Power System Protection Solution — GE UR 6CH Digital I/O Module | Universal Relay (UR) Series
The GE UR 6CH Digital I/O Module is a plug-in expansion card designed for GE’s Universal Relay (UR) platform — the industry benchmark for numerical protection relays deployed across transmission, distribution, and generation assets. With 6 channels of configurable digital input/output, this module extends the I/O capacity of UR-series relays to meet the demanding signal-density requirements of modern substation automation and protection schemes.
Procurement engineers and protection specialists specify this module when upgrading legacy relay panels, expanding bay-level I/O, or commissioning new IEC 61850-compliant substations where deterministic digital signaling is non-negotiable.
Where This Product Is Used
The GE UR 6CH module is deployed across a wide range of high-reliability power and industrial environments:
- Transmission Substations (115 kV – 765 kV): Breaker failure initiation, inter-trip signaling, and bus protection schemes requiring dense digital I/O within UR-series relay chassis (T35, T60, L90, etc.).
- Distribution Automation: Feeder protection relays (F35, F60) where additional binary inputs are needed for SCADA status monitoring, recloser control, and load-shedding logic.
- Generator Protection Panels: G60 and G30 relay applications requiring auxiliary contact inputs for generator breaker status, excitation system alarms, and turbine trip signals.
- Motor Protection Systems: M60 relay installations in large motor control centers (MCCs) for thermal model inputs, differential protection, and process interlock signals.
- IEC 61850 GOOSE-Enabled Substations: Hybrid schemes where hardwired digital I/O supplements GOOSE messaging for critical trip/close functions with deterministic latency.
- Industrial Power Systems (Oil & Gas, Mining, Petrochemical): Hazardous-area switchgear panels requiring certified, high-density I/O expansion within proven relay platforms.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model / Part Number | UR 6CH |
| Manufacturer | GE Grid Solutions (formerly GE Multilin) |
| Platform Compatibility | GE Universal Relay (UR) Series — T35, T60, L90, F35, F60, G30, G60, M60, C60, B30, B90, D60, etc. |
| Channel Count | 6 Channels (Digital I/O) |
| Module Type | Plug-in I/O expansion card for UR chassis rear slots |
| Input Voltage Range | Wet contact: 17–300 V DC / 20–265 V AC (model-dependent) |
| Output Type | Form-A (NO) or Form-C (NO/NC) electromechanical relay contacts |
| Output Contact Rating | 8 A continuous / 30 A make (resistive load, 250 V AC / 30 V DC) |
| Input Threshold | Programmable via UR settings (EnerVista UR Setup software) |
| Isolation | Optical isolation between field wiring and relay logic |
| Operating Temperature | –40°C to +85°C |
| Humidity | 5–95% RH, non-condensing |
| Module Weight | 268 g |
| Certifications | IEEE C37.90, IEC 60255, CE, UL (relay platform-level) |
| Communication | Configured via UR chassis backplane; no standalone communication port |
| Firmware | Managed by host UR relay firmware (EnerVista compatible) |
Note: Exact I/O configuration (input vs. output channel split) is defined by the specific UR module variant ordered. Confirm channel assignment with GE documentation or Konmask technical support before installation.
Why Engineers Specify This Model
- Platform-Native Expansion: Slots directly into UR chassis rear bays — no external wiring marshalling, no additional power supply, no firmware integration effort. The host relay auto-detects the module.
- High Contact Reliability: Electromechanical relay outputs with gold-flashed contacts ensure reliable switching even at low-level signal currents common in modern microprocessor-based control systems.
- Optical Isolation: Full galvanic isolation between field circuits and relay logic prevents ground loops and protects relay electronics from transient overvoltages in substation environments.
- Wide Voltage Compatibility: Accepts both AC and DC wet contact inputs across a broad voltage range, accommodating mixed station battery systems (48 V, 110 V, 125 V, 220 V DC).
- EnerVista Software Integration: All channel assignments, input thresholds, and output logic are configured through GE’s EnerVista UR Setup — the same tool used for the host relay, eliminating separate configuration workflows.
- Long Service Life: Designed to IEC 60255 environmental and mechanical standards; rated for the 20–30 year service life expected of substation protection equipment.
- Drop-In Replacement: Identical form factor to OEM modules — no panel modifications required for like-for-like replacement in existing UR relay installations.
Complete System Bill of Materials
A complete UR-series relay installation incorporating the 6CH Digital I/O Module typically includes:
- Host UR Relay Chassis — e.g., GE T60 Transformer Protection System, GE F60 Feeder Protection Relay, GE G60 Generator Protection Relay
- GE UR 6CH Digital I/O Module (this product) — I/O expansion for additional binary signals
- UR Power Supply Module — 125/250 V DC or 120/240 V AC input (chassis-specific)
- UR CPU / Main Processing Module — hosts relay logic, settings, and communication stack
- UR Communication Module — IEC 61850, DNP3, Modbus, or IEC 60870-5-104 (application-dependent)
- UR Analog I/O Module — for CT/VT inputs (current and voltage measurement channels)
- EnerVista UR Setup Software License — for relay configuration, commissioning, and event retrieval
- Fiber Optic or Copper Communication Cable — for SCADA/DCS integration
- Terminal Blocks & Wiring Accessories — per panel design drawings
Contact support@konmask.com for complete UR system BOM assistance and cross-reference support.
Compliance & Industry Standards
- IEEE C37.90: Relays and Relay Systems Associated with Electric Power Apparatus
- IEEE C37.90.1: Surge Withstand Capability (SWC) for protective relays
- IEEE C37.90.2: Radiated Electromagnetic Interference (EMI) withstand
- IEC 60255: Measuring relays and protection equipment — environmental, mechanical, and electrical requirements
- IEC 61850: Communication networks and systems for power utility automation (host relay platform)
- NERC CIP: Compatible with CIP-compliant substation architectures when deployed within UR relay systems
- CE Marking: Compliant with EU Low Voltage Directive and EMC Directive
- UL Listed: Relay platform UL certification (verify specific UR model)
Quality Assurance & Sourcing
Konmask.com sources GE UR series modules through verified industrial automation supply channels with full traceability:
- Authenticity Verification: Every module is inspected for GE OEM labeling, firmware version consistency, and physical condition prior to dispatch.
- Functional Pre-Check: Modules are bench-tested for contact continuity, optical isolation integrity, and backplane connector condition before shipment.
- Traceability Documentation: Serial number records maintained; certificates of conformance available on request for regulated utility procurement.
- Packaging: Anti-static ESD packaging with foam cushioning; original GE packaging preserved where available.
- Warranty: 12-month Konmask warranty covering manufacturing defects and premature failure under normal operating conditions.
- Returns: 30-day return window for unused, uninstalled modules in original packaging.
How to Source This Part
- Confirm Compatibility: Verify your UR relay model and available rear chassis slots. Check the UR Order Code on the relay nameplate or GE documentation to confirm 6CH module compatibility.
- Request a Quote: Email support@konmask.com or call +0086 19859288691 with your relay model, required quantity, and delivery timeline.
- Receive Proforma Invoice: Konmask issues a proforma invoice with lead time, shipping options (DHL Express, FedEx, sea freight), and payment terms within 24 business hours.
- Order Confirmation & Payment: Confirm order and complete payment via T/T bank transfer, PayPal, or other agreed method.
- Dispatch & Tracking: Module ships within 1–3 business days from stock. Full tracking number provided upon dispatch.
- Technical Support: Konmask engineering team available for installation guidance, EnerVista configuration support, and compatibility verification post-delivery.
Application-Specific FAQ
Q: Which GE UR relay models accept the UR 6CH Digital I/O Module?
A: The 6CH module is compatible with all UR-platform relays that have available rear I/O expansion slots, including T35, T60, L90, F35, F60, G30, G60, M60, C60, B30, B90, and D60. Confirm slot availability in your specific relay’s order code and hardware manual.
Q: Can the 6CH module be hot-swapped while the relay is energized?
A: GE does not recommend hot-swapping I/O modules in energized UR relays. De-energize the relay and follow GE’s module replacement procedure in the UR Hardware Manual to avoid protection system disruption.
Q: How are the 6 channels allocated between inputs and outputs?
A: Channel allocation (input vs. output) depends on the specific UR 6CH variant. Some variants are all-input, some all-output, and some mixed. Provide your relay order code to Konmask for exact channel configuration confirmation.
Q: What input voltage levels are supported for wet contact inputs?
A: The module supports a wide range including 24 V DC, 48 V DC, 110 V DC, 125 V DC, 220 V DC, and 120/240 V AC wet contact inputs. Threshold levels are programmable via EnerVista UR Setup software.
Q: Is this module compatible with IEC 61850 GOOSE messaging?
A: The 6CH module provides hardwired digital I/O. IEC 61850 GOOSE functionality is handled by the UR relay’s communication module and CPU. The 6CH module’s outputs can be mapped to GOOSE-triggered logic within the relay’s FlexLogic programming environment.
Q: What is the lead time for the GE UR 6CH module?
A: In-stock units ship within 1–3 business days. For out-of-stock situations, typical lead time is 2–6 weeks depending on sourcing channel. Contact Konmask for real-time availability.
Q: Do you provide installation and commissioning support?
A: Yes. Konmask’s engineering team provides remote technical support for module installation, EnerVista configuration, and relay commissioning. On-site support can be arranged for large-scale projects.
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