ABB 1MRK002239-BBr01 Relion® 670 Power Supply Module | PSM Unit

Product Description

Overview

The ABB 1MRK002239-BBr01 is a high-reliability Power Supply Module (PSM) engineered for the Relion® 670 series of IEDs. Designed and manufactured in Switzerland, this compact unit ensures stable DC voltage delivery to IED processors, communication boards, and I/O modules, enabling uninterrupted operation in industrial substations and power plants.

Compact, modular, and robust, it is ideal for new installations, retrofits, or field replacements, supporting continuous operation even under fluctuating input conditions.

Technical Description

The 1MRK002239-BBr01 functions as a plug-in, switch-mode DC power converter. It converts the variable station battery voltage into regulated internal rails while maintaining galvanic isolation for sensitive electronics.

The "BB" in the ordering code denotes the supported input voltage range, while "r01" represents the hardware revision. The module is optimized for use with ABB Relion 670 series IEDs including RED670, REC670, and REG670 devices.

Key Performance Features

Input and Ride-Through

• Wide DC input range: typically 110–250 Vdc ±20%, compatible with most substation battery systems.

• Short-term ride-through (>40 ms) ensures continuity during transient dips without triggering a relay reset.

Electrical Isolation & Protection

• Galvanic isolation protects internal electronics from voltage spikes and surges.

• Internal self-diagnostics monitor output stability; low-voltage conditions trigger an Internal Relay Fault (IRF) signal.

Efficiency and Cooling

• High conversion efficiency minimizes internal heat.

• Designed for natural convection cooling, supporting a temperature range of -40°C to +70°C.

Reliability in Harsh Environments

• Fully compliant with IEC 60255 EMI/EMC standards for substation-grade performance.

• Inrush current limiting prevents upstream DC breaker trips during power-on sequences.

Technical Specifications

Maintenance Notes

• Ensure input voltage matches the station’s DC supply before replacing the module.

• Hot-swapping is only supported in specific hardware configurations; de-energizing the IED is recommended to prevent connector arcing.

Applications

• Internal DC power supply for ABB Relion 670 IEDs in substations.

• Reliable voltage conversion for processor, communication, and I/O modules.

• Retrofit or replacement in high-voltage switchyard environments.

FAQ

Q: What does the 1MRK002239-BBr01 power supply module do?
A: It converts fluctuating DC input from the station battery to stable, isolated internal voltages for IED operation.

Q: Can it handle voltage fluctuations?
A: Yes, it supports a wide input range (110–250 Vdc) and provides ride-through for brief dips.

Q: Is it compatible with REG670, REC670, and RED670?
A: Fully compatible across the Relion 670 series.

Q: Does it require active cooling?
A: No, it uses natural convection within the standard operating range (-40°C to +70°C).