中文版
Phone: 
Email: 
WhatsApp: Description
GE SR469-P5-H-A20-T – Multifunction Motor Management Relay for Industrial Protection
Product Overview
The GE SR469-P5-H-A20-T is a microprocessor-based multifunction motor management relay designed to protect and monitor three-phase AC motors in industrial environments. It addresses critical challenges of motor reliability by integrating comprehensive protection functions, precise operational monitoring, and flexible communication capabilities. This relay prevents motor damage from overload, phase loss, ground fault, stall, and voltage abnormalities while providing real-time data for predictive maintenance. Ideal for pumps, fans, compressors, and conveyors in power generation, manufacturing, and water treatment, it supports Modbus RTU communication for seamless integration with SCADA and DCS systems. Its draw-out construction simplifies installation and maintenance without disrupting power circuits.
Technical Specifications — SR469-P5-H-A20-T
| Parameter | Value |
|---|---|
| Product Model | SR469-P5-H-A20-T |
| Manufacturer | GE Multilin (GE Vernova) |
| Product Type | Multifunction Motor Management Relay |
| Power | 24–240V AC/DC wide-range power supply (H suffix) |
| Communication / Protocol | Modbus RTU via RS485 (A20 suffix) |
| Operating Temperature | -40°C to +85°C (operational), -40°C to +85°C (storage) |
| Mounting | Draw-out construction, panel mounting compatible |
| Dimensions (HxWxD) | 229mm × 146mm × 191mm |
| Weight | 1.8kg (4 lbs) |
| Typical Interfaces | 3-phase current inputs (5A CT secondary), 4-20mA analog outputs, 8 digital inputs, 6 relay outputs |
| Compliance | IEC 61850, IEEE C37.90, CE, UL listed |
GE SR469-P5-H-A20-T
Key Features and Benefits — SR469-P5-H-A20-T
- Comprehensive Protection: Overload thermal capacity, stall, short-circuit, phase unbalance, ground fault, and voltage protection prevent motor failures.
- Precise Monitoring: Real-time tracking of current, voltage, power, temperature, and speed parameters for operational optimization.
- Flexible Communication: Modbus RTU enables remote configuration, data logging, and integration with industrial control systems.
- Draw-out Design: Hot-swappable construction allows maintenance without system shutdown, minimizing downtime.
- Advanced Diagnostics: Fault recording and event logging for quick troubleshooting and root cause analysis.
Related Models
- SR469-P5-HI-A20-T: High-immunity variant with enhanced surge protection for harsh industrial environments.
- SR469-P5-LO-A20-T: Basic unit with 5A CT secondaries for standard motor protection applications.
- SR469-P5-H-A20-E: Ethernet-enabled version supporting Modbus TCP/IP for advanced network integration.
- SR469-P5-HI-A20-H: Conformal-coated model for extreme temperature and chemical exposure environments.
Installation and Maintenance — SR469-P5-H-A20-T
- Mount the relay in a control panel with proper ventilation, ensuring compliance with IP20 protection rating requirements.
- Connect phase current inputs to 5A CT secondaries and power supply within 24–240V AC/DC range.
- Configure protection settings, communication parameters, and I/O mapping using EnerVista 469 Setup software.
- Verify relay operation with test signals before connecting to live motor circuits to ensure proper functionality.
- Perform periodic inspections of connections and clean with dry air to prevent dust accumulation affecting performance.
- Utilize event logging and diagnostic features to monitor relay health and motor performance trends for proactive maintenance.
