imo mc-y55m400 star delta starter 55kw 109a 400vac coil

Why Choose the IMO MC-Y55M400 Star Delta Starter?

The IMO MC-Y55M400 is a heavy-duty star delta motor starter designed for reliable reduced-current starting of large three-phase induction motors in industrial automation and machinery applications. Manufactured by IMO Precision Controls, this starter reduces electrical inrush current and minimises mechanical stress during motor startup, helping improve equipment lifespan and operational efficiency.

Part of the industrial-grade IMO MC-Y series, the MC-Y55M400 is supplied as an assembled and pre-wired open-frame unit for simplified installation inside industrial control panels. The unit incorporates both mechanical and electrical interlocking between the star and delta contactors to ensure dependable and safe switching performance during operation.

Designed for motors up to 55 kW with a 109 A operational current, this model features a 400 V AC control coil and is ideal for compressors, pumps, conveyors, ventilation systems and industrial process machinery requiring dependable reduced-current motor starting and long-term operational reliability.

Key Advantages

• Reliable star delta starter for industrial motor control applications.
• Suitable for 55 kW three-phase motors.
• Helps reduce motor startup current and mechanical stress.
• 400 V AC control coil for industrial automation systems.
• Mechanical and electrical interlocking for safe operation.
• Pre-wired open-frame construction simplifies installation.

Key Features

• IMO MC-Y series star delta starter.
• 55 kW motor power rating.
• 109 A operational current.
• 400 V AC control coil.
• Integrated electronic timer with inherent dwell period.
• Mechanical and electrical interlocking between contactors.
• DIN rail mountable up to 55 kW.
• Designed to EN60947-4-1 standards.

Technical Specifications

• Manufacturer: IMO Precision Controls
• Series: MC-Y Star Delta Starters
• Model: MC-Y55M400
• Product type: Star delta motor starter
• Motor power rating: 55 kW
• Operational current: 109 A
• Coil voltage: 400 V AC
• Supply type: Three-phase AC
• Construction: Open type, assembled and pre-wired
• Mounting type: DIN rail / panel mounting
• Starter configuration: Star delta
• Mechanical interlock: Included
• Electrical interlock: Included
• Standards: EN60947-4-1
• Associated overload: MCOR-3 series
• EAN: 5059394519372

Reliable Reduced-Current Motor Starting

Star delta starters are widely used for large industrial motors where direct-on-line starting would create excessive inrush current and mechanical stress. By initially starting the motor in a star configuration before switching to delta operation, the starter significantly reduces electrical loading and helps protect motors and connected equipment.

The IMO MC-Y series is engineered for industrial automation systems requiring dependable operation, safe switching and simplified panel integration. The pre-wired open-frame construction and integrated timer functionality help reduce installation time while delivering reliable long-term performance in demanding industrial environments.

Typical Applications

• Industrial pumps and water treatment systems.
• Compressors and HVAC installations.
• Conveyor and material handling systems.
• Industrial fans and ventilation equipment.
• Heavy-duty production machinery.
• OEM automation systems and motor control panels.

Trusted by Industrial Engineers Worldwide

IMO MC-Y star delta starters are widely trusted across industrial automation systems where dependable motor starting, safe operation and long-term reliability are essential.