Siemens 3RS1101-1CK40

The Siemens 3RS1101-1CK40 is a temperature monitoring relay designed for use with Type K thermocouples. It features a single overshoot threshold, allowing precise control within a temperature range of 500 °C to 1000 °C. The device operates on either 110-120 V or 220-240 V AC and includes one normally open (NO) and one normally closed (NC) contact for flexible wiring options. With a compact width of 22.5 mm, it fits well in control panels where space is limited. The relay uses screw terminals for secure and reliable connections and operates on the quiescent current principle to ensure stable performance. While this model has been phased out, its successor offers updated features and improved functionality. BSP Automation offers this temperature monitoring relay along with its latest replacements to support your process control needs.