ABB EH contactors are magnetic contactors used in industrial automation and motor control applications. They are designed to handle high currents and provide reliable switching for motors and other electrical loads. The EH series includes models such as EH-100, EH-145, EH-175, EH-210, EH-260, EH-370, EH-550, EH-700, EH-800, and EH-1200, covering a wide range of current ratings and power capacities
Key Features
High Current Capacity: Models like EH-370 and EH-1200 can handle currents up to 550A and higher, suitable for large motors
Coil Voltage Options: Coils are marked at terminals A1 and A2, and operate within 85–110% of the rated control voltage
Mounting Flexibility: Contactors can be mounted horizontally, vertically, or suspended, and come with mounting kits including damping devices
ThreePole Contacts: Many EH contactors feature three mobile contacts and six fixed contacts for robust switching
Durability and Safety: Designed for industrial environments, with IP20 protection for auxiliary contacts and coil terminals
Retrofit and Repair
ABB EH contactors can be retrofitted to extend their service life. Instead of replacing the entire unit, worn contacts or coils can be replaced, which reduces costs and industrial waste while maintaining operational reliability Repair services,
Purchasing and Warranty
New ABB EH contactors are available from distributors like SPW Industrial, with warranties typically covering one year and options for returns within 30 days for non-defective items
Applications
EH contactors are widely used in:
Motor control circuits
Industrial automation systems
Equipment requiring high-current switching
Retrofit projects to extend the life of existing installations
Summary
ABB EH contactors provide robust, flexible, and repairable solutions for industrial motor control. They are suitable for both new installations and retrofitting older systems, offering a balance of high performance, safety, and sustainability. Users can select models based on current rating, coil voltage, and mounting requirements, with options for repair or replacement to optimize cost and equipment longevity.