Product Short Description
Function Characteristics
- 5A Phase CT Compatibility: P5 5A phase CT secondary inputs ensure accurate current measurement and protection for motors with 5A CT installations, eliminating the need for CT ratio adapters.
- High-Integrity Power Supply: 90-300 VDC / 70-265 VAC wide-range input ensures stable operation across global industrial power systems, with extended trip holdup for reliable fault response.
- 4 Configurable Analog Outputs: A20 4-20 mA outputs transmit real-time motor parameters (current, voltage, power, temperature) to SCADA/DCS for centralized monitoring and control.
- Enhanced Front Panel: 40-character backlit LCD and front-panel keypad enable quick configuration, real-time status checks, and on-site fault diagnostics, reducing setup and troubleshooting time.
- Comprehensive Protection Suite: Delivers thermal overload, short circuit, ground fault, locked rotor, phase loss/unbalance, undervoltage, overvoltage, underfrequency, and breaker failure protection to cover all critical motor fault scenarios.
Description
Product Introduction
This relay is a core offering in the GE Multilin 469 series, engineered to safeguard motors in demanding industrial settings with advanced protection, real-time monitoring, and predictive diagnostics. It integrates 5A phase CT secondary inputs for accurate current measurement, a high-integrity power supply (90-300 VDC / 70-265 VAC) for global compatibility, 4 configurable 4-20 mA analog outputs for SCADA/DCS integration, and an enhanced front panel with a 40-character LCD for intuitive local operation. The relay uses a high-speed microprocessor to detect electrical/thermal faults instantly, track motor performance continuously, and log actionable data for maintenance optimization. It integrates seamlessly with MCCs and automation systems via standard communication ports, maximizing uptime, reducing operational costs, and ensuring safe, reliable motor operation. It combines fault protection, performance monitoring, and data analytics to extend motor service life and boost operational efficiency.
Technical Specifications
| Specification | Details |
|---|---|
| Series | GE Multilin 469 Motor Management Relay |
| Product Type | 5A Phase CT High-Integrity Motor Management Relay |
| Control Power Supply | HI: 90-300 VDC / 70-265 VAC (48-62 Hz), 20 VA nominal power, 65 VA maximum power |
| Phase Current Inputs | P5: 5 A nominal (CT-connected); frequency range 20-100 Hz; True RMS conversion, 1.04 ms/sample |
| Ground Current Input | 5 A nominal (dedicated ground CT input); frequency range 20-100 Hz |
| Voltage Input | Up to 600 V AC (line voltage monitoring for phase protection) |
| Analog Outputs | A20: 4 analog outputs (4-20 mA), configurable for current, voltage, power, or temperature signals |
| Front Panel & Diagnostics | E: Enhanced front panel with 40-character backlit LCD, front-panel programming, enhanced diagnostics, extended event recorder, security audit trail |
| RTD Inputs | Supports RTD types: 100Ω platinum, 100Ω nickel, 120Ω nickel, 10Ω copper for motor winding/bearing temperature monitoring |
| Digital Inputs | 8 opto-isolated digital inputs for external control/interlock signals (24 V DC, 6 mA sinking current) |
| Output Relays | 6 Form-C contacts, rated 5 A at 250 V AC and 0.5 A at 30 V DC |
| Communication Interfaces | Isolated RS-485 (Modbus RTU), non-isolated RS-232 port for local configuration and EnerVista software connection |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Enclosure Protection | Front panel IP30; NEMA 1/IP20 when mounted in MCC |
| Dimensions (H x W x D) | 296 mm x 107 mm x 205 mm |
| Weight | 4.5 kg (approximate) |
| Accuracy | Overload trip: ±1% of displayed value; current measurement: ±0.2% of full scale; voltage measurement: ±0.5% of full scale |
| Event Recorder | Stores up to 200 fault events with time stamps; security audit trail for operational accountability |
| Waveform Capture | Oscillography with 128 samples per cycle for voltage/current post-fault analysis |
| Analog Output Accuracy | ±1% of full scale; configurable for 0-20 mA or 4-20 mA |
| Power Consumption | 20 VA nominal, 65 VA maximum |
| Trip Holdup Time | 200 ms non-failsafe; 100 ms failsafe |
| Certifications | UL, CSA, CE compliant; meets IEC 61850 standards |
Function Characteristics
- 5A Phase CT Compatibility: P5 5A phase CT secondary inputs ensure accurate current measurement and protection for motors with 5A CT installations, eliminating the need for CT ratio adapters.
- High-Integrity Power Supply: 90-300 VDC / 70-265 VAC wide-range input ensures stable operation across global industrial power systems, with extended trip holdup for reliable fault response.
- 4 Configurable Analog Outputs: A20 4-20 mA outputs transmit real-time motor parameters (current, voltage, power, temperature) to SCADA/DCS for centralized monitoring and control.
- Enhanced Front Panel: 40-character backlit LCD and front-panel keypad enable quick configuration, real-time status checks, and on-site fault diagnostics, reducing setup and troubleshooting time.
- Comprehensive Protection Suite: Delivers thermal overload, short circuit, ground fault, locked rotor, phase loss/unbalance, undervoltage, overvoltage, underfrequency, and breaker failure protection to cover all critical motor fault scenarios.
- Advanced Diagnostics: Enhanced motor diagnostics, extended event logging, security audit trail, and oscillography enable root-cause analysis, minimizing downtime and optimizing maintenance schedules.
- Flexible I/O Configuration: 8 digital inputs and 6 Form-C outputs are customizable for control, alarm, and interlock functions, supporting integration with external safety systems.
- Waveform Capture: 128-samples-per-cycle oscillography captures voltage/current waveforms for detailed post-fault analysis and system optimization.
- Seamless System Integration: Isolated RS-485 (Modbus RTU) and RS-232 ports support connection to SCADA, DCS, and other industrial control systems for centralized monitoring and remote management.
- RTD Temperature Monitoring: Supports multiple RTD types for direct temperature measurement of motor windings and bearings, enabling early detection of thermal issues.
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