Product Name: GE Multilin SR469 Motor Management Relay (469‑P1‑LO‑A20‑T)
📊 Technical Specifications (Datasheet)
| Parameter | Specification |
|---|---|
| Model | SR469 (469‑P1‑LO‑A20‑T) |
| Function | Motor protection & control relay |
| Current Input | 0.5 A – 5 A AC (CT secondary) |
| Voltage Input | 50 – 460 VAC (phase‑to‑phase) |
| Frequency Range | 45 – 66 Hz |
| Protection Elements | Overcurrent, ground fault, phase unbalance, stall, locked rotor |
| Trip Classes | Class 5E, 10, 20 |
| Logic I/O | 2 × Form C relay outputs; 2 × digital inputs |
| Communications | Modbus RTU (RS‑485) |
| Display | 4‑digit LED status; multi‑color alarm LEDs |
| Operating Temperature | −20 °C to +60 °C |
| Storage Temperature | −40 °C to +85 °C |
| Humidity | 5–95% RH (non‑condensing) |
| Mounting | DIN‑rail TS35 or panel mount |
| Dimensions (W×H×D) | 35 × 100 × 90 mm |
| Weight | 0.25 kg |
| Certifications | CE, UL |
🔍 Product Overview
The GE Multilin SR469 relay is a compact, field‑proven motor management solution engineered for dependable protection of critical motor assets. Its versatile current and voltage inputs allow seamless integration into low‑ to medium‑voltage motor systems, while a robust set of protection functions guards against overload, phase loss, unbalance, ground faults, and stall conditions. “Tried & Tested” in thousands of installations worldwide, the SR469 combines simplicity with rugged performance, making it ideal for pump stations, fans, compressors, and conveyor drives.
💡 Key Features
- ⚙️ Comprehensive Protection: Built‑in overcurrent, undercurrent, ground‑fault, phase‑unbalance, and locked‑rotor detection in a single package.
- 📈 Adjustable Trip Profiles: Selectable trip classes (5E, 10, 20) and time‑delay settings to match motor thermal characteristics.
- 🔄 Easy Configuration: DIP‑switch setup for common parameters; optional front‑panel programming via PC interface.
- 🛡️ Reliable Operation: Solid‑state sensing and rugged design ensure stable performance in harsh industrial environments.
- 🔌 Flexible I/O and Communication: Two Form C relays and Modbus RTU over RS‑485 support remote supervision and control integration.
- 🌡️ Wide Temperature Range: Operation from −20 °C to +60 °C enables outdoor and refrigerated applications.
🏭 Typical Applications
- 🚰 Water & Wastewater: Protecting booster pumps, aerators, and sludge conveyors from overload or dry‑run faults.
- 🌬️ HVAC Systems: Ensuring reliable operation of fans, blowers, and chiller pumps in commercial buildings.
- 🏭 Industrial Manufacturing: Safeguarding compressors, mixers, and extruders in food, chemical, and plastics plants.
- 🚧 Mining & Aggregates: Controlling conveyor belts, crushers, and rotary feeders in dusty, high‑vibration environments.
- ⚙️ Material Handling: Guarding motors on cranes, hoists, and automated storage‑retrieval systems.
📰 Industry News
The rise of predictive maintenance strategies has reignited interest in compact motor management relays like the SR469. By combining local protection with networked data via Modbus, operators can track trip statistics and current trends to preemptively address motor degradation. Recent case studies indicate a 25% reduction in unplanned downtime when integrating simple motor relays into an overarching condition‑monitoring program. Additionally, tightening energy‑efficiency standards are driving users to optimize motor performance—precise trip settings in the SR469 help maintain motors near their design point, saving both energy and costs over time.
🏭 About Zhangzhou Fengyun Electric Equipment Co., Ltd.
Zhangzhou Fengyun Electric Equipment Co., Ltd. is a full‑service automation and electrical supplier specializing in top European and American brands—GE Multilin, ABB, Siemens, Schneider Electric, and more. With robust import‑export capabilities and a skilled technical team, Fengyun delivers turnkey solutions from project design and panel building to commissioning and 24/7 after‑sales support. Our global reach and local presence ensure timely delivery and customized engineering for clients across industries.
🤝 Sales & Support
- Sales Engineer: Amy
- Phone: +86 153 5902 9662
- Email: geabbamy@gmail.com
- After‑Sales Service: 24/7 hotline, remote diagnostics, on‑site maintenance contracts
🔗 Useful Links
🛠️ Recommended Similar Models
| Model | Protection Functions | I/O & Comm. | Notes |
|---|---|---|---|
| SR469‑P1‑HO‑A10‑T | Overcurrent, phase loss, unbalance | 1 relay, RS‑485 | Economical variant |
| SR489 | Enhanced diagnostics, abs. encoders | 2 relays, EtherNet/IP | Advanced motor health monitoring |
| SR369 | Basic overload & phase protection | 2 relays, Modbus RTU | Slim profile for limited spaces |
| SR479 | Ground‑fault & sensitive earth leakage | 3 relays, IEC 61850 | Suited for critical power systems |
All models support custom settings and firmware options. Contact Amy for detailed configuration advice.
