Power System Protection Solution – GE UR5EH CPU Board | UR Series
The GE UR5EH is the central processing unit board designed for GE’s Universal Relay (UR) Series protection and control platform. Engineered for mission-critical power system protection, this CPU board delivers the computational backbone for real-time fault detection, protection logic execution, and substation communication — making it the preferred choice for utility engineers and industrial power system designers worldwide.
Where This Product Is Used
The GE UR5EH CPU Board is deployed across a wide range of high-reliability power infrastructure environments:
- Transmission & Distribution Substations — Primary and backup protection for HV/EHV transmission lines, transformers, and bus bars
- Generator Protection Systems — Integrated into UR-series relays (G60, T60, L90) protecting generators in power plants and industrial facilities
- Industrial Power Systems — Motor bus transfer, feeder protection, and arc flash detection in petrochemical, mining, and manufacturing plants
- Renewable Energy Installations — Wind farm collector systems and solar PV interconnection protection
- Railway Traction Power — Overhead line and traction substation protection schemes
- Data Center Critical Power — UPS and switchgear protection in Tier III/IV data center infrastructure
Technical Specifications
| Part Number / SKU | UR5EH |
| Manufacturer | GE Grid Solutions (General Electric) |
| Product Series | UR Series (Universal Relay Platform) |
| Module Type | CPU / Processor Board |
| Platform Compatibility | GE UR Series Relays (C60, D60, F60, G60, L90, T60, M60, N60, etc.) |
| Processor Architecture | High-speed DSP + RISC dual-core processing |
| Communication Support | IEC 61850, DNP3, Modbus, IEC 60870-5-104 |
| Operating Temperature | -20°C to +60°C |
| Mounting | UR chassis card slot (standard UR rack) |
| Certifications | CE, UL, IEC 60255, IEEE C37.90 |
| Condition Available | New OEM / Tested Surplus / Refurbished |
Why Engineers Specify This Model
- Platform Longevity — The UR Series has been the industry standard for over 20 years; the UR5EH CPU ensures continued operation of existing relay chassis without full system replacement
- IEC 61850 Native Support — Enables seamless integration into modern digital substation architectures with GOOSE messaging and sampled values
- Hot-Swap Capable — Designed for field replacement without de-energizing the entire protection panel, minimizing outage windows
- Deterministic Real-Time Processing — Sub-millisecond protection response times critical for high-speed fault clearance
- Backward Compatible — Supports legacy UR firmware versions while enabling upgrade paths to current GE EnerVista software suite
- Cybersecurity Ready — Supports NERC CIP compliance requirements for utility-grade cyber protection
Complete System Bill of Materials
The UR5EH CPU Board operates within the GE UR modular chassis. A complete protection relay system typically includes:
- UR5EH — CPU / Processor Board (this item)
- UR6AH / UR6BH — AC Input Module (current & voltage inputs)
- UR7AH — Digital I/O Module (contact inputs & output relays)
- UR8AH — Power Supply Module (AC or DC)
- UR9GH / UR9KH — Communications Module (Ethernet / fiber)
- UR-series Chassis — 4U or 8U rack-mount enclosure
- EnerVista UR Setup Software — GE configuration and commissioning tool
Contact Konmask to source a complete UR Series relay system or individual replacement modules.
Compliance & Industry Standards
- IEC 60255 — Measuring relays and protection equipment
- IEEE C37.90 — Standard for relays and relay systems associated with electric power apparatus
- IEC 61850 — Communication networks and systems for power utility automation
- NERC CIP — North American Electric Reliability Corporation Critical Infrastructure Protection
- CE Marking — European conformity for electrical equipment
- UL Listed — Underwriters Laboratories safety certification
- RoHS Compliant — Restriction of Hazardous Substances Directive
Quality Assurance & Sourcing
At Konmask, every GE UR5EH CPU Board undergoes a rigorous verification process before shipment:
- Step 1 — Provenance Verification: All units are traced to authorized GE distribution channels or documented industrial decommissioning projects. No gray-market or counterfeit sources.
- Step 2 — Visual & Physical Inspection: Board-level inspection for component integrity, solder joint quality, connector condition, and label authenticity against GE OEM specifications.
- Step 3 — Functional Bench Testing: Where applicable, units are powered up and tested for boot sequence, communication port functionality, and firmware version verification.
- Step 4 — Documentation Package: Each unit ships with available test records, firmware version documentation, and a Konmask quality inspection certificate.
How to Source This Part
- Submit an RFQ — Email support@konmask.com with your required quantity, condition preference (new/surplus/refurbished), and delivery timeline
- Receive a Quote — Our sourcing team responds within 1 business day with pricing, availability, and lead time
- Order Confirmation — Confirm your purchase order; we accept T/T bank transfer, PayPal, and major credit cards
- Inspection & Dispatch — Units are inspected, photographed, and securely packaged for international shipment via DHL, FedEx, or UPS
- After-Sales Support — Konmask provides 90-day warranty on tested surplus units and full OEM warranty pass-through on new stock
Application-Specific FAQ
Q: Is the UR5EH compatible with all GE UR Series relay models?
A: The UR5EH is designed for the UR platform chassis. Compatibility depends on the specific relay model (C60, D60, F60, G60, L90, T60, etc.) and firmware version. Please provide your relay model number when requesting a quote so we can confirm compatibility.
Q: Can I replace just the CPU board without replacing the entire relay?
A: Yes. The UR Series modular design allows individual board replacement. The UR5EH can be swapped in the field. We recommend consulting GE’s UR Hardware Manual or contacting our technical team for guidance on your specific installation.
Q: What firmware version does the UR5EH support?
A: Firmware versions vary by unit. We document the installed firmware version for each unit we ship. GE EnerVista software can be used to upgrade firmware in the field.
Q: Do you supply the full UR Series relay system or only individual boards?
A: Konmask supplies both complete UR Series relay assemblies and individual replacement modules including CPU boards, I/O modules, power supplies, and communication cards.
Q: What is the lead time for the GE UR5EH?
A: In-stock units ship within 3–5 business days. For sourced or refurbished units, lead time is typically 2–4 weeks. Contact us for current availability.
Q: Do you provide export documentation for international orders?
A: Yes. Konmask provides full commercial invoices, packing lists, certificates of origin, and can assist with export licensing requirements for controlled items.
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