GE 469-P5-HI-A20-E – GE Multilin 469 Motor Management Relay

Technical Specifications

• Manufacturer: GE Multilin (GE Vernova/GE Grid Solutions)
• Model: 469-P5-HI-A20-E
• Series: GE Multilin 469 Motor Management Relay
• Phase Current Inputs: 5 A phase CT secondaries
• Control Power: 90–300 VDC; 70–265 VAC (48–62 Hz)
• Frequency Range: 48–62 Hz (±3%)
• Analog Outputs: 4 channels of 4–20 mA
• Digital Inputs: 9 opto-isolated inputs
• Relay Outputs: 8 Form-C contacts
• RTD Inputs: 6 channels (100Ω Platinum)
• Communication: RS485 (Modbus/DNP3.0), RS232 (program port)
• Display: Enhanced 320×240 LCD with LED backlight
• Operating Temperature: -40°C to +60°C (-40°F to 140°F)
• Storage Temperature: -40°C to +80°C (-40°F to 176°F)
• Relative Humidity: 5%–95% (non-condensing)
• Enclosure Rating: 20-X (pollution degree 2, overvoltage category II)
• Insulation Voltage: 300 V
• Power Consumption: 390/500 mA (max)
• Dimensions (L×W×H): 178 mm × 229 mm × 178 mm (7.0 in × 9.0 in × 7.0 in)
• Weight: 4.8 kg (10.6 lbs)
• Certifications: CE, UL, CSA, ISO (industrial safety and EMC compliance)

Key Features

1. Comprehensive Motor Protection
   • Provides overload, short circuit, under/overvoltage, locked rotor, ground fault, and phase unbalance protection.
   • Detects broken rotor bars and torque anomalies to prevent mechanical damage.
   • Dual-setting groups allow instant protection characteristic changes during motor startup.
2. Precision Monitoring & Predictive Maintenance
   • 6 RTD channels monitor stator winding, bearing, and ambient temperatures for thermal protection.
   • Real-time metering of current, voltage, power, energy, and power factor.
   • Waveform capture and event reporting for detailed fault analysis and root-cause identification.
   • Data logging tracks motor performance trends for predictive maintenance scheduling.
3. Enhanced User Interface & Diagnostics
   • Large 320×240 LCD display with LED backlight for clear visibility in low-light industrial environments.
   • Local keypad for easy configuration, real-time data viewing, and diagnostic message access.
   • On-board LED indicators for power, communication, and fault status monitoring.
4. Flexible Communication & Network Integration
   • Standard RS485 port supports Modbus/DNP3.0 protocols for connection to SCADA/DCS systems.
   • RS232 program port enables local configuration and firmware updates.
   • Optional Ethernet and DeviceNet interfaces for seamless integration into industrial networks.
5. Robust Industrial Design
   • Compact drawout design for easy installation, removal, and maintenance without system shutdown.
   • Wide operating temperature range and ruggedized components ensure reliability in harsh industrial conditions.
   • Conformal coating option (469-P5-HI-A20-E-H) available for corrosive or chemical environments.

Application Scenarios

• Power Generation
  • Turbine Auxiliaries: Protects and monitors motors for boiler feed pumps, fans, and compressors in thermal power plants.
  • Hydroelectric Plants: Controls high-power motors for water pumps and gate operators.
• Mining & Metals
  • Conveyor Systems: Ensures reliable operation of large conveyor motors in coal, iron ore, and mineral mines.
  • Crushers & Mills: Protects high-torque motors for crushing and grinding equipment in processing plants.
• Water & Wastewater Treatment
  • High-Power Pumps: Manages motors for raw water intake, sewage treatment, and circulation pumps.
  • Blowers & Aerators: Controls motors for aeration systems in wastewater treatment facilities.
• Oil & Gas
  • Refineries: Protects motors for pumps, compressors, and agitators in refining processes.
  • Pipelines: Monitors large drive motors for crude oil and natural gas transmission systems.
• Chemical & Petrochemical
  • Reactors & Distillation Columns: Ensures safe operation of motors driving mixers, pumps, and fans.
  • HVAC Systems: Controls motors for industrial heating, ventilation, and air conditioning in chemical plants。