ABB | 1MRK002239-BBR01 | SR91C790 Power Supply Module

Description

The ABB 1MRK002239-BBR01 SR91C790 is a high-reliability power supply module designed for industrial automation and protection systems. It ensures stable DC voltage delivery to critical control components, featuring robust electromagnetic compatibility and high efficiency for long-term continuous operation.

 

Product Parameters

• Model: SR91C790 / 1MRK002239-BBR01
• Input Voltage: 110-250V DC / 100-240V AC
• Output Voltage: Regulated DC output for internal bus
• Efficiency: >85% at full load
• Operating Temperature: -25°C to +70°C

 

Product Specifications

• Mounting Type: Rack-mounted / Plug-in module
• Weight: Approximately 1.2 kg
• Cooling: Natural convection
• Protection Rating: IP20
• Isolation: 2.5 kV dielectric strength

 

Application Fields

• Power Grid Automation: Used in protection and control terminals.
• Substation Systems: Powering IEDs (Intelligent Electronic Devices).
• Industrial Plants: Support for heavy-duty process control systems.
• Renewable Energy: Control systems for wind and solar farms.

 

Product Q&A

• Q: What is the main function of the SR91C790?
  • A: It converts external AC or DC power into stabilized internal voltage for ABB protection relays and control units.
• Q: Is this module hot-swappable?
  • A: No, power should be disconnected before removal or installation to prevent electrical arcing.
• Q: How do I identify a module failure?
  • A: Check the front panel LED indicators; a “Status” or “Power OK” light off usually indicates a fault.

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One year warranty, special discount after sale
The company focuses on DCS, PLC, robot, large servo four systems
The main products are all kinds of module/card, controller, touch screen, servo drive
The company's advantages: the supply of imported original products, professional production of accessories
Fast delivery time, complete supply, The seller has more than $1526000 worth of industrial control products inventory
We Can transport to the world！！！
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[service contact information]
Purchase and consultation hotline: +8613365909307 (Whatsapp/ Wechat)
E-mail: dcsplcsales@gmail.com
Contact Person: Simon
① 24-hour email reply (12 hours);
② For shipment to countries outside Asia, please contact the seller.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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