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CR-M024AC4

The ABB CR‑M024AC4 is a pluggable miniature interface relay designed for industrial and automation control systems. It plugs into a compatible ABB CR‑M socket and can be mounted on a standard DIN rail. Its purpose is to provide reliable electrical isolation and switching between a low‑power control signal and one or more output circuits, enabling control logic to operate external devices such as contactors, indicators, or other loads.

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Electrical Parameters Rated Control Supply Voltage: 24 V AC. Rated Operational Voltage (Output Contacts): Up to 250 V AC. Contact Configuration: Four SPDT (changeover) contacts. Contact Ratings: 6 A switching capacity at 250 V AC per contact. Operational Current Categories: AC‑12: ~6 A at ~230 V AC AC‑15: ~1.5 A at ~120 V AC, ~1 A at ~230 V AC DC‑12: ~6 A at ~24 V DC DC‑13: ~2 A at ~24 V DC, ~0.1 A at ~250 V DC Rated Insulation Voltage: ~250 V between control and output circuits. Mechanical & Physical Dimensions: Width: ~21.2 mm Height: ~35.6 mm Depth: ~27.5 mm Weight: ~0.033 kg. Terminal Type: Flat‑pin connections for secure and compact socket wiring. Mounting: Relays plug into a socket that clips to a TH35 DIN rail. Environmental Operating Ambient Temperature: Approximately –40 °C to +55 °C. Storage Temperature: Typically down to –40 °C to +85 °C. Protection Rating: IP40 (touch‑protected terminals when mounted). Typical Applications Electrical Isolation & Signal Amplification: Between PLC/logic outputs and field devices. Control Panels: Switching auxiliary devices, indicators, and small loads. Automation Systems: Relay logic implementation, interlocking, and control signal distribution. Equipment Interfaces: Between low‑power control circuitry and higher voltage outputs.