imo mc550-s-22110 contactor 3 pole 300kw 550a ac3, 110vac

Why Choose the IMO MC550-S-22110 Contactor?

The IMO MC550-S-22110 is a heavy-duty 3-pole industrial contactor engineered for extremely high-capacity motor switching and industrial power control applications. Manufactured by IMO Precision Controls, this industrial-grade contactor delivers reliable switching performance for large motors, industrial process systems, heavy machinery and high-power automation equipment.

Designed for demanding industrial motor control duties, the MC550-S-22110 provides a substantial 550 A AC-3 operational rating suitable for switching three-phase motors and industrial loads up to 300 kW. Its robust industrial construction ensures dependable long-term operational reliability in high-load industrial environments and critical automation systems.

Featuring a 110 V AC operating coil, 3 normally open main contacts and integrated 2 normally open + 2 normally closed auxiliary contacts, this industrial contactor is ideal for large motor starters, industrial pumping systems, compressors, power distribution systems and heavy-duty automation applications.

Key Advantages

• Heavy-duty 3-pole industrial contactor for high-power motor control systems.
• 550 A AC-3 operational rating suitable for demanding industrial switching applications.
• Supports motors up to approximately 300 kW.
• 110 V AC operating coil compatible with industrial automation systems.
• Integrated 2NO + 2NC auxiliary contacts for signalling and interlocking.
• Robust industrial enclosure engineered for high-load continuous operation.

Key Features

• IMO MC industrial contactor series.
• 3-pole normally open main contacts.
• 550 A AC-3 current rating.
• 300 kW motor power capability.
• 110 V AC coil voltage.
• 2NO + 2NC auxiliary contacts.
• Heavy-duty industrial terminal connections.
• Designed to EN 60947-4-1 standards.

Technical Specifications

• Manufacturer: IMO Precision Controls
• Series: MC Contactors
• Model: MC550-S-22110
• Product type: Heavy-duty industrial contactor
• Main contact configuration: 3 pole normally open
• Auxiliary contacts: 2 NO + 2 NC auxiliary contacts
• Rated operational current: 550 A AC-3
• AC1 current rating: 800 A
• Motor rating: 300 kW
• Coil voltage: 110 V AC
• Frequency: 50 / 60 Hz
• Number of poles: 3P
• Rated insulation voltage: 690 V
• Operating temperature: -25 to +55 °C
• Compatible overload relay: IMO MCOR-7 series
• Standards: EN 60947-4-1

Reliable High-Power Industrial Switching

Industrial contactors such as the IMO MC550-S-22110 are widely used in high-power automation systems to safely switch large motors, compressors, pumps and industrial electrical loads. Their robust construction and extremely high switching capacity make them ideal for demanding industrial environments and continuous-duty applications.

The IMO MC series is engineered for dependable operational performance and long service life in industrial environments where reliable switching performance is critical. Integrated auxiliary contacts simplify signalling and interlocking functions while supporting seamless integration into industrial automation and motor control systems.

Typical Applications

• Large industrial motor starters.
• Industrial pumping systems.
• Heavy-duty compressors and process equipment.
• Mining and material handling systems.
• Industrial power distribution equipment.
• Heavy industrial automation and production systems.

Trusted by Heavy Industry and Automation Engineers

IMO heavy-duty industrial contactors are widely trusted in demanding automation systems where dependable high-current switching, reliable operational performance and long-term industrial durability are essential.