Technical Specifications / Parameters Parameter Specification Manufacturer Order Code 1SVR040000R01700 Catalogue Type CC-U/STD Brand / Series ABB CR-U Series (Universal Monitoring Relays) Device Type Universal Monitoring Relay (Switching Amplifier) with 2 Adjustable Setpoints Input Signal Type DC Voltage or True RMS AC Voltage. Input Voltage Range Typically 0...10V DC or 0...500V AC (selectable or via different models). Input Impedance High impedance (>100kΩ for voltage inputs) to avoid loading the signal source. Setpoint Adjustment Via two front-panel potentiometers for independent adjustment of upper and lower switching thresholds. Monitoring Function Configurable as a window comparator (output active when signal is inside a set range) or outside a range comparator. This provides hysteresis to prevent output chattering. Output Relay 1 Changeover (CO) Contact (SPDT: 1 NO + 1 NC) • Contact Rating: Typically 6A / 250V AC (resistive load). Output Logic Configurable (e.g., relay energized when condition is met, or de-energized). Power Supply Separate auxiliary supply, typically 24...240V AC/DC (wide-range). Response Time Typically < 500ms. Status Indication LEDs for Power, Input Signal Present, and Output Status. Mounting DIN Rail Mounting (35mm). Module Width 22.5 mm (1 module width, compact). Operating Temperature -25°C to +55°C. Front Protection Degree IP40. Standards & Approvals IEC/EN 60255, UL 508, CSA C22.2 No. 14, CE, cULus. Typical Applications • Level monitoring using a potentiometric sensor (e.g., in tanks). • Pressure or flow switch using a 4-20mA/0-10V transmitter (with external resistor). • Speed monitoring using a tachogenerator. • Over/under-voltage monitoring of DC bus or battery banks. • General-purpose alarm annunciator for any analog signal.