ABB UA110-30-11RA 1SFL451024R8011 three pole capacitor switching contactor with 220–230 V AC coil, auxiliary contacts and 70 kvar reactive power rating.
£640.64
The ABB UA110-30-11RA 1SFL451024R8011 is a robust three-pole capacitor switching contactor designed for reliable control of power factor correction capacitors in industrial electrical systems. Part of ABB’s UA capacitor contactor series, it is specifically developed for applications where high inrush currents occur during capacitor switching.
This contactor features a 220–230 V AC 50 Hz control coil, with a 230–240 V AC 60 Hz operating range, and includes integrated auxiliary contacts for additional control and monitoring functions. Its specialised capacitor switching design allows reliable operation where peak currents can reach up to 100 times the nominal RMS current.
With a rated reactive power capability of 70 kvar at 400 V AC, three main normally open contacts and 1 NO + 1 NC auxiliary contacts, the UA110-30-11RA is suitable for industrial power factor correction systems and capacitor bank control applications.
ABB UA series capacitor contactors are designed specifically for switching capacitor banks, using specialised contact arrangements to manage the high transient currents generated when capacitors are energised.
The UA110-30-11RA provides a dependable solution for industrial power factor correction systems, helping maintain efficient electrical installations and reliable capacitor bank operation.
| Manufacturer | ABB |
|---|---|
| Series | UA Capacitor Switching Contactors |
| Model | UA110-30-11RA |
| Manufacturer part number | 1SFL451024R8011 |
| Product type | Capacitor switching contactor |
| Number of poles | 3 |
| Main contacts | 3 NO |
| Auxiliary contacts | 1 NO + 1 NC |
| Rated control voltage | 220–230 V AC at 50 Hz |
| Rated reactive power | 70 kvar at 400 V AC |
| Rated insulation voltage | Up to 1000 V AC |
| Conventional thermal current | 160 A |
| Rated operational current AC-1 | 145 A at 690 V |
| Mounting type | Panel mounting |
| Protection rating | IP20 coil terminals |
| Dimensions (W × H × D) | approx. 102 × 170 × 155.6 mm |
| Weight | approx. 2 kg |
The ABB UA110-30-11RA is a capacitor switching contactor used for controlling power factor correction capacitor banks in industrial electrical systems.
The UA110-30-11RA is rated for capacitor switching applications up to 70 kvar at 400 V AC.
The contactor operates with a 220–230 V AC 50 Hz control supply and 230–240 V AC 60 Hz.
The contactor includes 1 normally open and 1 normally closed auxiliary contact for additional control functions.
The contactor is typically installed inside industrial switchboards and capacitor bank control panels.
ABB UA capacitor contactors are widely used in industrial power correction systems to provide reliable capacitor switching and efficient electrical control.
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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...