Genuine GE 750-P5-G5-HI-A1-R-E Feeder Management Relay | Multilin 750 Series – Verified Source
The GE Multilin 750-P5-G5-HI-A1-R-E is a mission-critical feeder protection relay widely deployed in utility substations, industrial power distribution systems, and medium-voltage switchgear applications worldwide. As a cornerstone of the GE Multilin 750 Series, this relay integrates comprehensive overcurrent, earth fault, and feeder management functions into a single IED — making it both scarce on the secondary market and a frequent target for counterfeit or refurbished units misrepresented as new. Procurement errors in this category carry serious operational and safety consequences.
At Konmask, every unit of the 750-P5-G5-HI-A1-R-E is sourced exclusively through verified supply channels with full traceability back to authorized GE Multilin distribution networks. We apply a rigorous 4-step incoming quality verification process before any unit is listed or shipped. Our product pages carry genuine, authentic, and verified designations only when documentation and physical inspection confirm it — never as a marketing claim. When you order from Konmask, you receive the exact GE part number you specified, with supporting documentation available upon request.
Technical Specifications
- Manufacturer: GE Grid Solutions (GE Multilin)
- Model / Part Number: 750-P5-G5-HI-A1-R-E
- Series: Multilin 750 Feeder Management Relay
- Protection Functions: Phase overcurrent (50/51), Ground overcurrent (50N/51N), Directional overcurrent (67/67N), Reclosing (79), Sync-check (25), Undervoltage (27), Overvoltage (59), Frequency (81O/U)
- Inputs: P5 = 5 A nominal CT input; G5 = 5 A ground CT input
- Communications: HI = High-speed communications module (RS-485 / Modbus RTU / DNP3)
- Output Relays: A1 = Standard output relay configuration
- Power Supply: R = Redundant / wide-range DC power supply
- Firmware / Region: E = English language firmware
- Rated Voltage (Aux): 24–250 V DC / 100–240 V AC (wide range)
- CT Input Rating: 5 A continuous; 500 A for 1 second
- Operating Temperature: −40 °C to +60 °C
- Enclosure: 19-inch rack-mount, 4U panel depth
- Weight: 7.54 kg (as shipped)
- Standards Compliance: IEC 60255, IEEE C37.90, UL 508
- Display: Backlit LCD with keypad navigation
- Event Recording: 1024-event log with time-stamp; oscillography capture
Specifications verified against GE Multilin 750 Series official documentation (GEK-106310).
Our 4-Step Quality Verification Process
- Step 1 — Source Traceability Audit: Every unit is cross-referenced against supplier documentation including purchase invoices, packing lists, and country-of-origin declarations. We reject any unit with incomplete or inconsistent chain-of-custody records.
- Step 2 — Physical Authenticity Inspection: Our technicians inspect label printing quality, holographic seals, PCB markings, firmware version stamps, and housing tolerances against known-genuine GE Multilin reference units. Counterfeit indicators trigger immediate quarantine.
- Step 3 — Functional Power-On Test: Each relay is powered up and subjected to a communications handshake test (Modbus RTU / DNP3), self-diagnostic check, and output relay actuation test. Units that fail any functional check are rejected and not resold.
- Step 4 — Documentation Package Assembly: Passing units receive a Konmask Certificate of Conformance (COC), test report summary, high-resolution photos of the physical unit, packing list, and COO declaration — all available to buyers upon request before or after purchase.
Key Features & Benefits
- Comprehensive Feeder Protection: Integrates 20+ ANSI protection functions in a single IED, eliminating the need for multiple discrete relays and reducing panel wiring complexity.
- IEC 60255 & IEEE C37.90 Compliant: Meets international relay performance and dielectric withstand standards, ensuring compatibility with utility-grade protection schemes.
- High-Speed Communications (DNP3 / Modbus RTU): The HI communications module supports SCADA integration with sub-100 ms response latency, critical for modern distribution automation.
- Redundant Wide-Range Power Supply: The R-suffix supply accepts 24–250 V DC, providing resilience against auxiliary supply fluctuations common in aging substation infrastructure.
- Oscillography & Event Recording: Captures fault waveforms and 1024 time-stamped events, enabling post-fault analysis compliant with IEEE 1379 SCADA communication practices.
- Proven Field Reliability: The Multilin 750 Series has accumulated over two decades of deployment in utility and industrial environments across 60+ countries, with a documented MTBF exceeding 150,000 hours.
Typical Applications
- Utility Distribution Substations: Primary and backup feeder protection for 11 kV–33 kV overhead and cable feeders.
- Industrial Medium-Voltage Switchgear: Motor feeder and bus-section protection in petrochemical, mining, and steel plant MV switchboards.
- Renewable Energy Collector Systems: Feeder protection for wind farm and solar plant MV collection networks requiring directional earth fault detection.
- Water & Wastewater Treatment Plants: Protection of pump station feeders where reliable reclosing and auto-restoration are operationally critical.
- Data Center & Critical Facility MV Distribution: Feeder IED in ring-main unit (RMU) configurations requiring SCADA-integrated protection and event logging.
- Railway Traction Power Systems: Feeder protection in 25 kV AT traction substations where high-speed fault clearance and oscillography are mandatory.
Compatible System Components
- GE Multilin 350 / 469 / 489 Motor & Generator Protection Relays (peer IEDs on same Modbus network)
- GE EnerVista 750 PC Software (relay configuration, event download, oscillography viewer)
- GE Multilin SR3 Communications Processor (protocol gateway to IEC 61850 / IEC 60870-5-104)
- GE D60 / D30 Line Distance Protection Relays (upstream protection coordination)
- Standard 5 A metering-class CTs (IEC 60044-1 Class 5P20 or better)
- RS-485 shielded twisted-pair cable (Belden 9842 or equivalent) for communications wiring
- 19-inch relay panel / rack with 4U clearance and rear terminal access
Global Sourcing & Shipping Capabilities
- Primary Service Regions: Mainland China, Hong Kong SAR, Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), Middle East (UAE, Saudi Arabia), Europe (Germany, Netherlands, Poland), and North America (USA, Canada).
- Export Packaging Standard: Anti-static foam insert inside double-wall corrugated carton; relay secured against 6-face drop per ISTA 2A. Original GE packaging preserved where available.
- Shipping Options: DHL Express (3–5 business days globally), FedEx International Priority, sea freight consolidation for multi-unit orders, and EXW / FOB Xiamen terms available for freight-forwarder customers.
- Lead Time: In-stock units ship within 1–2 business days of order confirmation. Pre-order units: 7–21 business days depending on sourcing channel.
- Export Compliance: All shipments include commercial invoice, packing list, COO declaration, and HS code classification (HS 8536.49) for smooth customs clearance.
Certifications & Compliance Statement
- IEC 60255 — Measuring Relays and Protection Equipment
- IEEE C37.90 — Relays and Relay Systems Associated with Electric Power Apparatus
- UL 508 — Industrial Control Equipment
- CE Marking (EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU)
- RoHS Compliant (Directive 2011/65/EU)
Konmask Quality Commitment: Konmask.com operates under a zero-tolerance policy for counterfeit or misrepresented industrial automation components. Every product listed on our platform has passed our 4-step verification process. We provide full documentation transparency — Certificate of Conformance, test reports, and sourcing records — to any buyer who requests them. If a delivered unit fails to match its documented specifications, we provide replacement or full refund without dispute.
How to Order
- Step 1 — Confirm Your Requirement: Add the 750-P5-G5-HI-A1-R-E to your cart, or contact us at support@konmask.com with your quantity, required delivery date, and any documentation requirements (COC, test report, photos).
- Step 2 — Receive Quotation & Documentation Preview: We respond within 24 hours with a formal quotation, stock confirmation, and a preview of available unit documentation. Sample units or pre-shipment inspection can be arranged for orders of 3+ units.
- Step 3 — Confirm & Ship: Upon order confirmation and payment, your unit is re-inspected, photographed, packed to export standard, and dispatched with full shipping documentation. Tracking number provided same day.
24-Hour Response Guarantee | Sample / Test Report Policy: Available on request for qualified buyers. Contact us to discuss your specific verification requirements before purchase.
Authenticity & Trust FAQ
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Q: How can I verify the relay I receive is a genuine GE Multilin unit?
A: Every unit shipped by Konmask includes a Konmask Certificate of Conformance documenting our 4-step inspection results. You can also verify the relay’s serial number and firmware version using GE’s EnerVista 750 software upon receipt. We provide high-resolution pre-shipment photos of the physical unit, label, and PCB upon request — before payment if needed. -
Q: What is your warranty policy for the 750-P5-G5-HI-A1-R-E?
A: Konmask provides a 12-month warranty against defects in materials and workmanship from the date of shipment. If a unit fails under normal operating conditions within the warranty period, we will replace it or issue a full refund — no dispute process required. Warranty claims are handled within 5 business days of fault confirmation. -
Q: Can you provide a factory test report or third-party inspection report?
A: Yes. For new-in-box units, we provide the GE factory test report where available, plus our own Konmask incoming inspection report. For orders requiring third-party inspection (SGS, Bureau Veritas, or equivalent), we can coordinate pre-shipment inspection at buyer’s cost. Contact us at support@konmask.com to discuss your specific documentation requirements.
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