Schneider Electric CA2SK20B7 Control Relay 2NO 24V Din Rail

Product Description

The SCHNEIDER ELECTRIC CA2SK20B7 is a 2NO (two normally open) control relay designed for AC control circuits operating at 24 volts, 50/60 Hz. It mounts on standard DIN rail and uses screw terminals for field wiring, making it a straightforward drop-in component for panel builders and industrial electricians. The relay measures 2.7 inches in height, 2.3 inches in width, and 1.3 inches in length, fitting cleanly into compact enclosures. Rated to IP2X for basic finger-safe protection, this relay is built for light industrial and commercial control panel applications where reliable switching of low-voltage AC control signals is required.

This relay is suited for use in commercial HVAC control panels, building automation systems, and industrial machine control circuits that rely on 24 VAC switching logic. Its DIN rail mount design makes it compatible with standard modular panel layouts. The operating temperature range of -4 degrees F to 122 degrees F supports installations in both indoor mechanical rooms and light-duty outdoor enclosures. Licensed electricians and panel assembly technicians are the primary installers for this type of relay.

Key Features

• 2NO contact configuration for standard switching applications
• 24 VAC coil voltage at 50/60 Hz for compatibility with common control circuit power supplies
• DIN rail mount for fast, tool-minimal panel installation
• Screw terminal connections for secure, field-serviceable wiring
• IP2X ingress protection rating for basic finger-safe operation
• Meets multiple international standards including UL Listed, CSA, IEC 60947, and VDE 0660

Compatibility

Designed as an OEM-style replacement or new-install control relay for 24 VAC DIN rail-based control panels in commercial HVAC, building automation, and light industrial applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with applicable NEC requirements and local codes. De-energize the control panel completely before removing or inserting the relay on the DIN rail. Verify coil voltage matches the control circuit supply before energizing. Screw terminals should be tightened to the panel manufacturer's specified torque range as indicated on the enclosure documentation.