Schneider Electric CA2KN22B7 Control Relay 24 Vac

Product Description

The SCHNEIDER ELECTRIC CA2KN22B7 is a control relay rated for 24 VAC at 50/60 Hz, configured with a 2NC/2NO contact arrangement. Control relays of this type serve as switching devices in low-voltage control circuits, allowing a low-power signal to open or close higher-current loads within HVAC, industrial, or electrical panel applications. The 2NC/2NO contact configuration provides two normally closed and two normally open poles, giving the installer flexibility in control logic. Weighing 0.39 pounds, this compact relay fits standard DIN-rail or panel-mount enclosures. It is installed by licensed electricians or HVAC controls technicians working on motor control, interlock, or sequencing circuits.

The CA2KN22B7 is suited for residential and light commercial control panel applications where 24 VAC switching is required. Typical installations include HVAC air-handling unit control circuits, electrical panel interlock schemes, and building automation relay logic. The AC 50/60 Hz coil design accommodates both North American and international supply frequencies, making it a versatile choice for controls panels that may use global components. Installers working on DDC or standalone HVAC controls will find this relay appropriate for standard 24 VAC class 2 control wiring.

Key Features

• 2NC/2NO contact arrangement for flexible normally closed and normally open switching logic
• 24 VAC coil voltage rated for standard HVAC class 2 control circuits
• Compatible with both 50 Hz and 60 Hz AC control circuits
• Compact, lightweight design at 0.39 pounds for panel space efficiency
• Sold as individual unit with a package quantity of 1

Compatibility

Designed as an OEM-style replacement control relay for 24 VAC, 50/60 Hz control circuit applications in HVAC, electrical panel, and industrial control systems.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC controls technician. De-energize and lock out the control panel before removing or installing the relay, following applicable NFPA 70 (NEC) lockout/tagout procedures. Verify coil voltage and contact rating against the existing circuit requirements before wiring. Do not exceed the rated contact load for the relay contacts.