Commander 40 Amp Circuit Breaker BQL40 - 40 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Commander 40 Amp Circuit Breaker BQL40 is a 1-pole, 120 V bolt-on molded case breaker engineered for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. With a rugged bolt-on mounting design, it delivers a secure, vibration-resistant bus connection that stays tight through demanding installations.

Key features

• Bolt-on mounting provides a rigid, vibration-resistant connection to the electrical bus, minimizing loose contacts and ensuring long-term reliability.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both gradual overcurrent and fast short-circuit faults, reducing nuisance trips while safeguarding wiring and components.
• OEM-compatible design is ready to pair with matching load centers and panelboards for seamless integration and consistent protection performance.
• Versatile industrial-friendly build suitable for residential, commercial, and light industrial environments where robust circuit protection is essential.

Technical specifications

• Amperage rating: 40 A
• Voltage rating: 120 V
• Poles: 1
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker
• Part number: BQL40

Ideal applications and use cases

• Residential panelboards requiring reliable 40 A protection on individual branches or subcircuits.
• Commercial distribution panels where stable fault interruption and secure bus connections are critical for safety and uptime.
• Light industrial electrical systems that endure higher vibration or frequent switching, where a bolt-on breaker helps maintain a solid electrical bond.
• Replacement or upgrade scenarios in OEM-compatible load centers and panelboards, ensuring consistent performance with existing equipment.

Why this matters for your electrical system

Choosing the Commander BQL40 means prioritizing consistent protection and lasting reliability. The combination of bolt-on mounting and a thermal-magnetic trip unit means you get a dependable response to overloads and shorts, while the compatible design simplifies integration with your existing panel lineup. For installers and property owners who value solid connections, precise protection, and straightforward compatibility, the BQL40 is a thoughtfully engineered choice that helps keep circuits safe and systems running smoothly.