ABB 1MRK002239-BA Industrial-Grade Power Supply Module

The ABB 1MRK002239-BA represents a critical infrastructure component for modern electrical protection systems. This industrial power supply module transforms raw AC or DC station power into precisely regulated 24VDC output, ensuring continuous operation of protection relays that defend electrical networks against faults, overloads, and system anomalies. Built to withstand extreme environmental conditions and electrical transients common in utility and industrial installations, this module serves as the backbone power source for mission-critical protective equipment.

Designed specifically for integration with ABB's comprehensive portfolio of protection and automation devices, the 1MRK002239-BA addresses the fundamental challenge faced by electrical engineers: maintaining uninterrupted auxiliary power to protective relays regardless of input voltage fluctuations, temperature extremes, or electrical disturbances. Whether deployed in remote substations, industrial control rooms, or offshore platforms, this power supply delivers the reliability that critical infrastructure demands.

With its compact DIN rail form factor and universal input compatibility, the module simplifies system design while reducing spare parts inventory. Engineers benefit from a single power supply model that adapts to diverse voltage environments, eliminating the need for site-specific variants and accelerating project deployment timelines.

Core Features & Technical Benefits

→ Universal Input Voltage Compatibility
Accepts 110-250VAC or 110-300VDC input sources, providing seamless integration with global station battery standards (48V, 110V, 125V DC systems) and auxiliary AC supplies. This flexibility reduces engineering complexity and enables standardized designs across multi-site deployments.

→ Regulated 24VDC Output with 5A Capacity
Delivers stable, low-ripple 24VDC power at up to 5 amperes continuous current, sufficient to power multiple protection relays simultaneously. Tight voltage regulation ensures consistent relay operation and prevents nuisance trips caused by power supply variations.

→ 3kV Galvanic Isolation Protection
Input-to-output isolation barrier protects sensitive relay electronics from ground potential differences and transient voltages that propagate through substation grounding systems during fault conditions. This isolation extends equipment lifespan and enhances system safety.

→ Comprehensive Fault Protection Suite
Integrated overvoltage, overcurrent, short-circuit, and thermal shutdown circuits automatically safeguard both the power supply and connected loads. Auto-recovery functionality restores operation once fault conditions clear, minimizing maintenance intervention.

→ Extended Temperature Range Operation
Qualified for -40°C to +70°C ambient operation without derating, enabling deployment in unheated outdoor enclosures, desert environments, arctic installations, and thermally challenging industrial settings where conventional power supplies fail.

✓ High-Efficiency Conversion Technology
Achieves >85% typical efficiency at full load, reducing heat generation within relay panels and lowering cooling requirements. Lower power consumption translates to reduced station battery drain during utility outages.

Typical Application Scenarios

Transmission & Distribution Substations
In utility substations ranging from 13.8kV distribution to 500kV transmission levels, the 1MRK002239-BA powers protection relays that monitor feeders, transformers, bus sections, and transmission lines. The module's wide input range accommodates both 125VDC station batteries and 230VAC auxiliary supplies commonly found in utility installations. Its rugged construction withstands the electromagnetic interference and temperature cycling inherent to outdoor switchyard environments, ensuring protective devices remain operational during the critical moments when faults occur.

Industrial Manufacturing Facilities
Manufacturing plants with complex electrical distribution systems deploy this power supply to energize motor protection relays, feeder protection devices, and arc flash detection systems. The module's DIN rail mounting integrates seamlessly into motor control centers and industrial control panels. By maintaining stable power to protective relays, facilities prevent costly production downtime caused by undetected electrical faults and ensure worker safety through reliable ground fault and arc flash protection.

Renewable Energy Power Plants
Solar photovoltaic farms and wind generation facilities require protection equipment that operates reliably despite wide ambient temperature swings and remote locations with limited maintenance access. The 1MRK002239-BA's extended temperature rating and high MTBF design make it ideal for powering inverter protection relays, collector system protection devices, and substation automation equipment in these challenging environments where equipment failures directly impact revenue generation.

Marine & Offshore Oil/Gas Platforms
Shipboard electrical systems and offshore platform power distribution networks face unique challenges including vibration, salt spray, and limited space for equipment installation. This power supply's compact footprint, wide input voltage tolerance, and robust protection features address these constraints while providing the reliability demanded by classification societies and safety regulations governing marine electrical installations.

Data Center Critical Power Infrastructure
Mission-critical data centers utilize protection relays to monitor UPS systems, generator switchgear, and main distribution equipment. The 1MRK002239-BA provides the auxiliary power these protective devices require, with its high reliability and redundancy-compatible design supporting the 99.999% uptime targets that Tier III and Tier IV facilities demand.

Technical Parameters & Selection Guide

Selection Criteria: Calculate total auxiliary power consumption of all connected relays and add 25% margin. For redundant configurations, size each power supply for 100% of total load. Verify input voltage source matches module's AC or DC input range. Consider ambient temperature extremes when selecting enclosure location—this module's -40°C rating eliminates need for heated enclosures in most climates.

Extended Functions & Integration Capabilities

Redundant Power Architecture Support: Deploy multiple 1MRK002239-BA modules in parallel using external ORing diodes or redundancy modules to create N+1 or 2N redundant power configurations. This approach eliminates single points of failure in critical protection systems where relay power loss could compromise grid protection during fault events.

Remote Monitoring Integration: Output voltage and current can be monitored via external measurement devices connected to the output terminals, enabling integration with SCADA systems and substation automation platforms. This visibility supports predictive maintenance programs by identifying degrading power supplies before failure occurs.

Customization Options: For projects requiring specialized input voltage ranges, conformal coating for extreme environments, or extended temperature ratings beyond -40°C to +70°C, consult with our application engineering team. Custom variants can be specified for large-scale deployments with unique requirements.

Delivery Timeline & Service Guarantee

Standard Lead Time: In-stock units ship within 2-3 business days via express courier. Standard delivery to most global destinations completes within 5-7 business days from order confirmation.

Custom Configuration Lead Time: Special variants with modified specifications require 4-6 weeks manufacturing lead time plus shipping duration. Expedited production available for critical projects.

Warranty Coverage: Each module includes a comprehensive 12-month manufacturer warranty covering defects in materials and workmanship. Warranty includes advance replacement service to minimize downtime in critical applications.

Technical Support: Our application engineering team provides pre-sales sizing assistance, installation guidance, troubleshooting support, and integration consulting. Support available via email, phone, and remote desktop sessions for complex commissioning scenarios.

Documentation Package: Every shipment includes installation manual, technical datasheet, wiring diagrams, and compliance certificates (CE, UL where applicable). CAD drawings and 3D models available for panel design integration.

Frequently Asked Questions

What is the maximum number of protection relays this power supply can support simultaneously?
The 5A output capacity typically supports 3-5 modern protection relays, depending on their individual power consumption. ABB REF615 relays consume approximately 8-12W each, allowing 3-4 units per power supply with appropriate margin. Always calculate total load and add 20-25% safety margin for inrush currents during relay startup.

Can this module operate from solar panel DC voltage or battery systems in off-grid installations?
Yes, provided the DC source voltage remains within the 110-300VDC input range. For solar applications, ensure battery charge controller maintains voltage within this window. The module's wide input range accommodates the voltage variations typical of battery-based systems during charge/discharge cycles.

How does the module respond to input power interruptions or brownout conditions?
The power supply includes input undervoltage lockout that prevents erratic operation during brownouts. When input voltage drops below the operating threshold, output shuts down cleanly. Upon input restoration, the module automatically restarts without manual intervention. For applications requiring ride-through during brief outages, consider adding external holdup capacitors or battery backup to the input.

Is this power supply suitable for hazardous area installations requiring ATEX or IECEx certification?
The standard 1MRK002239-BA is designed for general industrial environments and does not carry intrinsic safety or explosion-proof certifications. For hazardous area applications, the power supply must be installed in appropriately rated enclosures outside the classified zone, or consult ABB for certified variants designed for Zone 2/Division 2 installations.

What maintenance procedures are recommended to maximize service life?
The module requires minimal maintenance due to its solid-state design with no moving parts or electrolytic capacitors in critical circuits. Recommended practices include: quarterly visual inspection for dust accumulation on ventilation openings, annual verification of output voltage accuracy, and periodic thermal imaging to detect abnormal heating patterns. Keep ambient temperature below +60°C when possible to maximize component lifespan.

Can the output voltage be adjusted or is it fixed at 24VDC?
The output voltage is factory-set to 24VDC ±2% and is not field-adjustable. This fixed voltage design ensures consistent operation with ABB protection relays and eliminates the risk of incorrect voltage settings damaging connected equipment. For applications requiring different output voltages, alternative ABB power supply models are available.

Ready to Secure Your Protection System Power?

Ensure uninterrupted operation of your critical protection infrastructure with the ABB 1MRK002239-BA power supply module. Our technical team is ready to assist with application sizing, redundancy design, and integration planning for your specific project requirements.

Contact our specialists today: Request a technical datasheet, discuss custom configurations, or place your order for immediate shipment. We support electrical contractors, system integrators, and facility engineers worldwide with expert guidance and rapid delivery.

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