The ABB 1MRK002239-BBr04, also cataloged as the 1MRK002239-BB Power Supply Module, operates as a dedicated hardware component for high-efficiency DC-to-DC regulation, auxiliary power distribution, and continuous input rail validation within ABB Relion series protection and automation platforms.
Hardware Specifications
Parameter
Specification
Model
1MRK002239-BBr04 / 1MRK002239-BB
Brand
ABB
Origin
Factory Standard Global Site
Weight
0.53 kg
Dimensions
74 mm x 370 mm x 361 mm
Operating Temp
-25 to +70 deg C
Power Consumption (No Load)
<= 5 W passive baseline
Input Voltage Range
90–250 V DC wide-range auxiliary feed
Output Voltage
24 V DC (nominal) regulated logic rail
Output Current Capacity
2.5 A typical
Conversion Efficiency
> 90% at full rated load
Product Type
Power Supply Modules
Enclosure Protection Class
IP20
Mounting Formats
Plug-in relay rack or 35 mm DIN rail installation
Industrial Control and Drives (PLC/DCS/Drives) Attributes
The 1MRK002239-BBr04 manages high-frequency switched-mode step-down voltage conversion and continuous load monitoring directly across the internal subrack backplane interface. To supply a stable 24 V DC auxiliary logic rail to adjacent processing cards and communication blocks concurrently without high thermal dissipation, the module features a high-efficiency topology operating above 90%. This regulated conversion path smooths out wide primary voltage variations (90–250 V DC), ensuring that backplane bus communication velocity Licences verification routines remain completely unaffected by upstream battery bank or substation supply fluctuations.
Because this power infrastructure card sustains critical fault-monitoring loops inside substation environments, its layout incorporates advanced electromagnetic compatibility (EMC) shielding. The internal filter networks block high-frequency common-mode spikes and industrial switching noise from passing into the low-voltage processing kernel. The module architecture maintains absolute firmware flash compatibility profiles across connected systems, enabling flexible I/O density scaling adjustments without injecting ripple voltages into Profinet / EtherNet/IP deterministic networks, thereby suppressing data corruption and preventing backplane transport timeouts.
