Description

Product Overview

The GE SR469-P5-HI-A20-E is a microprocessor-based motor management relay engineered for critical industrial applications, offering advanced protection, monitoring, and control for medium to large horsepower motors. Manufactured by General Electric (GE), a global leader in power and automation solutions, this relay is part of the Multilin 469 series, renowned for its robust architecture and compliance with industry standards. The GE SR469-P5-HI-A20-E serves as a core component in motor control centers (MCCs), pumping systems, and compressor stations, where precise motor management and fail-safe performance are paramount.

With 5A phase CT secondaries and support for 90–300V DC / 70–265V AC control power, the GE SR469-P5-HI-A20-E delivers comprehensive motor protection against overload, overcurrent, phase loss, and ground faults. Its enhanced front panel features a 40-character LCD display, numeric keypad, and RS-232/RS-485 communication ports, enabling real-time diagnostics and configuration. The relay’s multiple RTD inputs monitor stator temperature and detect hotspots, ensuring optimal thermal management and preventing premature motor failure.

Designed for harsh industrial environments, the GE SR469-P5-HI-A20-E incorporates conformal coating (optional “H” variant) to resist corrosion, humidity, and chemical exposure. Its Modbus RTU/TCP communication capability allows seamless integration with SCADA systems and PLCs, facilitating remote monitoring and predictive maintenance. By integrating the GE SR469-P5-HI-A20-E, industries such as oil & gas, power generation, and manufacturing achieve reduced downtime, extended motor lifespan, and compliance with safety regulations.

Technical Specifications

Parameter Name	Parameter Value
Product Model	GE SR469-P5-HI-A20-E
Manufacturer	General Electric
Product Type	Motor Management Relay (Multilin 469 Series)
Control Power	90–300V DC / 70–265V AC
Frequency Range	48–62 Hz
Phase Current Inputs	5A (CT secondaries)
Analog Outputs	4 x 4–20 mA (isolated)
Digital Inputs	9 x optically isolated
Communication	RS-232, RS-485, Modbus RTU/TCP
Display	40-character LCD with status indicators
Operating Temperature	-20°C to 60°C
Storage Temperature	-40°C to 80°C
Certifications	CE
Enclosure Rating	IP20-X
Physical Dimensions	21.5 cm × 23 cm × 25 cm (8.5” × 9” × 9.8”)
Weight	7.36 kg

Key Features and Advantages

Comprehensive Motor Protection

The GE SR469-P5-HI-A20-E provides multi-layered protection against motor faults, including overload, phase unbalance, under/overvoltage, and ground faults. Its voltage-dependent overload curves dynamically adjust trip thresholds based on input voltage, ensuring optimal protection under varying load conditions.

Advanced Thermal Modeling

Equipped with multiple RTD inputs, the relay monitors stator temperature and calculates the motor’s thermal capacity in real-time. This feature prevents overheating and extends motor lifespan by detecting latent faults before they escalate.

Enhanced Communication Capabilities

Supporting Modbus RTU/TCP, the GE SR469-P5-HI-A20-E enables bidirectional data exchange with control systems, allowing users to remotely configure settings, retrieve diagnostic data, and implement predictive maintenance strategies.

User-Friendly Interface

The 40-character LCD display and intuitive keypad simplify parameter configuration and fault analysis. The relay also offers waveform capture and event logging, providing detailed insights into motor performance and fault history.

Rugged Design

With conformal coating (optional “H” variant) and a IP20-X enclosure, the relay withstands harsh environmental conditions, including high humidity, dust, and chemical exposure, making it suitable for offshore platforms and industrial plants.

Application Areas

Oil & Gas

The GE SR469-P5-HI-A20-E safeguards pumping systems and compressors in offshore rigs and refineries, ensuring reliable operation in corrosive and high-vibration environments. Its thermal monitoring capabilities protect motors from damage caused by prolonged high-temperature operation.

Power Generation

In power plants, the relay controls steam turbines and generator motors, providing critical protection against voltage fluctuations and thermal stress. Its Modbus integration allows seamless integration with plant-wide SCADA systems for centralized monitoring.

Manufacturing

For conveyor systems and industrial machinery in factories, the GE SR469-P5-HI-A20-E ensures stable motor operation and minimizes downtime. Its diagnostic features help identify mechanical issues, such as belt slippage or bearing wear, before they cause production delays.

HVAC Systems

In commercial buildings, the relay manages chillers and ventilation motors, optimizing energy efficiency while ensuring compliance with safety standards. Its real-time monitoring capabilities enable proactive maintenance, reducing operational costs.

Installation and Maintenance

Installation Preparation:

Mounting: Install the GE SR469-P5-HI-A20-E in a 19-inch rack or panel using the provided brackets. Ensure proper grounding to prevent electromagnetic interference.
Wiring: Connect 5A CT secondaries and control power cables using ring lugs (10 AWG). Use shielded twisted-pair cables for communication lines to minimize noise.
Configuration: Use EnerVista 469 software to program protection settings, motor parameters, and communication protocols. Enable Modbus RTU/TCP via the front-panel menu.

Maintenance Recommendations:

Visual Inspections: Regularly check the LCD display for fault alerts and verify LED indicators for channel status. Clean dust from the enclosure to prevent overheating.
Firmware Updates: Periodically update firmware to access the latest features and bug fixes.
Calibration: Verify CT and VT ratios annually to ensure accurate protection settings.
Spare Parts Inventory: Maintain a spare GE SR469-P5-HI-A20-E module to minimize downtime during replacements.

Product Warranty and Support

GE provides a 1-year warranty for the SR469-P5-HI-A20-E, covering defects in materials and workmanship. The module is 100% brand new and factory-sealed, ensuring compliance with original specifications.

For technical support, GE’s global service network offers 24/7 assistance for system integration, diagnostics, and repair. Customers can access online resources and training programs to optimize the relay’s performance and safety protocols.

With spot inventory available, GE ensures 3-day delivery after payment, reducing operational risks associated with component shortages.

Contact info

WhatsApp: +86 18030182217
Email: sandydcsplc@gmail.com
Phone: +86 18030182217
Wechat: +86 18030182217
Website: www.xiongbaparts.com

GE SR469-P5-HI-A20-E Motor Management Relay (Multilin 469 Series)(XIONGBA)