Technical Specifications / Parameters Parameter Specification Manufacturer Order Code 1SVR430103R0200 Product Family / Series ABB CM-MSS.x / Motor Saving Series (MS) Device Type 3-Phase Current Monitoring Relay (Electronic Protective Relay) Monitoring Functions • Overcurrent (I>) • Undercurrent (I<) • Phase Failure / Loss • Phase Unbalance (Asymmetry) • Phase Sequence (Rotation) Input Current Range 0.1A ... 10A (Direct connection) • Higher currents via external current transformers (CTs). Power Supply Voltage (Us) 24...240V AC/DC (Wide-range, auto-sensing) Output Relay 1 Changeover (CO) Contact (SPDT) • Rated Load: Typically 6A / 250V AC (resistive) Setpoint Adjustment Via rotary DIP switches and/or potentiometers on the front face (exact method depends on the specific MSS.x variant). Trip/Reset Mode Typically Automatic reset after fault clearance, or manual reset via external command, depending on configuration. Time Delays Adjustable start-up delay (to ignore motor inrush) and trip delay (to prevent nuisance tripping). Status Indication LEDs for Power (ON), Alarm/Trip, and sometimes Load Current status. Mounting DIN Rail Mounting (35mm, EN 60715) Module Width 22.5mm (Ultra-compact, 1 module wide) Operating Temperature -25°C ... +55°C Standards & Approvals IEC/EN 60255, UL 508, CSA C22.2 No. 14, CE, cULus listed. Connection Screw-clamp terminals. Typical Applications • Protection of 3-phase motors (pumps, fans, compressors). • Monitoring of heating elements. • Pump dry-run protection (via undercurrent). • Conveyor belt slip/break monitoring. • Ensuring correct phase rotation for sensitive equipment.