DC12V 280kg fireproof electromagnetic lock double door with feedback signal. 280kgx2 (600Lbsx2) Static linear tension Can set 12VDC or 24VDC Factory set to 12VDC voltage standard Built-in reverse current protection devices (MOV) For wooden doors, glass doors, metal doors, fire doors Anti- residual magnetism design, selection of materials, anti-wear Shell is made of high strength aluminum alloy material Anodized Magnetic lock without mechanical failure , complete with electromagnetic suction work Increase the electromagnetic suction , professional design, double insulated handle lock body Products through the EU CE and China MA Certificate Lock Size : Length Width 500x height 47x 25 (mm) Blister Dimensions: Length Width 180x height 38x 11 (mm) Maximum tension : 280kgx2 (600Lbsx2) straight Rally Input voltage: DC12V or DC24V +10% Operating current : 12V/500mA 24V/250mA Optional Accessories : ABK-280UL ABK-280L ABK-280ZL Applicable : Wooden door , glass doors , metal doors, fire doors Surface temperature: +20 below ambient temperature within Suitable temperature : -10 ~ +55 (14-131F) Suitable Humidity : 0 ~ 95% ( relative humidity ) Shell: Anodized aluminum Lock body treatment: zinc- plating Blister treatment: zinc- plating Product Weight : 4kg