GE SR469-P5-HI-A20-E Medium Voltage Motor Management Protection Relay

Technical Specifications

• Model: SR469-P5-HI-A20-E, Brand: GE Multilin, Origin: USA
• CT Secondary: 5A phase current transformer input
• Control Power: 70–265 VAC / 90–300 VDC, 48–62Hz
• Signal Inputs: 3-phase CT, differential CT, ground CT, VT voltage, 12-channel 3-wire RTD, 9 dry contact DI
• Output Channels: 6 Form-C relay outputs, 4 channels 4–20mA analog output
• Communication Ports: RS232, RS485, Ethernet, Modbus TCP/RTU, DNP3
• Protection Functions: Overload, short circuit, ground fault, phase unbalance, stall, broken rotor bar, overheat protection
• Operating Temperature: -20℃ ~ +60℃ full load
• Storage Temperature: -40℃ ~ +70℃
• Humidity: 5%–95% non-condensing, standard conformal coated PCB
• Protection Class: IP20 cabinet installation only
• Structure: Draw-out pluggable module with lockable extraction handle
• Net Weight: Approx. 2.5kg
• Certifications: CE, UL industrial compliance

Key Features

1. All-in-one medium voltage motor protection, covers electrical fault and stator/bearing overheat monitoring.
2. Advanced multi-point RTD thermal modeling with multi-stage alarm and trip logic for motor temperature safety.
3. Draw-out pluggable design enables quick module replacement without whole cabinet power cut.
4. Complete event recording, waveform capture and data logging for post-fault analysis and maintenance.
5. Multi-protocol Ethernet & serial communication seamlessly connects to DCS and SCADA monitoring systems.
6. Built-in simulation function simplifies on-site commissioning, protection curve test and parameter calibration.
7. Front LCD display + physical keypad for real-time current, voltage, temperature and fault status check.
8. Reinforced metal housing and anti-interference circuit, stable 24/7 continuous motor protection operation.