3UA Series Thermal Relay

Thermal Relay 1.CNYH-More than 20 years' electrical manufactor 2.CE,ISO9001 3.OEM,ODM available 4.Full ranges of relays

3UA Series Thermal Relay

1.CNYH-More than 20 years' electrical manufactor2.CE,ISO90013.OEM,ODM available4.Full ranges of relays

Application

 3UA thermal relay is suitable for using in 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 current setting value can be regulated and the setting current values of many thermal elements are intercrossing overleaping arrangement , for easy selecting by the customers from -25°C to +55°C air temperature as the products have temperature compensating .The relays have the test push-button for breaking NC contacts, the operating indication and free trip characteristics. It conforms to IEC292-1,IEC337-1&VDE0660.

Technical Data

Type	Rated operating current(A)	Rated insulation Voltage(V)	Current setting range (A)
3UA50	12.5	660	0.1~0.16,0.16~0.25,0.25~4,0.32~0.63,0.63~0.1,0.8~1.25,1~1.16,1.25~2,1.6~2.5, 2~3.2, 2.5~4 ,3.2~5 ,4~6.3, 5~8 ,6.3~10 ,8~12.5
3UA52	25	660	0.1~0.16,0.16~0.25,0.25~ 0.4, 0.4~0.63 0.63~1, 0.8 ~1.25, 1~1.6, 1.25~2, 1.6~2.5,2~3.2,2.5~4, 3.2~5, 4~6.3, 5~8, 6.3~10, 8~12.5, 10~16, 12.5~20, 16~25
3UA54	32	660	4~6.3,6.3~10,10~16,12.5~20,16~25,20~32
3UA58	80	1000	16~25,20~32,25~40,32~50,40~57,50~63,57~70,63~80
3UA59	63	600	0.1~0.16, 0.16~0.25,0.25~0.4,0.4~0.63,0.63~1 0.8~1.25 ,1~1.6 ,1.25~2,1.6~2.5,2~3.2,2.5~4 3.2~5 ,4~6.3, 5~8, 6.3~10, 8~12.5, 10~16, 12.5~20, 16~25, 20~32 ,25~40 ,32~40, 32~45, 40~57,50~63
3UA62	180	660	55~80, 63~90, 80~110, 90~120, 110~135, 120~150, 135~160, 150~180,
3UA66	400	1000	80~125,125~200,180~250,200~320,250~400
3UA68	630	1000	320~500,400~630

3UA Series Thermal Relay