Siemens MQJ2110KH 110A 2-Pole 240 V Circuit Breaker Potential Transformer

The Siemens MQJ2110KH 110A 2-Pole 240 V Circuit Breaker Potential Transformer is a purpose-built protection device designed to safeguard your electrical distribution with precision and reliability. With a compact 2-pole design and a 110 A current rating, it delivers dependable overcurrent protection for 240 V circuits while integrating a potential transformer interface to support metering and control tasks within a Siemens ecosystem.

Key benefits you’ll notice in everyday operation:

• Accurate, reliable protection—2-pole design ensures both supply legs are switched simultaneously, improving fault clearance and safety in 240 V circuits.
• Precise current handling—110 A rating is ideal for mid-size distribution feeders, balancing protection with uptime in commercial and light industrial settings.
• Built-in metering and control capability—the potential transformer interface enables measurement and signaling essential for monitoring, fault analysis, and integrated protection schemes.
• Siemens compatibility—part number MQJ2110KH guarantees seamless replacement and continuity within your Siemens panel and protection lineup.
• Versatile 240 V application—designed for standard 240 V electrical systems found in warehouses, workshops, offices, and data-center environments where reliable protection is critical.
• Robust, field-ready design—engineered for demanding installations, with durable contacts and a proven trip mechanism to keep downtime to a minimum.

Ideal use cases

• Replacement or upgrade in Siemens panelboards and distribution boards requiring a 110 A, 2-pole, 240 V breaker with metering capabilities.
• Protection for mid-size feeders in commercial facilities, manufacturing floors, and data-center infrastructure where accurate measurements are important for energy management.
• Subpanels in industrial settings where coordinated protection and PT-enabled monitoring simplify wiring and maintenance.

Practical tips for installation and use

• Verify that MQJ2110KH is compatible with your current Siemens panel or distribution board before replacement.
• De-energize the system and follow all safety protocols when installing or replacing breakers; wear appropriate PPE.
• Plan PT wiring routes to minimize interference and ensure clean, reliable measurement signals for metering and control tasks.

Choose the Siemens MQJ2110KH 110A 2-Pole 240 V Circuit Breaker Potential Transformer for dependable overcurrent protection with integrated metering capabilities, designed to fit neatly into your Siemens-powered electrical infrastructure and reduce overall system complexity.