继电器 — 3UA 热过载继电器 
详情描述
3UA series thermal relay can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V, rated current 0.1-400A for protecting the phase break when the electric motor is overload. The relay has different mechanism and temperature compensation& can be plunged in3TB 3TF series AC contactor
| 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 |
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