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Transparent rectangular relay with screw terminals and DIN rail clips

Schneider Electric

Schneider Electric CA3KN22BD 24V DC 10A 2NO/2NC control relay

SKU CH-DD0V-CZ4E6

An IEC control relay with 2NO/2NC contacts, 24 V DC coil and 10 A rating for DIN-rail or surface mounting

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Controls 10 A AC loads with 2NO/2NC contacts
  • Switches 2 A DC at 125/250/600 V
  • Operates on 24 V DC coil with 3 W consumption
  • Mounts on DIN rail or surface in 1.77 × 2.24 × 2.28 in
  • Silver-nickel contacts rated IP2X up to 122 °F

IEC Control Relay for 24 V DC systems

This Schneider Electric CA3KN22BD relay switches loads up to 10 A on AC circuits and 2 A on DC circuits. It mounts on DIN rail or flat surfaces using screw-clamp terminals. The transparent housing lets you verify contact position at a glance. It suits automation panels, lighting circuits and small-motor starters.

Replaces older IEC relays with lower contact ratings

If your existing relay is rated below 10 A at 120 V AC or 2 A at 125 V DC, this unit provides a direct step up in switching capacity. The 3 W coil draws minimal power from the 24 V DC supply. The change is worth it when contact wear or nuisance trips indicate the old relay is undersized for the load.

Check coil voltage and contact configuration

Verify that your control circuit supplies 24 V DC and that the application needs two normally-open and two normally-closed contacts. Confirm the panel can accommodate a 2.24 in depth, 2.28 in height and 1.77 in width envelope. Ensure the operating ambient stays below 122 °F and that IP2X protection meets the enclosure requirements.

Highlights

  • Controls 10 A AC loads with 2NO/2NC contacts
  • Switches 2 A DC at 125/250/600 V
  • Operates on 24 V DC coil with 3 W consumption
  • Mounts on DIN rail or surface in 1.77 × 2.24 × 2.28 in
  • Silver-nickel contacts rated IP2X up to 122 °F

Specifications

BrandSCHNEIDER ELECTRIC
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Will the 1.77 in wide body fit on a standard DIN rail?

Yes, the relay mounts on DIN rail or surface with the 1.77 in width matching standard rail spacing.

Which screw-clamp terminals accept the coil and contact wires?

All connections use screw-clamp terminals; strip wire, insert into the marked coil and contact openings, and tighten each screw fully.

How often should the silver-nickel contacts be checked?

Inspect the silver-nickel contacts during routine panel maintenance; replace the relay if contact resistance rises or pitting appears.

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