ABB UA16-30-10 is a three-pole AC-6b capacitor-switching contactor rated at 12.5 kvar at 400–415 V AC, with a 230–240 V AC 50 Hz or 240–260 V AC 60 Hz coil and one normally open auxiliary contact.
£93.11
The ABB UA16-30-10, order code 1SBL181022R8810, is a reliable three-pole capacitor-switching contactor designed for controlling capacitor banks in industrial power factor correction systems. As part of the established ABB UA contactor range, it is suitable for applications where the peak inrush current does not exceed 100 times the capacitor bank’s nominal RMS current.
Capacitor energisation can produce substantial transient currents that place additional stress on conventional switching devices. The UA16-30-10 is designed specifically for AC-6b capacitor-duty operation, providing dependable switching performance and an electrical durability of 100,000 operating cycles under the conditions specified by ABB.
With a rated capacitor-switching capacity of 12.5 kvar at 400–415 V AC and a coil rated for 230–240 V AC at 50 Hz or 240–260 V AC at 60 Hz, the UA16-30-10 is suited to automatic power factor correction panels and industrial reactive-power compensation systems. Its three normally open main contacts, built-in normally open auxiliary contact and screw terminals support straightforward control-panel integration.
Capacitor contactors switch correction stages into and out of an electrical installation to maintain the required power factor. Because capacitor banks can generate high inrush currents during energisation, a contactor selected specifically for AC-6b duty provides more dependable performance than a general-purpose switching device.
The ABB UA16-30-10 is intended for capacitor banks that have been discharged before reconnection, with a maximum residual voltage of 50 V across the terminals. Its dedicated capacitor-duty design makes it suitable for panel builders and industrial engineers creating automatic reactive-power compensation systems.
| Manufacturer | ABB |
|---|---|
| Series | UA Capacitor Contactors |
| Model | UA16-30-10 |
| Order code | 1SBL181022R8810 |
| Product type | Capacitor-switching contactor |
| Utilisation category | AC-6b |
| Main contacts | 3 NO |
| Auxiliary contacts | 1 NO |
| Rated operational power at 230–240 V | 7.5 kvar at 40 °C |
| Rated operational power at 400–415 V | 12.5 kvar at 40 °C |
| Rated operational power at 440 V | 13.7 kvar at 40 °C |
| Rated operational power at 500–550 V | 15.5 kvar at 40 °C |
| Rated operational power at 690 V | 21.5 kvar at 40 °C |
| Rated operational voltage | Up to 690 V AC |
| Rated control voltage at 50 Hz | 230–240 V AC |
| Rated control voltage at 60 Hz | 240–260 V AC |
| Maximum permitted inrush-current peak | 100 times nominal RMS current |
| Electrical durability | 100,000 operating cycles |
| Connection type | Screw terminals |
| Weight | 0.340 kg |
This contactor is designed to switch capacitor banks in industrial and commercial power factor correction systems.
The UA16-30-10 is rated for 12.5 kvar at 400–415 V AC and 40 °C.
Its coil is rated for 230–240 V AC at 50 Hz or 240–260 V AC at 60 Hz.
The contactor has three normally open main contacts and one built-in normally open auxiliary contact.
Yes. ABB specifies that the capacitors must be discharged to a maximum residual terminal voltage of 50 V before they are re-energised.
ABB UA capacitor contactors provide dependable AC-6b switching for panel builders, electrical engineers and industrial operators developing efficient power factor correction and reactive-power compensation 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...