Schneider Electric CA2KN31B7 Control Relay 24V Ac

Product Description

The SCHNEIDER ELECTRIC CA2KN31B7 is a 3NO/NC control relay designed for AC control circuits operating at 24 volts, 50/60 Hz. It mounts to standard DIN rail and uses screw terminals for field wiring. With a minimum sensed amperage of 5 milliamps, it is suited for low-current sensing applications in industrial and commercial control panels. Operating temperature range spans -13 degrees F to 122 degrees F, making it appropriate for a wide range of installation environments. Licensed electricians and industrial controls technicians are the primary installers for this type of relay in motor control centers, automation panels, and building automation systems.

The CA2KN31B7 is used in AC control circuits where a reliable 3NO/NC contact configuration is required. Typical applications include motor starters, interlocking circuits, and machine control logic in light industrial and commercial facilities. It is also found in building automation and HVAC control panels where DIN rail-mounted relay logic is standard practice. Its IP2X ingress protection rating and broad certification base make it suitable for enclosed panel installations meeting international and North American standards.

Key Features

• 3NO/NC contact configuration for versatile control circuit wiring
• 24 volts AC coil voltage at 50/60 Hz for compatibility with common control transformer outputs
• DIN rail mount with screw terminals for fast, secure panel installation
• Minimum sensed amperage of 5 milliamps supports low-current logic circuits
• Operating range of -13 degrees F to 122 degrees F suits enclosed panel environments
• IP2X ingress protection rating for use in standard enclosed enclosures

Compatibility

Designed as an OEM-style replacement or new-installation control relay for DIN rail-based AC control panels operating at 24 volts, 50/60 Hz.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and applicable local codes. De-energize the control panel and verify zero voltage with a meter before handling or wiring the relay. Screw terminals should be tightened to the panel manufacturer or terminal block torque guidelines using an appropriate screwdriver. Do not exceed the rated control circuit voltage or the specified operating temperature range.