Eaton DILER-31 mini-contactor 3NO+1NC 230V AC 50Hz / 240V AC 60Hz 051768

The Eaton DILER-31 mini contactor is a compact switching device engineered for reliable control of three-phase motors and resistive loads up to 4 kW. Its 3 normally open main poles and 1 normally closed auxiliary contact provide flexible circuit integration, while the AC coil accepts both 230 V 50 Hz and 240 V 60 Hz supplies for worldwide compatibility.

Advantages

Space-saving DIN rail or screw mounting, long mechanical life of 10 million operations, and robust screw terminals ensure secure connections in industrial environments. The contactor meets IEC/EN 60947, VDE 0660, UL, and CSA standards, delivering proven performance in demanding applications.

Suitable for

• Motor starting and stopping in conveyors, pumps, and fans
• Heating and lighting load switching
• Control panel builders requiring compact, reliable contactors
• Applications with 230 V / 240 V AC control circuits

Key specifications

• Rated operational current: 20 A (AC-1) / 9 A (AC-3) at 400 V
• Rated operational power: 4 kW (AC-3, 400 V)
• Coil voltage: 230 V AC 50 Hz / 240 V AC 60 Hz
• 3 main poles (NO) + 1 auxiliary contact (NC)
• Rated insulation voltage: 690 V
• Protection degree: IP20
• Operating temperature: -25 °C to +50 °C

Recommendations

For optimal performance, pair with Eaton motor protection circuit breakers and use appropriate overload relays. Ensure proper ventilation in enclosures and verify coil voltage compatibility before installation.