Schneider Electric CA4KN22BW3 Control Relay 2NC/2NO 24V

Product Description

The SCHNEIDER ELECTRIC CA4KN22BW3 is a DC low-consumption control relay configured with a 2NC/2NO contact arrangement and a 24 VDC control circuit. It is designed for use in low-voltage control panels, automation systems, and building automation or HVAC control applications where reliable switching of control signals is required. The compact form factor and low-coil-consumption design make it well suited for panel environments where heat generation and space are both concerns. Licensed electricians and controls technicians are the primary installers of this device.

This relay is used in residential and light commercial control applications where a 24 VDC signal must switch multiple circuit paths simultaneously. The 2NC and 2NO contact configuration allows both normally closed and normally open switching in a single device, reducing component count in a panel. It is appropriate for integration into automation panels, HVAC control boards, and low-voltage switching circuits requiring DC coil operation.

Key Features

• 2NC/2NO contact arrangement allows simultaneous normally closed and normally open switching
• 24 VDC control circuit with DC low-consumption coil design reduces panel heat load
• Compact dimensions — 2.6 inches tall, 2.4 inches wide, 1.9 inches in length — fit tight panel layouts
• Lightweight at 0.48 pounds, minimizing panel weight impact
• Single-unit packaging with no minimum order requirement beyond one unit

Compatibility

Designed as an OEM-style replacement or upgrade control relay for low-voltage DC control circuits in automation panels and HVAC control systems requiring 24 VDC coil operation with 2NC/2NO contact configuration.

Installation Notes

Installation should be performed by a licensed electrician or qualified controls technician in accordance with applicable NEC requirements. De-energize and lock out the control panel before installing or replacing this relay. Verify that the control circuit supply voltage matches the 24 VDC coil rating before energizing. Confirm contact wiring against the panel schematic to ensure normally closed and normally open poles are connected to the correct circuit paths.