GE Multilin SR469-P5-HI-A20 Motor Management Relay
Technical Specification & Core Parameter Document
1. Product Basic Identification
Model Number: SR469-P5-HI-A20
Brand: GE Multilin (General Electric)
Product Category: Digital Motor Protection & Management Relay
Application Scope: Medium & High Voltage Motor Protection, Monitoring and Control
2. Core Hardware Configuration & Rated Parameters
Control Power Supply: 85-250V AC/DC (Wide Voltage Range, Universal Power Module)
Current Input Rating: 5A AC / 1A AC (Configurable CT Primary Ratio, 0.1~5000:1)
Voltage Input Rating: 0-480V AC Phase-to-Phase / Phase-to-Ground
Communication Module: Built-in RS485 (Modbus RTU), Optional Ethernet (Modbus TCP/IP)
I/O Configuration: 8 Programmable Digital Inputs, 6 Programmable Relay Outputs (Form C Contact)
Operating Temperature Range: -40°C to +70°C (-40°F to +158°F), Industrial Grade Wide Temperature
Altitude Adaptation: Up to 2000 meters, Derating Applicable for Higher Altitudes
3. Primary Protection Functions
Overcurrent & Thermal Protection
- Stator thermal overload protection (IEEE 242/ANSI C37.90 standard)
- Instantaneous overcurrent protection (phase & ground fault)
- Time-delayed phase overcurrent and earth fault protection
Motor Special Protection
- Locked rotor protection (stuck rotor detection)
- Unbalance/negative sequence current protection (2-100% unbalance ratio)
- Underload/loss of load protection (pump & fan application priority)
- Phase loss/open phase protection with ultra-fast trip response
Voltage & Power Protection
- Undervoltage/overvoltage protection (phase voltage & line voltage)
- Voltage unbalance and phase rotation detection
- Reverse power and underpower protection for generator motors
4. Monitoring & Control Capabilities
- Real-time electrical measurement: 3-phase current, voltage, active/reactive power, power factor, energy consumption
- Motor running status monitoring: operating time, start-up count, trip event record (1000+ event logs)
- Programmable motor start control: direct-on-line (DOL), star-delta, soft starter, VFD start mode
- Remote control & local control dual mode, with manual/automatic switchover function
- Fault waveform capture and fault cause analysis, fault memory non-volatile storage
5. Compliance & Certification
ANSI/IEEE C37.90.1, C37.90.2 Industrial Relay Standards
IEC 61850 Communication Protocol Compatible (Optional)
UL Listed, CSA Certified, CE Marked, RoHS Compliance
IP20 Panel Mount Rating, Shock & Vibration Resistant (IEC 60068)
GE Multilin SR469 Series | All Technical Data Subject to GE Official Specification | Updated 2025
