Allen-Bradley 700-CF400 Programmable Logic Controller

The Allen-Bradley 700-CF400 is a four-pole IEC control relay from the 700-CF family, designed to switch loads in machine-control circuits and control panels. It delivers four normally open contacts and is tailored for reliable operation with AC electronic coils and vertical mounting in typical 60 °C environments. Coil voltage options vary by variant; a documented DJ suffix variant uses a 24 VDC coil, while other CF400 variants are built for AC coils. In common configurations, the device supports switching up to 400 VAC with a contact rating around 10 A, and it uses screw terminals for straightforward wiring with either a base mount or a DIN-rail mount option. The 700-CF400 family includes several suffixes (C, I, T, DJ, EJ) that reflect coil type and mounting options, reflecting Rockwell Automation’s broader Allen-Bradley lineup. Typical applications include interlock circuits, sequencing tasks, and general control logic in industrial equipment, where compact, reliable relays are needed to execute control functions without a programmable controller’s complexity.