Eaton DILA-31 Auxiliary Contactor, 230 V AC Coil, 3 NO + 1 NC, Screw Terminals, 1.6 kW

In industrial control systems, auxiliary contactors are essential for switching auxiliary circuits and signaling functions. The Eaton DILA-31 (276364) provides reliable switching with a 230 V AC coil and a 4-pole contact configuration: 3 normally open (NO) and 1 normally closed (NC) contacts. This allows flexible integration into control logic, interlocking, and status indication circuits.

Who is it for

This contactor is intended for panel builders, system integrators, and maintenance technicians who need a compact, DIN-rail mountable auxiliary contactor for AC control circuits. It suits applications in machine tools, conveyors, HVAC, and other automated equipment where auxiliary contacts are required.

Main features

• Coil voltage: 230 V AC, 50 Hz
• Contact configuration: 3 NO + 1 NC
• Connection: screw terminals for secure wiring
• Rated operational current: 4 A (AC-15, 230 V)
• Rated insulation voltage: 690 V
• Mounting: DIN rail or screw mounting
• Compact dimensions for space-saving installation

Specifications

• Control circuit voltage: 230 V AC
• Control circuit frequency: 50 Hz
• Number of poles: 4
• Number of NO contacts: 3
• Number of NC contacts: 1
• Rated operational current (AC-15, 230 V): 4 A
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Mechanical durability: 20 x 10^6 operations
• Electrical durability: 10 x 10^6 operations
• Operating temperature range: -25 to +60 °C
• Degree of protection: IP20 (terminals)
• Standards: IEC/EN 60947, VDE 0660, UL, CSA

Tips

When wiring, ensure the coil voltage matches the control circuit to prevent coil burnout. Use appropriate wire sizes and torque settings for screw terminals to maintain reliable connections. For inductive loads, consider surge suppression to extend contact life.