Description
GE SR469-P5-HI-A1-E – Advanced Motor Protection Relay for Industrial Applications
One thing I appreciate about the GE SR469-P5-HI-A1-E is how it balances precision protection with real-world usability. It’s not just another motor relay—it’s a smart choice for engineers managing medium-voltage motors in demanding environments like power plants, oil & gas facilities, or large-scale manufacturing lines.
Key Features
- Dual-port Ethernet with Modbus TCP and IEC 61850 support – makes integration into modern SCADA and DCS systems smoother, especially when you’re upgrading legacy infrastructure.
- Comprehensive motor protection suite – includes phase imbalance, ground fault, stall protection, and thermal overload monitoring. From my experience, this reduces unplanned downtime by catching issues before they escalate.
- Built-in waveform capture and event logging – seems to be particularly useful during troubleshooting. You might notice that having pre-fault data saves hours during root cause analysis.
- High immunity to electrical noise – typically matters in switchgear rooms where EMI can interfere with sensitive electronics. This model holds up well even in electrically noisy environments.
- Color touchscreen HMI (Human-Machine Interface) – simplifies local configuration and diagnostics without needing a laptop every time.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand / Model | GE / SR469-P5-HI-A1-E |
| HS Code | 85371000 |
| Power Requirements | 88–264 VAC or 125–370 VDC, auto-ranging |
| Operating Temperature | -20°C to +70°C |
| Signal Input/Output Types | Analog inputs: 4–20 mA, RTD support; Digital outputs: 8 dry contacts (form C), configurable |
| Communication Interfaces | Dual Ethernet (Modbus TCP, IEC 61850 MMS), RS-485 (Modbus RTU), USB for service |
| Installation Method | Panel mount (front flange), standard 19” rack compatible with adapter |
| Dimensions & Weight | Approx. 230 mm × 180 mm × 100 mm (W×H×D), ~2.1 kg |
Application Fields
The SR469 is commonly used to protect critical motors in water treatment plants, mining conveyors, compressor stations, and utility substations. In many cases, it replaces older electromechanical relays during control system retrofits—especially when digital communication and remote monitoring are required. Its ability to handle both high-resistance ground faults and differential protection makes it suitable for medium-voltage applications up to 15 kV.
Advantages & Value
Procurement teams often find value in its long-term reliability and reduced engineering hours during commissioning. The dual Ethernet ports allow for redundant network configurations, which helps avoid single points of failure. Also, because it supports IEC 61850, there’s less need for protocol gateways—cutting down on additional hardware costs. From a lifecycle cost perspective, fewer field visits and faster diagnostics tend to justify the initial investment over time.
Installation & Maintenance
It fits into standard 19-inch cabinets or control panels with adequate ventilation—avoid placing near heat-generating components like transformers. Make sure terminal wiring follows torque specs (typically 0.6–0.7 Nm) to prevent loose connections. One thing I’ve seen in the field: using shielded twisted-pair cables for analog signals improves noise rejection. Routine maintenance should include checking firmware updates annually and verifying calibration every 2–3 years, depending on operating conditions.
Quality & Certifications
Certified to CE, UL 508, CSA, and RoHS standards. Designed and tested under ISO 9001 quality management processes. Comes with a 365-day warranty covering defects in materials and workmanship. Firmware updates are available through authorized GE channels, ensuring continued compliance and security patches.
Delivery: Usually ships within one week if in stock; maximum lead time no more than four weeks. Payment terms are 50% upfront, balance before shipment. We ship via FedEx, UPS, or DHL based on destination and urgency.
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