ABB UA63-30-00RA capacitor switching contactor with 110 V AC coil, three poles and integrated damping resistors for industrial capacitor bank control applications.
£523.57
The ABB UA63-30-00RA (1SBL371024R8400) is a specialised three-pole capacitor switching contactor designed for reliable control of capacitor banks in industrial power factor correction systems. As part of the ABB UA..RA contactor range, it is engineered to manage high inrush currents during capacitor energisation while providing dependable switching performance in demanding electrical installations.
This contactor includes integrated damping resistors that reduce peak current during capacitor switching operations. The front-mounted resistor block helps limit energisation surges and improves capacitor bank switching reliability without requiring additional inductances.
With a 110 V AC control coil and suitability for capacitor switching applications up to 690 V AC, the ABB UA63-30-00RA is ideal for industrial power correction systems where reliable switching of capacitive loads is required.
Capacitor switching contactors are designed to control capacitor banks used in power factor correction applications. By managing high transient currents during energisation, specialised contactors such as the ABB UA63-30-00RA help improve switching reliability and protect electrical components.
The UA..RA series combines robust mechanical construction with integrated damping technology, making it suitable for industrial electrical installations requiring frequent capacitor switching operations and dependable performance.
| Manufacturer | ABB |
|---|---|
| Series | UA..RA Capacitor Switching Contactors |
| Model | UA63-30-00RA |
| Product type | Capacitor switching contactor |
| Product ID | 1SBL371024R8400 |
| Main contacts | 3 NO |
| Main poles | 3P |
| Control voltage | 110 V 50 Hz / 110–120 V 60 Hz |
| Rated operational voltage | 690 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated operational power AC-6b | 30 kvar at 230 / 240 V AC, 40 °C |
| Protection rating | IP20 coil terminals / IP10 main terminals |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1 |
| Dimensions (H × W × D) | 150 × 70 × 140.4 mm |
| Weight | approx. 1.35 kg |
This contactor is designed for switching capacitor banks in industrial power factor correction and electrical distribution applications.
The UA63-30-00RA uses a 110 V 50 Hz / 110–120 V 60 Hz AC control circuit.
The ABB UA63-30-00RA is a three-pole contactor with three main normally open contacts.
The contactor includes integrated damping resistors that reduce current peaks when capacitor banks are energised.
The UA63-30-00RA supports a rated operational voltage of up to 690 V AC for the main circuit.
ABB UA..RA capacitor switching contactors are widely used in industrial power correction systems to provide reliable capacitor bank control, reduced switching stress and dependable electrical performance.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...