GE 469-P1-HI-A20-E-H – Motor Management Relay (GE Multilin 469 Series)

Technical Specifications

Manufacturer: GE Multilin (General Electric Digital Energy)
Model: 469-P1-HI-A20-E-H
Series: 469 Motor Management Relay
Phase Current Input: 1 A phase CT secondaries (P1)
Control Power (HI): 90–300 VDC / 70–265 VAC, 48–62 Hz
Analog Outputs (A20): 4 × 4–20 mA isolated analog outputs
Digital Inputs: 9 opto-isolated, programmable digital inputs
Display: Enhanced 40-character backlit LCD with LED status indicators
Communication Ports: Front RS232 (EnerVista setup), rear RS485 (Modbus RTU); optional Ethernet/DeviceNet via MultiNet
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 at 55°C)
IP Rating: IP40 (front panel), IP20 (rear terminals)
Mounting: Panel-mount with draw-out chassis
Dimensions (L×W×D): 300 mm × 200 mm × 150 mm
Weight: 10 kg (shipping weight)
Certifications: CE, UL, CSA (industrial safety & EMC compliance)
Environmental Protection: Conformal coating for harsh/chemical environments (-H)

Key Features

Comprehensive Motor Protection
- Thermal Overload: Advanced thermal model with RTD input support for stator winding temperature monitoring.
- Electrical Faults: Short-circuit, ground fault, phase unbalance, loss of phase, and reverse-phase protection.
- Mechanical & Operational: Stall/locked rotor, underload, broken rotor bar, and excessive start attempts protection.
- Voltage Abnormalities: Overvoltage, undervoltage, and voltage unbalance protection.
High-Precision Metering & Monitoring
- Real-time measurement of three-phase current, voltage, power (kW/kVAR/kVA), power factor, frequency, and energy consumption.
- Thermal capacity usage, motor start count, and runtime hour tracking for asset lifecycle management.
- 4 configurable 4–20 mA analog outputs for transmitting key parameters to DCS/PLC systems.
Enhanced Diagnostics & Maintenance
- Event & Waveform Capture: Records fault events, trip logs, and waveform data for post-fault analysis.
- Self-Diagnostics: Continuous health monitoring with configurable alarms for early fault detection.
- EnerVista Software: PC-based configuration, monitoring, and firmware updates via RS232/RS485.
- Draw-Out Design: Hot-swappable chassis for quick replacement without system shutdown.
Flexible Communication & Integration
- Standard Modbus RTU over RS485 for seamless integration with PLC/SCADA systems.
- Front RS232 port for direct laptop connection and on-site setup.
- Optional Ethernet/DeviceNet modules for high-speed network communication.
Rugged & Reliable Construction
- Industrial-grade components with conformal coating to resist corrosion, moisture, and dust.
- Wide operating temperature range for extreme industrial environments.
- LED indicators for power, protection, communication, and fault status.

Application Scenarios

Oil & Gas Industry
- Motor control and protection for pumps, compressors, fans, and conveyors in refineries, pipelines, and offshore platforms.
- Harsh environment compatibility (corrosion, humidity) for onshore and offshore installations.
Power Generation
- Auxiliary motor protection (cooling water pumps, induced draft fans) in thermal, combined-cycle, and hydroelectric power plants.
- Integration with plant DCS for centralized motor health monitoring.
Water & Wastewater Treatment
- Protection for large pumps, blowers, and aerators in municipal and industrial water treatment facilities.
- Conformal coating for humid and chemically aggressive environments.
Mining & Metals
- Motor management for conveyors, crushers, mills, and hoists in mining, steel, and aluminum plants.
- High resistance to dust, vibration, and temperature fluctuations.
Chemical & Petrochemical
- Critical motor protection for reactors, mixers, and process pumps in corrosive and explosive industrial zones.
- Compliance with industrial EMC and safety standards.