The relays have the rest pushbutton for breaking NC contacts and the operating indication and free trip characteristics. 1.CE,ISO9001 3.OEM,ODM available 3.Full ranges of relaysUA SERIES THERMAL RELAYAPPLICATIONS 3UA series thermal relay is suitable for using is power system with AC 50Hz,rated operation voltage up to 660V and 1000V ,in main circuit ,current form 0.1A to 630 A,It is used to ...