Industrial QBH15 15A 1-Pole 120 V Circuit Breaker Potential Transformer

Industrial QBH15 15A 1-Pole 120 V Circuit Breaker is built for demanding electrical environments where reliable protection and easy serviceability matter. With a 15 A rating and a single-pole design for 120 V circuits, this breaker delivers decisive overcurrent protection for individual feeders, control circuits, and compact panel installations. Its rugged construction and compact footprint make it a practical choice for dense industrial control panels, metering setups, and distribution blocks that may incorporate potential transformers in protection schemes.

• Current rating: 15 A
• Pole configuration: 1-Pole
• Voltage rating: 120 V
• Part number: QBH15
• Application: Industrial electrical panels, control cabinets, branch circuits, and metering/protection architectures
• Compatibility: Designed as a direct replacement in QBH15-compatible installations for straightforward upgrades

Why this QBH15 matters in your system

The 1-Pole, 120 V configuration keeps wiring simple while delivering reliable interruption during overcurrent events. The 15 A rating is ideal for protecting mid-range circuits and equipment without triggering nuisance trips, helping to maintain machine uptime and process continuity. Its robust, industrial-grade build supports frequent cycling and harsh environments common in factories, warehouses, and production lines.

Practical use cases

• Protect individual 120 V control circuits in industrial panels and machine enclosures
• Pair with metering or protection schemes that use potential transformers for safer measurement and control
• Upgrade aging breakers in retrofit projects to enhance panel safety and reliability

Tips for optimal installation

Confirm the breaker’s compatibility with your panel’s QBH15 form factor and ensure wiring is appropriately sized for a 15 A circuit. Keep a spare QBH15 on hand for rapid maintenance in critical environments to minimize downtime and keep systems running smoothly.