... voltage(DC12V&24V) 4. CE & MA approved Magnetic lock SB-280ASurface mounted and suitable for wooden door, glass door ... , fireproof door. Technical Parameters: Holding force: 280kg(600LBS) Lock size: 238mm×52mm×25mm Armature plate: 185mm×40mm×10mm Working ... Enginering Co., Ltd is a professional manufacturer of Electromagnetic Lock, Electric Bolt Lock, Power supply, access controller etc. We have already ...