ABB SK827041-AM EK550-40-11 industrial 4-pole power contactor with 230-240 V AC coil, 800 A AC-1 rating and 550 A AC-3 rating for industrial power switching applications.
£3,598.38
The ABB EK550-40-11 (Part Number: SK827041-AM) is a heavy-duty 4-pole industrial contactor engineered for switching high-current AC and DC power circuits in demanding industrial, power distribution and railway applications. As part of the proven ABB EK contactor series, it delivers dependable switching performance, exceptional durability and long operational life for high-power installations.
This version is equipped with a 230-240 V AC 50 Hz control coil, making it ideal for industrial control systems operating on standard European mains supplies. Its robust block-type construction incorporates 4 normally open main contacts together with 1 normally open and 1 normally closed auxiliary contact, allowing seamless integration into complex switching and monitoring circuits.
With an impressive 800 A AC-1 rating, 550 A AC-3 rating and a maximum operational voltage of 1000 V AC, the EK550-40-11 is ideally suited to industrial switchboards, resistance heating systems, railway installations and heavy-duty electrical distribution equipment requiring reliable high-current switching.
The ABB EK550-40-11 is designed to switch high-current electrical loads safely and reliably in demanding industrial environments. Its heavy-duty contacts and robust construction provide dependable operation in power distribution systems, heating equipment and large industrial installations where long service life and consistent performance are essential.
Compatible with ABB auxiliary contact blocks and accessories, the EK series offers flexibility for OEM machinery, industrial control panels and electrical switchboards while maintaining outstanding reliability under continuous operation.
| Power | 280 kW |
|---|---|
| Current | 800 A |
| Voltage | 240 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | EK Block Contactors |
| Product code | SK827041-AM |
| Product type | Industrial power contactor |
| Number of poles | 4 |
| Main contacts | 4 NO |
| Auxiliary contacts | 1 NO + 1 NC |
| Control voltage | 230-240 V AC 50 Hz |
| Rated operational voltage | 1000 V |
| Rated operational current AC-1 | 800 A |
| Rated operational current AC-3 | 550 A |
| Rated operational power AC-3 at 400 V | 280 kW |
| Protection rating | IP20 |
| Mounting type | Panel mounting |
| Dimensions (H × W × D) | approx. 272 × 270 × 225.5 mm |
| Weight | approx. 15.5 kg |
| Standards | IEC 60947 |
It is designed for switching high-current AC and DC power circuits in industrial, power distribution and railway applications.
The control coil operates on a 230-240 V AC 50 Hz supply.
The contactor is rated for 800 A AC-1 and 550 A AC-3 applications.
It features 4 normally open main contacts together with 1 normally open and 1 normally closed auxiliary contact.
It is commonly installed in industrial control panels, electrical switchboards, railway systems and high-current power distribution equipment.
ABB EK contactors are trusted worldwide for dependable high-current switching, robust construction and long service life across industrial power distribution, railway infrastructure and heavy-duty electrical applications.
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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...