EATON 744-A-0401

In industrial control panels and motor control centers, the EATON 744-A0401 contactor reliably switches three-phase loads up to 18.5 kW at 400 V AC. Its 24 V DC coil integrates seamlessly with PLC outputs and safety circuits, while the 1NO auxiliary contact provides status feedback for interlocking and monitoring. DIN rail or screw mounting simplifies installation in compact enclosures.

Key specifications

• 3-pole main contacts rated 40 A (AC-3, 400 V)
• Coil voltage: 24 V DC
• 1 normally open (NO) auxiliary contact
• Rated operational voltage up to 690 V AC
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Mechanical durability: >10 million operations
• Electrical durability (AC-3): >1.5 million operations
• Operating temperature: -25 °C to +60 °C
• Protection degree: IP20
• Standards: IEC/EN 60947, UL, CSA

Why choose it

This contactor is engineered for demanding industrial environments, offering high electrical and mechanical endurance to minimize downtime. Its wide voltage rating and compliance with international standards ensure compatibility across global installations. The integrated auxiliary contact reduces wiring effort and enhances control system reliability.

Ideal use cases

• Motor starting and stopping in conveyor systems, pumps, and fans
• Heating and lighting load switching in commercial buildings
• Integration into PLC-based automation panels
• Replacement for obsolete contactors in existing machinery

Good to know

The contactor mounts on standard 35 mm DIN rail or with screws, and screw terminals accept a wide range of conductor sizes. It is suitable for use in pollution degree 3 environments and can be installed at altitudes up to 2000 m without derating. Always verify coil voltage and auxiliary contact configuration before ordering replacements.