Mitsubishi UCON-A240B-W Air Circuit Breaker For Low Voltage Power Distribution Systems Industrial Facilities

The Mitsubishi UCON-A240B-W Air Circuit Breaker is a rugged, dependable solution designed to protect and control low-voltage power distribution in demanding industrial and commercial environments. Built to withstand demanding duty cycles, this breaker provides precise isolation and reliable fault intervention when it matters most.

Key capabilities that set it apart

• Heavy-duty protection for low-voltage systems: Engineered to safeguard main incoming feeders and critical distribution points, helping minimize downtime and equipment wear.
• Adjustable trip settings: Flexible protection coordination that lets you tailor the response to your specific load profiles and system requirements.
• High interruption capacity: Robust fault-current handling to quickly interrupt dangerous faults, preserving equipment and maintaining stability in large installations.
• Reliability in diverse facilities: Ideal for environments where dependable power distribution is essential, from industrial plants to commercial complexes.
• Seamless integration with existing protection schemes: Designed to fit into standard low-voltage distribution assemblies and switchboards without compromising performance.

Ideal applications

• Main incoming feeders that require strong protection and controlled disconnect
• Switchboards and central distribution panels feeding critical loads
• Commercial facilities and industrial sites where precise trip settings improve safety and reliability

How this breaks down risk and improves uptime

By combining adjustable trip settings with a high interruption capacity, the UCON-A240B-W helps ensure that only the least necessary portion of the system is isolated during a fault. This targeted protection keeps downstream equipment energized, reduces unplanned outages, and supports safer, more predictable operation for complex power networks.

Technical snapshot

• Model / Part Number: UCON-A240B-W
• Breaker Type: Air Circuit Breaker
• Application: Low-voltage power distribution systems in industrial and commercial facilities
• Key benefits: Reliable protection, adjustable trip settings, high interruption capacity

Practical tips for use and maintenance

• Coordinate protection curves with upstream devices to minimize unnecessary tripping and protect sensitive equipment.
• Schedule periodic functional testing of the trip mechanism to verify operation within the configured settings.
• Keep system documentation up to date, noting the exact trip settings and the load an arrangement protects for quick troubleshooting.
• Inspect for signs of wear or overheating during routine maintenance to preserve long-term reliability.