KEY FEATURES Suitable for fire escape doors in large-scale buildings. It releases the armature plate to allow the door closer to close the door when a fire alarm or emergency is detected, to keep smoke in a limited area. Wall mounted installation Adjustable or fixed armature plate SPECIFICATIONS DA BR-DH501 Voltage 12/24V DC Current Draw 100mA/12VDC, 50mA/24VDC Holding Force about 100lbs Built-in voltage spike suppressorAdjustable or fixed armature plateNo residual magnetism Dimensions unit : mm
