JR20 series thermal overload relay
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thermal overload relay
JR20 series thermal relay is suitable for the power of AC50Hz, main circuit rated voltage up to 660v, current up to 630A, used as protecting AC three-phase motor against overload and phase losing, and forming electromagnetic with starter CJ20 series AC contactor. It has functions of phase-losing protection temperature compensation, trip indication. It can passively and automatically get back.