短路，失压保护。
钢管或电缆布线均可。
订货须知：订货时请将支路数及各支路对应的电流，进出线口量及相应的方向，规格要求明确，如有总开关，并注明总开关的电流大小或提供图纸。
■Features
Able to control several motors,also to supply power for illuminatingorinstrument.
The shell is made of diecasted Al-alloyorwelded plastes with plastic-sprayed surface.
Inner components can be selected by user.
Localorremote control is availabe,or both.
Writhe protectiopn of overload,short-circuit,and voltage-ab