ABB 1MRK000005-63 Control Board — Relion 650 Dual Ethernet IEC 61850 GOOSE Expansion Card

Product Overview

The ABB 1MRK000005-63​ is a plug-in Control / Communication Expansion Board within ABB’s Relion 650 family of protection and control relays. It is not a standalone programmable controller: it is an internal printed-circuit assembly designed to occupy the expansion slot of a Relion 650 “H-version” relay and add a second, independent Ethernet path to a host that originally had only a single network port. In its most common form the ABB 1MRK000005-63​ is paired with the parent article number 1MRK000195-AAR02, and it turns a conventional feeder or motor protection relay into a fully networked IEC 61850 intelligent electronic device (IED).

The role of the ABB 1MRK000005-63​ is to give the host relay simultaneous presence on two physically separate networks — typically the process bus or GOOSE network on one port and the station bus or SCADA network on the other. This is not a cosmetic upgrade: it is the architectural basis for security zoning in digital substations, allowing trip and status traffic to be isolated from corporate or management traffic. The board natively supports IEC 61850 Edition 2 (GOOSE publishing and subscription, MMS reporting, Sampled Values), Modbus TCP and DNP3, so the relay can exchange protection events and measurements with an ABB MicroSCADA / 800xA system, a third-party SCADA host, or an IEC 61850 gateway without an external protocol converter.

Installation is deliberately simple: the ABB 1MRK000005-63​ plugs vertically into the host relay’s internal expansion connector and is retained by the relay’s own front mounting hardware, which also ties the board shield to the relay chassis for EMI control. Power comes from the host relay backplane (typically 24 VDC or 48 VDC depending on the host variant), so there is no separate supply wiring. Configuration — IP addresses, VLAN tagging, GOOSE subscriptions and time synchronization — is performed through ABB PCM600 engineering software.

Compatibility note:​ the part number 1MRK000005-63 also appears in documentation for legacy SPAJ motor-protection relay CPU boards and REX/REL 521 main boards. These are mechanically and functionally different assemblies. Before ordering, confirm that the host relay is a Relion 650 H-version with an expansion slot; if the target device is a SPAJ 110C/130C/140C or a REX/REL 521, the ABB 1MRK000005-63​ in the Relion 650 form described here is not the correct spare.

Technical Specifications