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The QBH240 is a high-quality Eaton 2-Pole 40 Amp 240V Bolt-On Circuit Breaker, designed for reliable performance in various applications. This breaker ensures optimal safety and protection for your electrical systems, making it an excellent choice for residential and commercial use. Durable construction guarantees long-lasting functionality. Perfect for your next project!
The QBH series uses a bolt-on mounting style, which physically fastens the breaker to the panelboard bus bar with a screw. The BR series uses a plug-on (clip-on) connection. These two series are not interchangeable, so it's important to confirm which type your CH panel requires before purchasing. The QBH240 is strictly a bolt-on breaker.
In many cases, yes — the QBH series is the current Eaton offering that succeeds older Cutler-Hammer bolt-on CH-style breakers of the same frame. However, compatibility depends on your specific panel vintage and bus configuration. Northern Breaker Group specialises in obsolete and hard-to-find breakers, so if the QBH240 isn't the right fit, we can help source the correct replacement. Contact us with your panel details.
For most residential and light commercial branch circuits in Canada, a 10kA AIC (Ampere Interrupting Capacity) rating meets the requirements of CSA C22.1 (Canadian Electrical Code). However, if your service panel is fed by a larger transformer or is located close to the utility source — common in some commercial installations — a higher AIC rating may be required. Consult your electrician or authority having jurisdiction (AHJ) to confirm the fault current available at your panel.
