3UA Thermal Relay

Detailed Product Description

3UA Thermal Relay(Thermal Relay,Relay)

Application:

1) It 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.

2) It is used to protect AC three-phase asynchronous motor against overload and open-phase. 3) The current setting value can be regulated and the setting current values of many thermal elements are intercrossing overlapping arrangement, for easy selecting by the customers from -25 to +55 air temperature as the products have temperature compensating.

4) The relays have the test push-button for breaking NC contacts, the operating indications and free trip characteristics. The items conform to IEC60947-4.

Type:

3UA50 3UA52 3UA54 3UA55 3UA59 3UA58 3UA60 3UA61 3UA62 3UA66 3UA68

LR1-D Thermal Relay, LR2-D Thermal Relay, 3UA Thermal Relay, GT Thermal Relay, TH-K Thermal Relay, TH Thermal Relay, TR Thermal Relay, DTH Thermal Overload Relay, Star-delta Reduced Voltage Starter, LE1-D Magnetic Starter, LE1-DN Magnetic Starter

Specifications: 

Type	Rated operating current (A)	Rated insulation voltage (V)	Current Setting range (A)
3UA50	12.5	660	0.1~0.16,0.16~0.25,0.25~0.4,0.32~0.63, 0.63~0.1,0.8~1.25,1~1.6,1.25~2,1.6~2.5, 2~3.2,2.5~4,3.2~5,4~6.3,5~8,6.3~10,8~12.5
3UA52	25	660	0.1~0.16,0.16~0.25,0.25~0.4,0.32~0.63,1.63~1, 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	660	16~25,20~32,25~40,32~50, 40~57,50~63,57~70,63~80
3UA59	63	660	0.1~0.16,0.16~0.25,0.25~0.4,0.32~0.63,0.63~0.1, 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, 20~32,25~40,32~45,40~57,50~63
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