Jingda Electrical Group Co., Ltd. [China]

Detailed Product Description

APPLICATIONS
3UA series thermal relay is suitable for using in the power system with AC 50Hz, rated operation voltage
up to 660V and 1000V, in main circuit, current from 0.1A to 630A, It is used to protect AC three - phase
asynchronous motor against overload and open - phase. The relays have the rest push - button for
breaking NC contacts and the opertaing indication and free trip characteristics. The products also can
be supplied with protecting case to ensure safety. The produsts can be plugged in the contactor and
intalled independently or mounted by rail.