MZ030157 Mini magnetna brava Holding Force: 70kgs(150Lbs),Working Voltage: 12VDC,Working Current: 150mA(12VDC)For Single Door Use,Surface Mounted,Door will open when power is off(NO COM),Suitable for wooden door, glass door, metal door or fireproof door,Coil Material: Pure Cooper, large current, few residual magnet, low temperature, large force, long life, Size (L x W x H): 80 x 41 x 25mm