Col linear Load： 50kg（110pounds）.
Dual Voltage 12/24 VDC(Adjustable).
The Standard Voltage is 12VDC when Finished.
MOV Provides Reverse Current Protection.
Low Power,Environmental Protection.
Anti-Residual Magnetism Design.
Professional Design,  Dual Insulate Housing.
Automatically close the smoke proof door when fire happens.
CE Certificate. 

DH-601 is a standard type wall mount door holder .which adopts low power consumption, that makes it more environment friendly and more durable. The Holding Force(Collinear Load) is 50kg(110Lbs)Professional anti-residual magnetism design ensures highest security. It will release automatically the fire door when fire alarms. It also contains build-out release button for testing and build-in MOV which reverse current protection.