ABB 1SBL351024R8600 UA50-30-00RA capacitor duty contactor with 400-415 V AC coil and 40 kvar capacitor switching capability for industrial power factor correction systems.
£411.17
The ABB 1SBL351024R8600 is a robust and reliable capacitor duty contactor designed specifically for switching capacitor banks in industrial power factor correction systems. As part of the ABB UA50-30-00RA capacitor switching contactor series, it is engineered to handle high inrush currents associated with capacitor energisation while providing dependable performance in demanding electrical installations.
This contactor includes integrated damping resistors that help limit peak currents when capacitor banks are energised. The UA series uses a block contactor design with three main poles and is supplied ready for capacitor switching applications without the need for additional inductances.
With a 400–415 V AC coil supply at 50 Hz, 415–440 V AC at 60 Hz, a three-pole main contact configuration and a capacitor switching capability of approximately 40 kvar at 400–415 V AC, the ABB UA50-30-00RA is ideal for automatic power factor correction systems and industrial capacitor bank control.
Capacitor duty contactors such as the ABB UA50-30-00RA are designed to safely switch capacitor banks where very high transient currents can occur during energisation. The integrated damping resistors reduce current peaks and help improve the reliability and service life of power factor correction equipment.
The ABB UA series provides a dedicated solution for industrial electrical systems requiring efficient reactive power compensation, improved energy performance and reliable automatic capacitor bank control.
| Manufacturer | ABB |
|---|---|
| Series | UA Capacitor Duty Contactors |
| Model | UA50-30-00RA |
| Part number | 1SBL351024R8600 |
| Product type | Capacitor duty contactor |
| Application | Capacitor switching / power factor correction |
| Rated control voltage | 400–415 V AC at 50 Hz |
| Main contacts | 3 NO |
| Auxiliary contacts | None built-in |
| Rated operational voltage | 690 V AC |
| Capacitor rating | 40 kvar at 400–415 V AC |
| Rated operational power AC-3 | 25 kW at 415 V AC |
| Terminal type | Screw terminals |
| Mounting type | DIN rail / screw mounting |
| Protection rating | IP20 |
| Dimensions (H × W × D) | approx. 150 × 70 × 140.4 mm |
| Weight | approx. 1.35 kg |
The ABB 1SBL351024R8600 is a capacitor duty contactor used for switching capacitor banks in industrial power factor correction systems.
The ABB UA50-30-00RA supports capacitor switching applications up to approximately 40 kvar at 400–415 V AC.
The contactor operates with a 400–415 V AC coil supply at 50 Hz and 415–440 V AC at 60 Hz.
The UA50-30-00RA features three normally open main contacts.
The contactor is typically installed inside automatic power factor correction panels, switchboards and industrial electrical systems.
ABB UA capacitor duty contactors are trusted by electrical engineers and industrial system builders to provide reliable capacitor switching, improved power factor control and long-term operational 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...
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...