ABB UA30-30-10 is a three-pole capacitor-switching contactor with a 110 V AC 50 Hz or 110–120 V AC 60 Hz coil, three normally open main contacts and one normally open auxiliary contact.
£179.65
The ABB UA30-30-10, product code 1SBL281022R8410, is a robust three-pole capacitor-switching contactor designed for controlling capacitor banks in industrial power-factor correction systems. Its application-specific construction supports dependable switching of capacitive loads where substantial 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. Its compact block design supports installation in capacitor-control panels and can be extended with compatible ABB auxiliary contact blocks and accessories.
This exact variant features a control coil rated at 110 V AC at 50 Hz and 110–120 V AC at 60 Hz. With an operational voltage of up to 690 V AC, it is suitable for industrial and commercial reactive-power compensation equipment.
Capacitor contactors switch capacitive loads used for reactive-power compensation and power-factor correction. These installations can produce substantial transient currents when capacitor stages are energised, making correct contactor selection essential for reliable system operation.
The ABB UA series provides application-specific switching for capacitor installations. Its 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 | 1SBL281022R8410 |
| Product type | Capacitor-switching contactor |
| Main contacts | 3 NO + 0 NC |
| Auxiliary contacts | 1 NO + 0 NC |
| Control voltage at 50 Hz | 110 V AC |
| Control voltage at 60 Hz | 110–120 V AC |
| 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 coil is rated for 110 V AC at 50 Hz or 110–120 V AC at 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; selection should be based on the capacitor system’s voltage, reactive-power rating and switching conditions.
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...