ABB UA30-30-10 is a three-pole capacitor-switching contactor with a 24 V AC 50/60 Hz coil, three normally open main contacts and one normally open auxiliary contact for power-factor correction systems.
£179.65
The ABB UA30-30-10, product code 1SBL281022R8110, is a robust three-pole capacitor-switching contactor designed for controlling capacitor banks in industrial power-factor correction systems. Its application-specific design supports dependable switching of capacitive loads where high transient currents can occur during energisation.
Part of the established ABB UA contactor series, the UA30-30-10 combines three normally open main contacts with one built-in normally open auxiliary contact. The compact block-type construction supports integration into capacitor-control panels and can be extended with compatible ABB auxiliary contact blocks and accessories.
This exact model features a 24 V AC 50/60 Hz control coil and is designed for power circuits with operational voltages up to 690 V AC. Screw-terminal connections provide secure wiring for industrial power-factor correction and reactive-power compensation equipment.
Capacitor contactors are designed to switch capacitive loads used for reactive-power compensation and power-factor correction. These applications can produce significant transient currents when capacitor stages are energised, requiring a contactor specifically selected for the characteristics of the capacitor bank.
The ABB UA series provides application-specific switching for capacitor installations. The built-in auxiliary contact can support signalling or control-system interlocking, while the block construction enables straightforward integration into automatic power-factor correction panels.
| Manufacturer | ABB |
|---|---|
| Series | UA30 |
| Model | UA30-30-10 |
| Product code | 1SBL281022R8110 |
| Product type | Capacitor-switching contactor |
| Main contacts | 3 NO + 0 NC |
| Auxiliary contacts | 1 NO + 0 NC |
| Control voltage | 24 V AC |
| Control frequency | 50/60 Hz |
| Rated operational voltage | Up to 690 V AC |
| Terminal type | Screw terminals |
| Construction | Three-pole block contactor |
This contactor is designed for switching capacitor banks in industrial and commercial power-factor correction systems.
The UA30-30-10 operates from a 24 V AC control supply at 50/60 Hz.
This model has three normally open main contacts for switching three-phase capacitor circuits.
Yes. The UA30-30-10 includes one built-in normally open auxiliary contact for signalling or control functions.
The UA30-30-10 is specifically designed for capacitor-bank switching; contactor selection should always be based on the load type and the capacitor system’s switching requirements.
ABB UA contactors are used by panel builders and electrical engineers to provide dependable capacitor-bank switching in industrial and commercial power-factor correction systems.
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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...