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

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。

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

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。

youdao