Eaton QBHW1040 - 40 A, 240 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton QBHW1040 — a rugged 40A, 240V, 1-pole bolt-on molded case circuit breaker designed to protect your electrical installations with confidence. Ideal for residential, commercial, and light-industrial panelboards and load centers, this breaker delivers dependable overcurrent and short-circuit protection where it matters most.

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection, maintaining a tight, reliable path for current even in busy equipment rooms or environments with frequent equipment starts.
• Thermal-magnetic trip unit: combines precise thermal overload protection with rapid magnetic response for_short faults_, delivering consistent protection across a broad range of fault currents.
• OEM-panel compatibility: designed to pair seamlessly with matching Eaton loadcenters and panelboards, ensuring a clean fit and dependable performance without modification.
• Versatile, single-pole design: specifically suited for circuits that require a 40A breaker at 240V, balancing strong protection with efficient space use in panels.

Technical snapshot: Model QBHW1040, thermal-magnetic molded case, 40A, 240V, 1-pole, bolt-on mounting. Purpose-built for branch-circuit overcurrent and short-circuit protection.

Use cases you’ll encounter include protecting a dedicated circuit for high-draw equipment (such as water heaters, subpanels, or HVAC components), safeguarding lighting and receptacle circuits in small to mid-size commercial rooms, and serving as a robust, bolt-on solution in retrofit projects where secure mounting is essential. If your panel requires a bolt-on, 1-pole, 40A, 240V protective device, the QBHW1040 offers a precise match.

Why this design matters in real-world service: the combination of secure mounting, reliable thermal-magnetic protection, and OEM compatibility translates to fewer field adjustments, lower maintenance, and more predictable interruption performance when faults occur. It’s a practical choice for electricians stocking dependable, readily compatible parts for Eaton-based panel systems.

Sold by AmpState, the Eaton QBHW1040 brings proven protection to your electrical infrastructure with clear, straightforward installation and durable, long-term performance. If you’re upgrading or stocking parts for panelboards and load centers, this breaker delivers the reliability and compatibility you need for steady, safe operation.