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Transparent rectangular IEC control relay with screw-clamp terminals and DIN-rail mounting tabs

Schneider Electric

Schneider Electric CA2KN40U7 4NO 240VAC 10A IEC Control Relay

SKU CH-1KHR-HG0CS

IEC control relay with four normally-open contacts rated at 10 A and a 240 V AC coil for DIN-rail or surface mounting

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Controls four circuits with 10 A AC contacts
  • Coil operates on 240 V AC at 50/60 Hz
  • Mounts on DIN rail or flat surface
  • Screw-clamp terminals give secure wiring
  • IP2X rating protects against finger contact

Compact IEC Relay for Industrial Panels

The Schneider Electric CA2KN40U7 is a 4-pole normally-open control relay rated for 10 amperes at 240 volts AC. It suits panel builders and maintenance engineers who need reliable switching in automation cabinets, motor starters or lighting circuits. The transparent housing allows visual contact inspection without removing the cover.

DIN-Rail Mount with Screw-Clamp Terminals

The relay body measures 1.77 inches wide by 2.28 inches high by 2.24 inches deep and fits standard DIN rails or surface-mount brackets. Screw-clamp connections accept solid or stranded wires for secure termination in vibration-prone environments. An IP2X rating guards against finger contact with live parts during routine checks.

Low Heat and Quiet Operation at 4.5 VA

The coil draws 4.5 volt-amperes at 50 or 60 hertz, keeping temperature rise minimal inside enclosed cabinets. No moving parts beyond the contacts means silent switching during normal duty cycles. The unit operates up to 122 degrees Fahrenheit, so standard panel ventilation is sufficient for continuous use.

Highlights

  • Controls four circuits with 10 A AC contacts
  • Coil operates on 240 V AC at 50/60 Hz
  • Mounts on DIN rail or flat surface
  • Screw-clamp terminals give secure wiring
  • IP2X rating protects against finger contact

Specifications

BrandSchneider Electric
ModelCA2KN40U7
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What coil voltage does the CA2KN40U7 use and what AC contact rating does it provide at that voltage?

The relay operates on a 240 V AC coil and switches up to 10 A at 240 V AC across its four normally-open contacts.

What are the exact dimensions for DIN-rail and surface mounting?

Body measures 1.77 in wide, 2.28 in high and 2.24 in deep; it mounts on standard DIN rail or directly on a panel using the integral mounting feet.

How is the wiring connected and which step is most often missed?

Connections use screw-clamp terminals — strip each wire, insert fully, tighten the screw, then verify the coil is energised at 240 V AC 50/60 Hz before assuming the contacts have changed state.

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