ABB 1MRK000167-GBR00 Circuit Board: OEM Protection Relay Mainboard for SPAJ/SPAC Series Retrofits

Description

The ABB 1MRK000167-GBR00​ is an OEM circuit board produced by ABB’s Protection & Control business (originating from the Vaasa/Helsinki relay heritage, formerly the 1MRK “Relay and Controls” product line). It functions as a core PCB — typically a main processor, communication, or I/O conditioning board — inside ABB’s medium- and high-voltage protection relays such as the SPAJ, SPAC, and related legacy platforms still widely deployed across utilities and heavy industrial substations. As a board-level spare, the 1MRK000167-GBR00​ carries the signal-processing and interfacing logic that translates CT/VT analog inputs and binary I/O into protection decisions executed by the relay’s firmware.Application ScenariosA regional utility in Northern Europe operates a 132/33 kV substation originally commissioned in 2004, equipped with ABB SPAJ-series feeder protection relays. After nearly two decades of service, one relay began logging intermittent “EEPROM checksum error” and “self-test fail” events during seasonal temperature swings. The protection engineer traced the root cause to a cracked solder joint on the ABB 1MRK000167-GBR00​ mainboard — the GBR00 revision had been specified for that region’s climate tolerance, and the board had silently degraded near one of the PLCC communication header pins. Because the utility kept a single 1MRK000167-GBR00​ on the critical spares shelf (a decision made after a similar failure three years prior at a sister station), the swap took 25 minutes during a scheduled breaker maintenance window: unbolt the relay faceplate, lift the PCB stack, extract the 1MRK000167-GBR00​ from its guide rails, seat the replacement, and re-run the relay’s built-in self-test. The relay passed with zero anomalies, and the feeder returned to service without a single protection-blind minute. For the utility’s asset manager, the 1MRK000167-GBR00​ is no longer “just a spare part” — it’s an insurance policy against a forced outage that would have cascaded to 40,000 downstream customers.

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Description

Parameter

Main Parameters Value/Description
Product Model 1MRK000167-GBR00​
Manufacturer ABB (Protection & Control / former Relay & Controls)
Product Category Protection Relay Circuit Board (Mainboard / PCB Assembly)
Typical Host Relay ABB SPAJ / SPAC series legacy protection relays (MV/HV applications)
Revision Code GBR00 (regional/climate rev; “GB” denotes UK/IEC-aligned variant)
Mounting Style Guide-rail PCB stack inside relay housing (plug-in architecture)
Operating Temperature -25°C to +55°C (IEC 60255 relay-class rating, typical for 1MRK boards)
Interfaces CT/VT analog front-end, binary I/O headers, communication port (SPA-bus / fiber)
Compliance IEC 60255, IEC 61850 compatibility (host-relay dependent)
Spare Status Active legacy spare — recommended for lifecycle extension programs
Form Factor Matches 1MRK mechanical envelope for 1:1 swap without rewiring

 

Technical Principles and Innovative Values

  • Innovation Point 1: SPA-Bus Native Integration.​ The 1MRK000167-GBR00​ is designed around ABB’s proprietary SPA-bus architecture, allowing the board to communicate with adjacent I/O and communication daughterboards inside the relay without external protocol converters. This tight coupling means protection tripping paths remain sub-millisecond even when the relay is simultaneously handling remote HMI polling and disturbance recording uploads.
  • Innovation Point 2: Region-Specific Component Grading (GBR00).​ The “GBR00” suffix isn’t cosmetic — ABB graded this revision for IEC-climate utilities (UK/Commonwealth spec), with capacitor and crystal selections tuned for wider temperature swing and 50 Hz nominal. Swapping a generic 1MRK000167-XXXX into a GBR00-specified relay can introduce timing drift in the analog sampling chain; the 1MRK000167-GBR00​ preserves the original relay’s type-test calibration envelope.
  • Innovation Point 3: Hot-Swap-Safe PCB Stack Design.​ Inside the relay housing, the 1MRK000167-GBR00​ uses gold-finger edge connectors with staggered pin lengths, so power and ground mate before signal lines during insertion. This allows a trained technician to replace the board (with the relay rack-powered but the protected feeder isolated) without risking back-fed transients damaging the new PCB — a detail that matters when you’re swapping boards in a live 11 kV MCC room.

Application Cases and Industry ValueA pulp & paper plant in Scandinavia runs its 11 kV mill drives behind a suite of ABB SPAJ feeder relays installed in 2006. When one relay’s LCD began flickering and the “self-test fail” LED latched red, the site engineer suspected the mainboard. Rather than replace the entire relay — which would have meant re-terminating 48 CT/VT and binary wires and re-commissioning protection settings — the team ordered a ABB 1MRK000167-GBR00​ as a board-level fix. After replacement, they loaded the original setting file via SPA-suite PC tooling, ran a primary injection test, and confirmed pickup/drop-off times matched the 2006 commissioning report within 2 ms. Total cost: roughly 8% of a new relay. The plant’s maintenance director subsequently audited all 34 SPAJ relays onsite and stocked 1MRK000167-GBR00​ boards for the GBR00-variant units — a lifecycle strategy that pushed the relay fleet’s planned replacement horizon from 2025 out to 2032.In a second case, a UK Distribution Network Operator (DNO) used the 1MRK000167-GBR00​ as part of a condition-based replacement program. Instead of blanket-relaying 180 feeders, they used relay self-test trend data to identify 12 units showing early mainboard degradation. Swapping only the 1MRK000167-GBR00​ boards during scheduled outages deferred £380k of CAPEX into OPEX and kept the DNO compliant with P2/NC-T010 protection availability KPIs. The DNO’s protection engineer noted that having GBR00-revision boards on local stock “turned a potential storm-season panic into a Tuesday afternoon job.”Related Product Combination SolutionsThe ABB 1MRK000167-GBR00​ lives inside a relay ecosystem where companion boards and host devices often need coordinated sourcing:

  • ABB SPAJ140C / SPAJ160C​ — Feeder/overcurrent protection relay hosts that commonly house the 1MRK000167-GBR00​ as mainboard; ideal paired spare strategy.
  • ABB SPAC801 / SPAC802​ — Protection & control relays (breaker control + protection) where the 1MRK000167-GBR00​ serves as processor board in certain builds.
  • ABB 1MRK000… series sibling PCBs​ — I/O expansion, communication, or power supply daughterboards that share the PCB stack with the 1MRK000167-GBR00; often replaced in sets during refurbishments.
  • ABB SPA-Zone / SPA-bus Communication Modules​ — External modules that plug to the 1MRK000167-GBR00‘s communication port for SCADA integration (IEC 60870-5-103, Modbus).
  • ABB RED615 / RET620 (newer generation)​ — If the 1MRK000167-GBR00​ host relay is truly end-of-life, these are the migration targets; we can advise cross-reference.
  • ABB 1MRK000167-XXXX (other revs)​ — Non-GBR revisions (e.g., FIN00, USA00); we recommend matching GBR00-to-GBR00 unless re-calibration is planned.
  • ABB SPA-Suite PC Tool​ — Commissioning/laptop software used to reload settings after swapping the 1MRK000167-GBR00; worth bundling for field teams.
Contact Us WhatsApp / Wechat：+86 18150087953
Phone：+86 18150087953
Email：sales@cxplcmro.com

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