1.The quality and price is best
2.USED for AC 50/60HZ
3.CE AND ISO9000
1) 3UA Thermal Overload Relay protects the 3TB,3TF type
3UA thermal relay is suitable for using in power system with AC 50Hz, rate 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.