1Reasonable structure, small size, beautiful appearance, equipped with protective cover, power supply is more safe and reliable 2Complete protection function, short circuit, overload, lack of phase, undervoltage protection 3With EPS fire power supply interface, DC12-24v can reliably long distance double point. 4Noiseless operation,energy saving, easy installation, simple operation and reliable performance. 5Especially suitable for office buildings requiring fire fighting. Features:Reasonable structure, small size, beautiful appearance, equipped with protective cover, power supply is more safe and reliable.Complete protection function, short circuit, overload, lack of phase, undervoltage protection.With EPS fire power supply interface, DC12-24v can reliably long distance double point.Noiseless operation,energy saving, easy installation, simple operation and reliable performance.Especially suitable for office buildings requiring fire fighting.Specifications:Model: ZGQ1M - 63/3PInput voltage: 380V Insulation voltage: 4000 (V) Rated voltage: 400 (V)EPS external indication: DC12-24VRated current: 63 (A) Rated impact withstand voltage: 4 (KV) 3C rated voltage range: 37V-440VHole: M6 Size: 18.5*13.5cm/7.28*5.31in Weight: 1700gPackage included:1 x Automatic Transfer Switch