The ABB 1MRK002239-BBR02 SR91C790 is a specialized power supply module engineered for high-availability industrial control environments. This updated variant provides stable DC power to internal electronics, ensuring consistent performance for protection relays and automated monitoring systems under fluctuating input conditions.

 

Product Parameters

• Model: SR91C790 / 1MRK002239-BBR02
• Input Voltage: 48-125V DC (Low-mid range variant)
• Output Voltage: Regulated DC bus output
• Power Output: 30W – 50W (Standard load)
• Humidity Range: 5% to 95% Non-condensing

 

Product Specifications

• Type: Plug-in Power Module
• Dimensions: Standard 6U height / 4C width
• Enclosure: Metal frame for heat dissipation
• Connector: Standard European multi-pin backplane
• Thermal Protection: Integrated automatic shutdown

 

Application Fields

• Substation Control: Reliable power source for IEDs.
• Marine Automation: Powering onboard monitoring consoles.
• Process Industries: Supporting DCS/PLC hardware in plants.
• Energy Management: Use in smart grid protection logic.

Product Q&A

• Q: How does the -BBR02 differ from the -BBR01?
  • A: The -BBR02 is typically optimized for a lower DC input range compared to the universal AC/DC -BBR01 version.
• Q: Does this module include over-voltage protection?
  • A: Yes, it features built-in surge and over-voltage protection to safeguard sensitive internal circuitry.
• Q: Can the status be monitored remotely?
  • A: Yes, through the system’s diagnostic bus and integrated front panel status LEDs.

 

Similar Product Recommendations

• ABB 1MRK002239-BBR01 Power Supply Module
• ABB 1MRK002266-AAr00 Optical Ethernet Module
• ABB RXMB 1 1MRK 000 863-AN Relay