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Description
Application Scenarios
On a 110 kV urban-suburban ring in Southeast Asia, the utility had twelve REF615 feeders installed in 2014 — all serial-only (RS-485 / Modbus RTU) talking to an aging bay controller. When the utility rolled out a new IEC 61850-based station bus for bus-differential interlocking and GOOSE trip propagation, ripping out twelve relays just for Ethernet wasn’t in the CAPEX envelope. The engineering team instead specified the 1MRK000195-AAR02 for each bay: power down the relay, undo two screws, seat the expansion card into the bottom slot, reboot, and load the IEC 61850 ICD through PCM600. Total per-bay downtime came in under 25 minutes, and the 1MRK000195-AAR02 gave each REF615 dual RJ45 ports with redundant LAN topology — exactly what the station-bus design called for. Six months later, when a third-party “compatible” clone card showed up in a neighboring station and started throwing “Expansion Card Not Recognized” faults after every relay firmware patch, the utility made 1MRK000195-AAR02 (ABB-original, 1MRK000005-63 traceable) their mandatory spare spec. For any engineer nursing a Relion 650 fleet that needs Ethernet without a forklift upgrade, the math usually lands the same way.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 1MRK000195-AAR02 (Component ref: 1MRK000005-63) |
| Manufacturer | ABB (Sweden origin) |
| Product Category | Communication Expansion PC Board (Relion 650 accessory) |
| Compatible Hosts | REF615, REM615, RET615, REX615 (Relion 650 series with bottom expansion slot) |
| Ethernet Interfaces | 2 × 10/100Base-TX (RJ45), dual-port redundancy supported |
| Protocols | IEC 61850 Ed.2 (GOOSE, MMS), Modbus TCP |
| Power Supply | Via host relay backplane (typical 24 V DC / 48 V DC, host-dependent) |
| Power Consumption | < 5 W |
| Operating Temperature | -20 °C to +60 °C |
| Protection / Mounting | IP20 (installed inside relay housing), plug-in expansion slot |
| Dimensions (board) | ~154 × 80 × 12 mm |
| Weight | ~60 g |
| Certifications | CE, UL, KEMA, IEC 61850 conformance |
Technical Principles and Innovative Values
- Innovation Point 1: True Plug-In Retrofit, Zero Relay Replacement. The 1MRK000195-AAR02 slots into the bottom expansion bay of any Relion 650 host that has the mechanical cutout — no rewiring, no CT/VT re-termination, no protection re-certification. In utility accounting, that turns a “replace the feeder relay” CAPEX line into a “spare card swap” OPEX line, often at 1/10 the cost.
- Innovation Point 2: Dual Ethernet with IEC 61850 Ed.2 Hardware Anchor. Many serial-era relays got “ethernet” through external gateway boxes that add latency and a single failure point. The 1MRK000195-AAR02 puts two RJ45 PHYs directly on the relay’s internal backplane, so GOOSE frames for bus-interlocking or fast transfer schemes travel at backplane speed with no external translator. Redundant LAN A/B topology is native.
- Innovation Point 3: ABB-Original Firmware Binding. Third-party clone expansion cards for Relion 650 circulate in the spare market; they frequently throw “Expansion Card Not Recognized” after a host relay firmware patch, because the clone’s EEPROM signature doesn’t match ABB’s signing chain. The 1MRK000195-AAR02 carries the official ABB 1MRK000005-63 component ID, so PCM600 and the host relay accept it across firmware generations without drama.
Application Cases and Industry Value
A provincial utility in Central Europe ran a fleet of 80+ REM615 motor-feeder relays across three 33 kV industrial substations, all commissioned before Ethernet became standard on the lower-tier configs. When the plant SCADA migration to IEC 61850 MMS rolled around, the integrator initially quoted full relay swaps. The protection engineer pushed back and standardized on the 1MRK000195-AAR02 instead. Over a single weekend outage window, the team upgraded 28 bays — power down, slot the 1MRK000195-AAR02, push the ICD from PCM600, verify GOOSE subscription with the bay controller, done. Total parts cost was roughly 8 % of the “replace-the-relay” quote, and the utility kept the original trip curves and arc-flash study that already sat on the REM615. Post-migration, the 1MRK000195-AAR02 units have run 18 months without a single expansion-slot fault; the engineer’s closure note read: “Next time a station goes IEC 61850, we buy the card, not the relay.”In a second case, a wind-farm O&M team used the 1MRK000195-AAR02 to add Ethernet to REF615 units on 35 kV collection-line feeders, so the farm’s central SCADA could pull disturbance records and CB status over MMS instead of sending a tech with a laptop to every nacelle. The <5 W draw from the backplane meant no additional DIN-rail PSU was needed in the already-cramped feeder pillar.
Related Product Combination Solutions
Build a coherent Relion 650 modernization kit around the 1MRK000195-AAR02 with these companion models:
- REF615 — The host feeder/line protection relay that the 1MRK000195-AAR02 slots into; most common deployment pair.
- REM615 — Motor-protection variant of Relion 650, same expansion slot, same 1MRK000195-AAR02 compatibility.
- RET615 — Transformer-protection sibling in the 650 family, also accepts the 1MRK000195-AAR02 for Ethernet uplift.
- REX615 — Compact Relion 650 variant for utility distribution; expansion slot compatible with 1MRK000195-AAR02 where fitted.
- ABB PCM600 — The engineering tool required to load the IEC 61850 ICD, map GOOSE, and bind the 1MRK000195-AAR02 to the host relay’s firmware.
- 1MRK000005-380 / 1MRK000614-ABr00 — Sibling PCB (logic/power board) inside Relion 615/630 hosts; useful cross-reference when diagnosing whether a fault is host-deep or expansion-deep.
- 1MRK000508-BBR00 — REF54_ series feeder relay with BBR communication module; the 1MRK000195-AAR02 is the spiritual successor concept for the 650 generation.
