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GE SR469-P5-HI-A20-E – Multilin Motor Management Relay
Product Overview
The GE SR469-P5-HI-A20-E is a high-performance motor management relay from the Multilin SR469 series, designed for comprehensive protection, control, and monitoring of medium-voltage motors. It addresses the industrial challenge of safeguarding motors from faults like overload, ground fault, and phase unbalance, while enabling efficient motor management to reduce downtime. The SR469-P5-HI-A20-E features an enhanced front panel for easy operation, supports multiple communication ports, and is engineered to withstand harsh industrial environments, making it ideal for power generation, oil and gas, and manufacturing applications.
Technical Specifications — SR469-P5-HI-A20-E
| Parameter | Value |
|---|---|
| Product Model | SR469-P5-HI-A20-E |
| Manufacturer | GE (Multilin) |
| Product Type | Multilin Motor Management Relay |
| Power | Control Power: 70-265 VAC, 90-300 VDC (48-62 Hz); Typical Consumption: 25 VA |
| Communication / Protocol | RS232 (front), RS485 (rear, Modbus RTU); Baud rate: 9600-19200 |
| Operating Temperature | -40°C to +60°C |
| Mounting | Draw-out case, 19-inch rack or panel mount |
| Dimensions (HxWxD) | 21.6 cm x 22.4 cm x 24.1 cm |
| Weight | 7.5 kg (16.5 lbs) |
| Typical Interfaces | Terminal blocks (I/O, CT/VT), RS232 DB-9 port, numeric keypad |
| Compliance | CE, UL, CSA, ISO |
GE SR469-P5-HI-A20-E
Key Features and Benefits — SR469-P5-HI-A20-E
- Equipped with 5A phase CT secondaries and 12 programmable RTD inputs, providing comprehensive thermal protection and temperature monitoring for medium-voltage motors.
- Features 4-20 mA analog outputs and 5 form-C relay outputs, supporting flexible integration with control systems and alarm devices.
- Enhanced 40-character LCD display and keypad simplify configuration, while event recording (256 events) aids in troubleshooting and maintenance.
- Conformal coating ensures reliable operation in harsh environments with high humidity (up to 95%, non-condensing) and dust.
- Draw-out construction allows hot-swappable replacement, minimizing system downtime during maintenance.
Related Models
- SR469-P5-HI-A20-E-H: GE motor management relay with additional harsh environment conformal coating, identical to the base model otherwise.
- SR469-P5-HI-A20-T: GE Multilin relay with integrated Ethernet, suitable for networked automation systems.
- SR469-P5-LO-A20-E: GE motor management relay with low-range control power (20-60 VDC/20-48 VAC) for specific power supply scenarios.
- 469-P5-HI-A20: GE Multilin relay without the enhanced front panel, maintaining core protection and management functions.
Installation and Maintenance — SR469-P5-HI-A20-E
- Mount the draw-out unit on a 19-inch rack or panel, ensuring secure fitting to prevent vibration-related issues.
- Connect CT/VT, I/O, and communication wires to the corresponding terminals, following the wiring diagram for accuracy.
- Configure settings via the front-panel keypad or RS232 port, referring to GE Multilin instruction manuals for guidance.
- Periodically inspect terminal connections and conformal coating for damage, especially in corrosive or dusty environments.
- Store spare units in a temperature-controlled area (-40°C to +80°C) to maintain performance readiness.
