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1SVR430103R0200

The ABB 1SVR430103R0200 is a microprocessor-based, 3-phase current monitoring relay from the ABB CM-MSS.x series (also known as the MS or Motor Saving series). This compact device is designed to provide reliable and configurable protection for motors, pumps, fans, and other 3-phase equipment by continuously monitoring the supply current. It safeguards against faults such as overcurrent, undercurrent, phase failure (loss), phase unbalance, and incorrect phase sequence (rotation). Its primary function is to prevent equipment damage and process downtime by disconnecting the load when abnormal current conditions are detected.

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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.