3-pole contactor specially designed for capacitor switching
Handles peak currents exceeding 100x nominal RMS current
Delivered complete with damping resistors
Electrical durability:
250,000 cycles for Ue < 500V
100,000 cycles for 500V ≤ Ue ≤ 690V
Built-in auxiliary contact (1NO)
AC operated control circuit with laminated magnet
Dimensions: 54 mm (W) x 141 mm (D) x 130 mm (H)
Weight: 0.81 kg
Wide range of compatible ABB accessories
Special resistor block ensures capacitor precharging
If you need a contactor that can handle extreme inrush conditions without breaking a sweat, the ABB UA30-30-10RA is a top choice. Designed with capacitor precharging through damping resistors, it guarantees reduced stress on your electrical components, prolonging system life and improving performance. Plus, ABB’s legendary reliability means fewer breakdowns and higher uptime for your critical applications.
Industrial Plants
Renewable Energy Systems
Heavy Machinery Installations
Power Factor Correction Panels
Capacitor Banks
Electrical Infrastructure Projects
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| Technical Specification | Details |
|---|---|
| Number of Main Contacts NO | 3 |
| Number of Main Contacts NC | 0 |
| Number of Auxiliary Contacts NO | 1 |
| Number of Auxiliary Contacts NC | 0 |
| Number of Poles | 3P |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1 |
| Rated Operational Voltage | Auxiliary & Main Circuit: 690 V |
| Rated Frequency (f) | Auxiliary, Control, Main Circuit: 50 / 60 Hz |
| Conventional Free-air Thermal Current (Ith) | 16 A (at 40°C) |
| Rated Operational Current AC-15 (Ie) | Up to 6 A depending on voltage |
| Rated Operational Current DC-13 (Ie) | Up to 6 A depending on voltage |
| Rated Operational Power AC-6b (Pe) | Up to 34 kvar depending on voltage and temperature |
| Short-Circuit Protective Devices | gG Type Fuses: Auxiliary 10 A, Main 200 A |
| Rated Short-time Withstand Current (Icw) | 140 A for 0.1s, 100 A for 1s |
| Maximum Breaking Capacity | Up to 820 A at 440 V |
| Rated Insulation Voltage (Ui) | Up to 1000 V |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV |
| Electrical Durability | 250,000 cycles (<=440 V), 100,000 cycles (500-690 V) |
| Maximum Electrical Switching Frequency | 240 cycles/hour |
| Rated Control Circuit Voltage (Uc) | 230-240 V (50 Hz), 240-260 V (60 Hz) |
| Coil Consumption | Holding: 12 VA, Pull-in: 120-140 VA |
| Power Loss per Pole | 0.1 W |
| Operate Time | Opening: 4-11 ms, Closing: 8-21 ms |
| Mounting Options | DIN Rail (TH35-15, TH35-7.5) or Screws (M4) |
| Connecting Capacity Main Circuit | Flexible: 2.5-4 mm², Rigid: 2.5-6 mm² |
| Connecting Capacity Auxiliary Circuit | Flexible: 0.75-2.5 mm², Rigid: 1-4 mm² |
| Degree of Protection | IP20 (Auxiliary, Coil, Main Terminals) |
| Connecting Terminals | M5 pozidriv screws with open connectors |
| Terminal Type | Screw Terminals |
| Product Name | Block Contactor |
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