Product Overview
ABB 1MRK002239-BBR01 (also known as SR91C790 / 1MRK002239) is a specialized power supply unit designed for industrial automation environments. It provides stable DC power to PLCs, controllers, HMIs, or other control system modules, serving as a fundamental component in factory automation, process control cabinets, and distributed control systems.
Core Capabilities
Stable DC Output: Converts main line AC power into stable DC power for use by automated equipment.
Industrial-Grade Design: Engineered to withstand typical factory environments, handling voltage fluctuations and continuous load operation.
Multiple Protection Features: Built-in safeguards effectively prevent downstream equipment from overcurrent and short-circuit damage.
Convenient Installation: Suitable for DIN rail or cabinet mounting within industrial control cabinets.
Technical Information
| Specification | Details |
|---|---|
| Model | 1MRK002239‑BBR01 |
| Manufacturer | ABB |
| Type | Industrial Power Supply Module |
| Primary Input | 90–264 VAC (wide range) |
| Output Voltage | 24 V DC |
| Typical Output Current | Up to 40 A |
| Efficiency | >90% (approximate) |
| Ripple & Noise | <50 mV p‑p |
| Operating Temp. | −40°C to +70°C |
| Protection | Overload, Overvoltage, Short Circuit |
| Installation | DIN rail / Panel mounting |
| Weight | ~1.5 kg |
| Origin | Sweden |
| Warranty | Standard manufacturer coverage |
Solution Focus – Efficient Power Delivery
Many automation failures and hardware malfunctions stem from unstable or insufficient power supply. This power module is specifically engineered to reduce electrical noise, maintain strict voltage regulation, and deliver stable power across a wide range of industrial load curves-ensuring continuous system operation. By shielding precision electronics from common power anomalies, it significantly enhances overall system resilience.
Frequently Asked Questions

Common Problem
What is the main function of the 1MRK002239-BBR01?
It converts various AC input voltages to a reliable 24V DC output to power automation system components.
Can this module operate in extreme temperatures?
Yes-this module is designed to withstand typical industrial ambient temperature ranges (e.g., from -40°C to +70°C), suitable for control cabinets and harsh environments.
How is this module installed?
It is typically mounted on a DIN rail or fixed inside a control cabinet, conforming to standard industrial specifications.
Is it compatible with multiple brands of PLCs?
Although this module is optimized for ABB automation systems, it can provide 24V DC power to most PLCs and industrial electronic devices that require standard DC power.
Trusted Automation Supplier
new in stock– PLC Export
Flexible Control for Growing Systems
The PM5032-T-ETH strikes a good balance between integrated I/O and scalability. It is particularly suitable for systems with a small initial size but which may require additional functionality in the future, allowing users to expand without replacing the core controller.
Proven Availability Through Global Supply
PLC EXPORT operates a global automated supply chain network with strong warehousing capabilities and international logistics channels. This architecture enables us to maintain stable inventory levels and respond efficiently to both routine procurement and emergency replacement needs.

Ask for Today's Offer
| Contact Method | Details |
|---|---|
| sales3@mooreplc.com | |
| WhatsApp / Phone | +86 180 2071 4662 |
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