ABB UA50-30-00-RA-80 UA50 Contactor, 690 V AC V Coil, 3 Poles
Sku #47152230380
MFG #UA50-30-00-RA-80
Attributes
| Type: | AC Operated |
| Coil Voltage: | 690 V AC |
| Number of Poles: | 3 |
| Series: | UA50 |
| Coil Power Rating: | 62 kV |
| Frequency Rating: | 50 to 60 Hz |
- For capacitor switching can be used for installations in which the peak current far exceeds 100 times nominal rms current
- RoHs, CSA, cUL, CE, GOST
- The contactors are delivered complete with their damping resistors and must be used without additional inductances
- The capacitors must be discharged (maximum residual voltage at terminals ? 50 V) before being re-energized when the contactors are making
- The UA..RA contactors are fitted with a special front mounted block, which ensures the serial insertion of 3 damping resistors into the circuit to limit the current peak on energization of the capacitor bank
- Their connection also ensures capacitor precharging in order to limit the second current peak occurring upon making of the main poles
- The insertion of resistors allows to damp the highest current peak of the capacitor when switching on, whatever its level
- 62 kV at 600 V UL/CSA