Overview
The ABB 1SVR430885R1300 is a CM-MPS multifunctional three-phase monitoring relay engineered for continuous protection of three-phase electrical systems. This compact device monitors critical phase parameters including phase sequence, phase failure, overvoltage, undervoltage, and phase unbalance. The relay automatically de-energizes output contacts when fault conditions are detected, safeguarding motors and industrial equipment from damage caused by phase loss or voltage anomalies.
Key Features
- Multifunctional Monitoring: Detects phase sequence errors, phase failure, overvoltage, undervoltage, and phase unbalance with adjustable thresholds
- Flexible Configuration: DIP switches enable selection of ON/OFF delay modes, phase sequence monitoring activation, and output contact configuration
- LED Status Indication: Front-face LEDs display operating status and fault conditions for rapid diagnostics
- Adjustable Tripping Delay: Potentiometer-based adjustment of overvoltage, undervoltage, and phase unbalance thresholds with direct-reading scale
- Automatic Phase Sequence Correction: Optional automatic correction of phase sequence errors via DIP switch selection
- Closed-Circuit Principle Operation: Output relays de-energize when measured values exceed or fall below set thresholds
Technical Specifications
- Nominal Control Supply Voltage: 90–170 VAC, 50/60 Hz (U3S designation)
- Frequency: 50/60 Hz
- Output Contacts: 2 × SPDT (Form C) or 1 × 2 c/o (DPDT) configurable via DIP switches
- Contact Rating: As per CM-MPS series datasheet
- Adjustment Range: Overvoltage, undervoltage, and phase unbalance potentiometers with calibrated scales
- Start-up Delay (Ts): Fixed, adjustable via configuration
- Tripping Delay (Tv): Adjustable via front-face potentiometer
- Hysteresis: Fixed 5% per specifications
- Operating Temperature: Per ABB CM-MPS series rating
- Mounting: DIN-rail compatible
- Certifications: CE marked per applicable standards
Typical Applications
The ABB 1SVR430885R1300 is ideal for:
- Three-phase motor protection in manufacturing facilities and industrial plants
- HVAC and pump system supervision to prevent single-phase operation
- Power distribution monitoring in control panels and electrical installations
- Process automation requiring phase integrity verification
- Machine tool and conveyor system protection
Compatibility & Replacements
The ABB 1SVR430885R1300 is part of the CM-MPS multifunctional monitoring relay series and is compatible with standard three-phase AC mains systems operating at the specified voltage range. Alternative variants within the CM-MPS family (such as CM-MPS.21, CM-MPS.23, and CM-MPS.41) may offer different terminal styles (screw vs. push-in) or contact configurations. For replacement or upgrade considerations, consult ABB’s monitoring relay product portfolio to ensure voltage rating and contact configuration alignment with your specific application requirements.
