Guarantee: 5-years mechanical and 2-years electrical