GE UR SHH Control Module – Obsolete UR Series Spare Part

Technical Dossier

Product Details And Specifications

GE UR SHH Control Module – Obsolete UR Series Spare Part

When a GE UR SHH Control Module fails, the consequences extend far beyond a single component replacement. The GE UR Series protection relay platform has been the backbone of substation automation and power system protection in utilities, oil & gas facilities, and heavy industrial plants for decades. A single failed SHH module can force an unplanned shutdown of an entire protection zone — and if the OEM no longer supports the platform, the alternative is a full relay panel replacement project. Engineering, commissioning, testing, and regulatory re-certification for a modern relay system can run into the hundreds of thousands of dollars, with project timelines stretching 12 to 24 months. DriveKNMS holds verified physical stock of the GE UR SHH Control Module. This is not a lead-time quote — this is available inventory, ready to ship.

Technical Specifications

Note: Electrical parameters specific to firmware revision and chassis configuration. Confirmed specifications are provided upon request with unit serial number. No parameters are stated here that cannot be verified — accuracy is a matter of equipment safety.

Solving the Discontinued Hardware Crisis

GE Grid Solutions formally transitioned the UR Series platform through multiple hardware generations. Older SHH-designated control modules are no longer produced, and OEM repair services for legacy UR hardware have been progressively withdrawn. For plant engineers and substation managers, this creates a hard operational constraint: the protection relay system continues to perform its critical function, but the spare parts supply chain has collapsed.

The SHH module sits at the interface between the relay's internal logic and the operator — it handles local control, status indication, and in many configurations, direct trip command acknowledgment. There is no generic substitute. A replacement must be the correct hardware revision to maintain firmware compatibility and IEC 61850 or DNP3 communication integrity with the existing SCADA infrastructure.

Facilities that have invested in GE UR-based protection schemes face a straightforward calculation: source verified spare modules now, or budget for a full protection system replacement on an emergency timeline. The cost differential is not marginal. DriveKNMS specializes in locating, verifying, and supplying exactly these components — the ones that OEMs no longer stock and distributors no longer list.

How to extend your GE UR Series system life by 5–10 years:

• Maintain a minimum two-unit buffer of each critical module type (SHH, CPU, power supply, I/O cards). One unit in service, one verified spare on the shelf. This single practice eliminates the most common cause of emergency shutdowns in legacy relay systems.
• Document your hardware revisions now. UR Series modules are revision-sensitive. Record the exact part suffix and firmware version of every installed module before a failure event forces you to identify them under pressure.
• Negotiate long-term supply agreements with specialist distributors. Spot-market pricing for obsolete industrial components increases sharply as global inventory depletes. Locking in supply at current pricing is a measurable cost-avoidance strategy.
• Defer full system replacement until the next planned capital cycle. A verified spare module purchase at a fraction of a percent of the replacement project cost buys 5–10 years of continued operation on a proven, stable platform — without the commissioning risk of introducing new relay logic into a live protection scheme.
• Conduct annual condition assessments. Electrolytic capacitor degradation, contact oxidation on terminal blocks, and battery backup failure are the primary age-related failure modes in UR Series hardware. Scheduled inspection catches these before they become unplanned outages.

Condition & Reliability Assurance

DriveKNMS applies a structured 5-step quality process to all obsolete and legacy industrial components before shipment:

1. Visual and mechanical inspection: Housing integrity, connector pin condition, label legibility, and absence of physical damage or prior repair attempts.
2. Electrolytic capacitor assessment: Capacitor aging is the primary failure mode in electronics manufactured more than 10 years ago. Units showing evidence of capacitor bulge, leakage, or ESR deviation are quarantined.
3. Firmware and hardware revision verification: The module's revision markings are cross-referenced against the customer's installed base to confirm compatibility before shipment.
4. Pin and connector corrosion inspection: Backplane connector pins are inspected under magnification. Oxidation or fretting corrosion on contact surfaces is addressed prior to release.
5. Functional verification where applicable: Units are powered and checked for basic operational response where test infrastructure permits. Test records are retained and available upon request.

Units that do not pass all five stages are not offered for sale. Stock condition (new surplus or refurbished) is disclosed explicitly in every quotation.

Key Features for System Maintenance

• Drop-in replacement: The GE UR SHH module installs directly into the existing UR chassis backplane. No rewiring, no relay logic modification, no engineering change order required.
• No reprogramming required: Settings are stored in the relay's non-volatile memory, not in the SHH module itself. Swapping the module does not affect protection settings, trip logic, or communication configuration.
• Avoids engineering reconstruction costs: A full UR Series panel replacement requires new relay engineering, factory acceptance testing, site commissioning, and protection scheme re-validation. A verified spare module eliminates all of that expenditure.
• Maintains existing SCADA integration: No changes to DNP3, IEC 61850, or Modbus point maps. The replacement module operates transparently within the existing communication architecture.
• Preserves regulatory compliance continuity: In regulated industries, replacing a protection relay triggers re-approval processes. Maintaining the original hardware platform avoids this administrative burden entirely.

FAQ

What warranty applies to an obsolete module like the GE UR SHH?
DriveKNMS provides a 90-day warranty on all refurbished units and a 12-month warranty on new surplus stock, covering functional failure under normal operating conditions. Warranty terms are confirmed in writing with each order.

How do I know the unit is genuine and not counterfeit?
All GE UR Series modules supplied by DriveKNMS are sourced from documented industrial decommissioning projects or authorized surplus channels. Physical markings, PCB construction, and revision codes are verified against known-good reference units. We do not source from unverified secondary markets.

Should I buy more than one unit?
For any protection relay module that is confirmed obsolete, the answer is yes. Global inventory of UR SHH modules is finite and depleting. Current pricing reflects today's availability. Facilities that have purchased buffer stock report significantly lower total maintenance costs over a 5–10 year horizon compared to those sourcing on an emergency basis after a failure event.

Can you supply other GE UR Series modules?
Yes. DriveKNMS maintains inventory across the UR Series platform including CPU modules, power supply cards, I/O modules, and communication cards. Contact us with your full part number list for a consolidated quotation.