ABB UA26-30-10-81 1SBL241022R8110 is a 3-pole capacitor switching contactor with 3 NO main contacts, 1 NO auxiliary contact, a 20 kvar AC-6b rating at 400 V and a 24 V AC 50/60 Hz coil.
£134.96
The ABB UA26-30-10-81, product ID 1SBL241022R8110, is a 3-pole capacitor switching contactor designed for controlling capacitor banks in industrial power factor correction systems. As part of the ABB UA contactor range, it is specifically designed for capacitor switching applications where peak inrush currents are less than or equal to 100 times the nominal RMS current.
The UA26-30-10-81 features three normally open main contacts and one normally open built-in auxiliary contact. Under AC-6b duty, it is rated for capacitor banks up to 20 kvar at 400 V, with a maximum accepted peak current of 3 kA. The capacitors must be discharged to a residual terminal voltage of no more than 50 V before being re-energised.
Its AC-operated laminated magnet circuit uses a 24 V AC coil at 50/60 Hz. The block-type construction, screw terminals and compact 90 × 54 × 93.6 mm dimensions make the UA26-30-10-81 suitable for installation within power factor correction panels and other industrial capacitor switching assemblies.
Capacitor switching places demanding electrical stresses on contactors because energising a capacitor bank can produce high transient inrush currents. The ABB UA26-30-10-81 is specifically designed for switching capacitor banks where the peak inrush current does not exceed 100 times the nominal RMS current, providing a dedicated solution for industrial power factor correction systems.
When used under the specified operating conditions, the capacitors must be discharged before they are re-energised, with a maximum residual voltage of 50 V at their terminals. The UA26-30-10-81 provides an electrical durability of 100,000 operating cycles under these capacitor switching conditions.
| Manufacturer | ABB |
|---|---|
| Series | UA |
| Model | UA26-30-10-81 |
| Product ID | 1SBL241022R8110 |
| Product type | 3-pole capacitor switching contactor |
| Number of poles | 3 |
| Main contacts | 3 NO |
| Auxiliary contacts | 1 NO |
| Control voltage | 24 V AC 50/60 Hz |
| AC-6b rated operational power | 20 kvar at 400 V and ≤ 40 °C |
| Maximum accepted peak current | 3 kA |
| Rated operational voltage | 690 V |
| Rated insulation voltage | 1000 V IEC / 600 V UL/CSA |
| Rated impulse withstand voltage | 8 kV |
| Maximum residual capacitor voltage before re-energisation | 50 V |
| Protection rating | IP20 at coil terminals |
| Terminal type | Screw terminals |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1 |
| Dimensions (H × W × D) | 90 × 54 × 93.6 mm |
| Net weight | 0.6 kg |
The ABB UA26-30-10-81 is a 3-pole contactor designed for switching capacitor banks, particularly in industrial power factor correction and reactive power compensation systems.
The UA26-30-10-81 has an AC-6b rated operational power of 20 kvar at 400 V at an ambient temperature of up to 40 °C.
The contactor uses a 24 V AC coil at 50/60 Hz.
The UA26-30-10-81 has three normally open main contacts and one built-in normally open auxiliary contact.
Yes. The capacitors must be discharged to a residual terminal voltage of no more than 50 V before being re-energised by the contactor.
ABB UA contactors are designed specifically for capacitor switching applications, providing dependable control of capacitor banks and supporting industrial power factor correction systems where high switching inrush currents must be managed reliably.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...