ABB 1SFL431022R8511 UA95-30-11-85 three-phase capacitor contactor with 65 kvar rating at 400 V AC and 380–400 V AC coil designed for power factor correction systems.
£601.30
The ABB 1SFL431022R8511 is a robust and reliable three-phase capacitor switching contactor designed for power factor correction systems, capacitor banks and industrial electrical distribution applications. As part of the ABB UA capacitor contactor series, the UA95-30-11-85 provides dependable switching of capacitive loads while managing the high inrush currents generated during capacitor energisation.
This capacitor contactor features integrated damping resistors and early-make auxiliary contacts to reduce switching stress and improve system reliability. Its dedicated capacitor switching design helps extend the service life of power factor correction equipment in demanding industrial installations.
With a rated reactive power capability of 65 kvar at 400 V AC, 50 Hz, three main normally open contacts, one normally open auxiliary contact, one normally closed auxiliary contact and a 380–400 V AC coil, the ABB UA95-30-11-85 is suitable for automatic capacitor bank systems and industrial power factor correction applications.
Capacitor contactors such as the ABB UA95-30-11-85 are designed to control capacitor banks used for reactive power compensation. Their specialised construction reduces switching stress and helps maintain efficient operation of industrial electrical networks.
The ABB UA series provides engineers and panel builders with dependable solutions for automatic power factor correction equipment. The integrated damping system and auxiliary contact arrangement allow reliable integration into modern industrial control systems.
| Manufacturer | ABB |
|---|---|
| Series | UA Capacitor Contactors |
| Model | 1SFL431022R8511 |
| Product designation | UA95-30-11-85 |
| Product type | Capacitor switching contactor |
| Application | Power factor correction / capacitor switching |
| Number of poles | 3 |
| Main contacts | 3 NO |
| Auxiliary contacts | 1 NO + 1 NC |
| Rated reactive power | 65 kvar at 400 V AC, 50 Hz |
| Control voltage | 380–400 V AC |
| Control voltage at 60 Hz | 400–415 V AC |
| Frequency | 50 / 60 Hz |
| Maximum permissible peak current | 30 times nominal RMS current |
| Rated insulation voltage | 1000 V |
| Mounting type | Panel mounting |
| Connection type | Screw terminals |
| Dimensions (H × W × D) | approx. 148 × 102 × 123.5 mm |
| Weight | approx. 2 kg |
The ABB 1SFL431022R8511 is a capacitor contactor used for switching capacitor banks in power factor correction systems.
The ABB UA95-30-11-85 supports capacitor loads up to approximately 65 kvar at 400 V AC and 50 Hz.
The contactor operates with a 380–400 V AC 50 Hz control coil.
The ABB UA95-30-11-85 includes 1 normally open and 1 normally closed auxiliary contact for control and monitoring purposes.
The ABB UA95-30-11-85 is typically installed inside power factor correction panels and industrial electrical distribution systems.
ABB capacitor contactors are widely used by electrical engineers, panel builders and industrial manufacturers to deliver reliable reactive power management and efficient power factor correction solutions.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...