Features Compact Design for Easy Installation ficiently designed for tight spaces, this transfer switch features a small size and reasonable structure, ensuring a seamless fit in any electrical setup Comprehensive Protection Features uipped with short circuit, overload, phase loss, and undervoltage protection, this automatic transfer switch safeguards your electrical system against potential risks Features: 1、Reasonable structure, small size, beautiful appearance, equipped with protective cover, power supply is more safe and reliable 2、Complete protection function, short circuit, overload, lack of phase, undervoltage protection 3、With EPS fire power supply interface, DC12-24v can reliably long distance double point. 4、Noiseless ,energy saving, easy installation, simple and reliable performance 5、Especially suitable for office buildings requiring fire fighting Specification: 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 ,energy saving, easy installation, simple and reliable performance. Especially suitable for office buildings requiring fire fighting. Specification: Model: ZGQ1M - 63/3P Insulation voltage: 4000 (V) Rated voltage: 400 (V) EPS external indication: DC12-24V Rated current: 63 (A) Rated impact withstand voltage: 4 (KV) 3C rated voltage range: 37V-440V Size: 18.5 x 13.5cm / 7.28 x 5.31in Weight: 1685g Package included: 1 x Automatic Transfer Switch Package List