Technical Specifications / Parameters Parameter Specification Manufacturer Order Code 1SVR040013R2702 Catalogue Type CC-U/RTDR Brand / Series ABB CR-U Series (Universal Monitoring Relays) Device Type Universal Temperature Monitoring Relay (RTD Input) Sensor Input Type Resistance Temperature Detector (RTD) Supported Sensor Standards Pt100 (2, 3, or 4-wire connection), Pt1000, Ni100, Ni1000 (configurable). Temperature Measurement Range Programmable, typically -50°C to +400°C (depending on RTD type and configuration). Accuracy Typically ± (0.5% of reading + 1 digit) or better, depending on sensor configuration. Monitoring Functions • Over-temperature Alarm/Trip (High Limit) • Under-temperature Alarm/Trip (Low Limit) • Configurable for Window Mode (inside/outside a range). Number of Outputs 1 or 2 relay changeover contacts (CO - SPDT), depending on model variant and configuration. Output Relay Rating Typically 6A / 250V AC (resistive load). Power Supply Wide-range 24-240V AC/DC (auto-sensing). Setpoint Adjustment Via front-panel rotary DIP switches, pushbuttons, or potentiometers, depending on variant. Display (if equipped) Some variants may feature a digital display for real-time temperature reading and setpoint viewing. Hysteresis Adjustable (prevents output chattering near the setpoint). Response Time Typically < 500ms. Mounting DIN Rail Mounting (35mm). Module Width 22.5 mm (1 module, compact design). Operating Temperature -25°C to +55°C (ambient). Front Protection Degree IP40 (for front panel). Standards & Approvals IEC/EN 60255, UL 508, CSA C22.2 No. 14, CE, cULus. Typical Applications • Motor and bearing temperature protection. • Winding temperature monitoring of transformers and generators. • Process temperature control in ovens, kilns, and reactors. • Protection against freezing in pipelines and tanks. • HVAC system monitoring.