Why Choose the ABB EK550-40-11 230-240 V 50 Hz Contactor?
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.
Key Advantages
- Heavy-duty 4-pole industrial contactor for demanding applications.
- 800 A AC-1 switching capacity for high-current industrial loads.
- 230-240 V AC 50 Hz control coil.
- Suitable for AC and DC switching applications.
- Supplied with 1 NO and 1 NC auxiliary contact.
- Designed for industrial power distribution and railway applications.
Key Features
- ABB EK contactor series.
- 4 normally open (4 NO) main contacts.
- 1 normally open + 1 normally closed auxiliary contact.
- 800 A rated operational current (AC-1).
- 550 A rated operational current (AC-3).
- 230-240 V AC 50 Hz control coil.
- Heavy-duty block construction.
- Main circuit bar terminals for secure high-current connections.
Reliable High-Current Power 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.
Typical Applications
- Industrial power distribution systems.
- Railway electrical installations.
- Resistance heating equipment.
- Large industrial switchboards.
- Heavy-duty machinery.
- OEM electrical control panels.
