Description
ABB 1MRK002239-BBR01 Power Supply Module
Product Introduction
A protection relay can have perfectly healthy processor and I/O boards and still remain completely unavailable when its rack power-supply card fails. ABB 1MRK002239-BBR01 is identified in a utility procurement specification as the P1 card, PSM slot, for an ABB high-voltage relay. Other component records associate the article with the SR91C790 type code and describe it as a power supply module.
This is a board-level replacement item rather than a generic DIN-rail power supply. That distinction matters during maintenance: the correct input variant, mechanical interface, backplane connection, and host relay configuration have to match the installed system. Public supplier data contains conflicting electrical ratings for this article, so the complete 1MRK002239-BBR01 / SR91C790 identification should be matched against the relay documentation before energizing a replacement.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 1MRK002239-BBR01 |
| Associated Type Code | SR91C790 |
| Manufacturer / Brand | ABB |
| Product Type | Power Supply Module (PSM) |
| Card Position | P1 |
| Slot | PSM |
| Primary Application | ABB high-voltage protection relay systems |
| System Family | ABB RE_5xx / 670-series protection equipment |
| Board Function | Internal relay/rack power supply |
| Installation Method | Plug-in card / dedicated relay subrack position |
| Communication Protocol | Not applicable as the primary function |
| Output Voltage | Verify against the exact ABB hardware documentation |
| Input Voltage | Verify exact BBR01 hardware variant before connection |
| Operating Temperature | Verify against the host relay specification |
| Protection Rating | Determined by the host relay/subrack assembly |
The P1 / PSM identification is directly supported by a utility procurement document that lists “Card = P1, Slot = PSM, Article = 1MRK002239-BBR01.”
Application Scenarios & Pain Points
Protection Relay Power-Supply Replacement
When an ABB high-voltage protection relay does not boot, loses its display, or shows a complete loss of internal power, the PSM is one of the hardware areas that must be investigated. A failed supply can make otherwise functional processor, communication, and I/O assemblies appear dead.
ABB 670-Series Maintenance
The part is repeatedly associated with ABB 670-family protection hardware and the SR91C790 identifier. Procurement records also place it directly in the P1/PSM position of an ABB high-voltage relay.
1MRK002239-BBr01
Legacy Relay Spare Stock
For plants maintaining older protection equipment, the exact board article is more useful than a generic description such as “ABB relay power supply.” Keeping the complete suffix, board label, and host relay ordering information in the spare-parts database reduces the chance of receiving the wrong hardware variant.
Troubleshooting an Unpowered IED
Before condemning the PSM, measure the station auxiliary supply at the relay input and check fuses, terminal wiring, grounding, and any upstream DC distribution. A replacement PSM will not correct a missing or incorrectly configured auxiliary supply.
Related Products
- ABB SR91C790 — Associated type/model identifier repeatedly linked with 1MRK002239-.
- ABB 1MRK002239 — Base article designation used in several component records for this power-supply family.
- ABB 1MRK002239-BBR03 — Related SR91C790 power-supply article appearing in historical component-import records; do not assume BBR03 is a direct replacement for without checking the relay configuration.
- ABB 1MRK000508-CD — Binary Input Module used in ABB protection-relay hardware; functionally different from the PSM.
- ABB 1MRK000614-AB — Binary Output Module family with 24 relay outputs; this is an I/O function rather than a power-supply function.
- ABB 1MRK002246-BE — Another ABB relay module appearing in the same protection-hardware ecosystem; verify exact relay application before substitution.
Engineer’s Guide — Field Pitfalls to Avoid
1. Verify the P1/PSM position.
The exact ABR01 article is documented as P1 / PSM. Do not treat it as a general-purpose ABB power module that can be installed in another card position.
2. Do not copy supplier voltage specifications into the datasheet without verification.
Public listings disagree substantially. One source claims 24 VDC output, while another describes wide AC/DC input and multiple internal rails. A separate historical import record associates the family with a 90–250 VDC version, but that record concerns BBR03, not necessarily .
3. Match the complete article number.
The difference between and BBR03 is not cosmetic. Treat the suffix as part of the procurement specification.
4. Check the station auxiliary voltage first.
Before replacing the PSM, confirm the actual voltage delivered to the relay and compare it with the installed supply variant. A healthy replacement board can be damaged by an incorrect auxiliary supply.
5. Inspect the original nameplate and PCB markings.
For used or refurbished inventory, request clear photographs showing 1MRK002239-, , revision information, and any additional ABB/EFORE identification.
6. Do not assume a generic 24 VDC power supply is an alternative.
This is a protection-relay PSM integrated into the relay architecture. Mechanical fit, backplane connections, voltage rails, monitoring circuits, and protection functions all matter.
FAQ
What is ABB 1MRK002239-?
ABB 1MRK002239- is a Power Supply Module (PSM) used in ABB high-voltage protection relay hardware. A utility procurement document identifies it specifically as the P1 card in the PSM slot.
What is ?
is an associated type/model identifier used with the 1MRK002239- power-supply board in multiple component records.
Is 1MRK002239- a PLC power supply?
It should not be categorized as a conventional PLC power supply. Its documented application is as a PSM card within ABB protection-relay hardware, specifically the P1 position in the cited high-voltage relay configuration.
What voltage does 1MRK002239- use?
The publicly available data is not sufficiently consistent to state one definitive input/output rating for the ABR01 suffix. Some secondary records claim wide AC/DC input and regulated internal rails, while other listings give different values. For procurement, use the original relay documentation and the nameplate of the installed board as the controlling reference.
Is 1MRK002239- compatible with ABB Relion 670 equipment?
The part is associated with ABB 670-family protection equipment and the identifier. Compatibility still needs to be checked against the complete relay ordering code and PSM variant rather than inferred from the family name alone.
Can 1MRK002239-BBR03 replace ?
Do not treat it as an automatic drop-in replacement. Historical records show 1MRK002239-BBR03 as another -related power-supply article, but a different suffix requires an ABB compatibility check before substitution.
What should be verified before purchasing a replacement?
Confirm the complete 1MRK002239- article number, marking, host relay model and ordering code, P1/PSM position, station auxiliary voltage, hardware revision, and connector/backplane arrangement. For used inventory, request actual board and nameplate photographs rather than relying only on a catalog title.
