Technical Parameters
Electrical
Rated control supply voltage: 220 V DC
Contact configuration: 4 changeover contacts (4 C/O — SPDT)
Rated switching voltage: Up to 250 V AC
Rated current per contact: Up to 6 A
Operational current examples:
AC circuits up to 6 A at ~230 V AC
Control circuit switching at lower voltages
Insulation: Designed for typical industrial control circuit voltages
Contact indicator: Integrated LED shows coil energization
Mechanical & Environmental
Mounting: Pluggable into CR‑M series socket with snap‑on DIN‑rail installation (via socket)
Test / manual actuation: Built‑in test button for manual contact actuation and locking
Operating temperature range: –40 °C to +70 °C (approx.)
Storage temperature range: –40 °C to +85 °C (approx.)
Protection: Basic enclosure protection around the relay body (typically IP40 when plugged in/on socket)
Physical Dimensions
Width: Approx. 21.2 mm
Height: Approx. 35.6 mm
Depth: Approx. 27.5 mm
Weight: ~0.033 kg
Typical Applications
Interface relay between control logic (e.g., PLC outputs) and field devices
Switching and isolation of multiple circuits from a common control signal
Industrial automation, machine control panels, and relay logic systems
Applications requiring visual indication of relay status and easy manual testing
The ABB CR‑M220DC4L is a pluggable miniature interface relay designed for industrial control and automation applications. It is part of ABB’s CR‑M relay series and is intended to be plugged into a compatible ABB CR‑M socket for quick assembly and snap‑on DIN‑rail mounting. The relay provides dependable switching of multiple circuits with a single control signal and includes visual indicators and test functionality for easier commissioning and troubleshooting.