This electrically activated magnetic lock operates on 12 or 24 volts DC. It is made of a pair of connected ECL-ACC300s, and is designed for double doors. Anodized aluminum housing Dual voltage (selectable) 12VDC, 500mA (each) 24VDC, 250mA (each) Grips with 1200lb (272kg) total pressure distributed over two units No residual magnetism Detachable faceplate Adjustable mounting bracket MOV surge protection Complete hardware included.