1MRK002239 SR91C790 1MRK002239-BBR01 Power Supply Module , China 1MRK002239 SR91C790 1MRK002239-BBR01 Power Supply Module Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	1MRK002239 SR91C790 1MRK002239-BBR01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	1MRK002239 SR91C790 1MRK002239-BBR01
Type	Power Supply Module
Dimensions	23.2 x 16.7 x 3 cm
Weight	0.52 kg
Power Capacity	2000 W
Input Voltage Range	85–264 V AC / 100–240 V AC
Output Voltage	24 V DC ±10%
Efficiency	92% (at full load)
Operating Temperature	-20°C to +50°C

Description

The ABB 1MRK002239 SR91C790 1MRK002239-BBR01 Power Supply Module boasts a robust design that withstands harsh industrial environments, ensuring stable power delivery even under extreme conditions. With its wide input voltage range, this power supply module is adaptable to various power sources, making it suitable for global deployment across different industrial settings. Featuring advanced circuitry for high efficiency, this module minimizes energy loss and reduces heat generation, leading to lower operational costs and extended service life.

Applications

Hydropower/Thermal Power Plants: Provide main power for REx670 protection devices within relay protection panels and control panels.

Steel Smelting Plants: Used for DC power supply to high-voltage distribution room automation systems.

Petrochemical Plants: Ensures the stability of DCS bus power supply in medium and low-voltage distribution systems outside explosion-proof areas.

Rail Transit Locomotive Plants: Supports substation automation systems, ensuring uninterrupted traction power supply monitoring.

Cement/Paper Mills: Provides redundant power backup for PLCs or process controllers within the electrical control cabinets of large production lines.

Maintenance Recommendations

Preventative Replacement: ABB recommends preventative replacement after 10-12 years of operation, as components such as capacitors will naturally age over time.

Ventilation and Dust Removal: Ensure control cabinet filters are clear to prevent dust accumulation that could cause module overheating.

FAQ

Q: What is the difference between 1MRK002239 SR91C790 1MRK002239-BBR01 and BBR02?
A: The main difference lies in version iteration or specific hardware modifications. They are generally compatible in core voltage and physical size, but it is recommended to consult the IED hardware configuration manual to confirm hardware version compatibility before replacement.

Q: Can the 1MRK002239 SR91C790 1MRK002239-BBR01 module be used if my system input is 110V DC?
A: Yes. This module supports a wide input range of 85–264V AC or 100–240V AC, fully covering the common 110V and 220V DC power supply voltages used in factories.

Q: If the indicator light on the 1MRK002239 SR91C790 1MRK002239-BBR01 module is not lit, does it mean the module is faulty?
A: Not necessarily. Please first check whether the external power cable is energized, or if there is a serious short circuit at the load end that has triggered the module’s self-protection mechanism.

Q: How is the 1MRK002239 SR91C790 1MRK002239-BBR01 module (SR91C790) installed?
A: This module is typically installed as a plug-in component in a dedicated slot of ABB Relion series IEDs (such as REC670, RED670), or mounted via a specific bracket.

Q: Why choose the original 1MRK002239 SR91C790 1MRK002239-BBR01 power module instead of a third-party 24V switching power supply?
A: Original modules integrate self-supervision functionality for communication with the main CPU, enabling timely reporting of power health status. They have also passed high-intensity electromagnetic interference (EMC) certification for power systems, which ordinary industrial power supplies cannot replace.