ABB EK550-40-11 industrial 4-pole contactor with 800 A AC-1 rating, 220 V 50 Hz / 240 V 60 Hz control coil and integrated auxiliary contacts for industrial power switching applications.
£3,598.38
The ABB EK550-40-11 (Part Number: SK827041-AL) is a heavy-duty 4-pole industrial contactor engineered for switching high-current AC and DC power circuits in demanding industrial, distribution and railway applications. As part of the dependable ABB EK contactor series, it delivers reliable switching performance for resistive and slightly inductive loads while offering exceptional durability and long service life.
Equipped with a 220-230 V AC 50 Hz / 240 V AC 60 Hz control coil, the EK550-40-11 is designed for reliable operation across industrial power systems worldwide. Its robust block-type construction incorporates four normally open main contacts together with one normally open and one normally closed auxiliary contact, making it suitable for demanding control and monitoring applications.
With an 800 A AC-1 rating, 550 A AC-3 rating and a main circuit voltage of up to 1000 V AC, this contactor is ideal for industrial power distribution, resistance heating equipment, railway systems and heavy-duty machinery requiring dependable high-current switching.
The ABB EK550-40-11 is designed to provide dependable switching of large electrical loads in demanding industrial installations. Its heavy-duty contacts and robust construction ensure reliable operation in power distribution systems, heating equipment and heavy industrial machinery where continuous performance is essential.
The contactor is compatible with ABB auxiliary contact blocks and accessories, making it easy to integrate into modern electrical switchboards, OEM equipment and industrial automation systems while providing long-term operational reliability.
| Power | 315 kW |
|---|---|
| Current | 800 A |
| Voltage | 220 V |
| Phase | Three Phase |
| Series | EK Contactors |
| Part number | SK827041-AL |
| Product type | Industrial power contactor |
| Number of poles | 4 |
| Main contacts | 4 NO |
| Auxiliary contacts | 1 NO + 1 NC |
| Rated operational current AC-1 | 800 A |
| Rated operational current AC-3 | 550 A |
| Motor power AC-3 at 415 V | 315 kW |
| Rated operational voltage | 1000 V AC |
| Rated insulation voltage | 1000 V |
| Control voltage | 220 V 50 Hz / 240 V 60 Hz |
| Frequency | 50 / 60 Hz |
| Mounting type | Panel mounting |
| Application type | Distribution and railway switching |
| Maximum electrical switching frequency | 300 cycles per hour AC-3 |
| Dimensions (H × W × D) | approx. 272 × 270 × 225.5 mm |
| Weight | approx. 15.5 kg |
It is designed for switching high-current AC and DC power circuits in industrial, distribution and railway applications.
The control coil operates at 220-230 V AC 50 Hz or 240 V AC 60 Hz.
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, switchboards, railway systems and high-current electrical distribution equipment.
ABB EK contactors are trusted worldwide for dependable high-current switching, long mechanical life and reliable operation across industrial power distribution, railway 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...