继电器具有相位故障保护和从手动转换为自动重置的功能。

Thermal overload relays offer phase failure protection and are convertible from manual to automatic reset.

youdao

继电器具有相位故障保护和从手动转换为自动重置的功能。

Thermal overload relays offer phase failure protection and are convertible from manual to automatic reset.

youdao