Square D QOB115HM 15A 1-Pole 240 V Circuit Breaker

The Square D QOB115HM 15A 1-Pole 240V Circuit Breaker delivers dependable overcurrent protection for single 240-volt circuits in compatible Square D panels. Built to the precise specifications of the QOB series, this breaker offers clean, reliable performance that electricians trust for residential and light commercial applications. With a 15-amp rating on a single pole, it protects wiring and devices from overload while allowing your 240V circuit to operate safely and efficiently.

Key details

• Part Number: QOB115HM
• Current Rating: 15 A
• Poles: 1
• Voltage Rating: 240 V
• Type: Square D QOB series, single-pole 240V breaker

Why this specific breaker matters

Choosing the right breaker matters for both safety and reliability. The QOB115HM is a purpose-built solution designed to fit Square D load centers that accept QOB-series devices. Its single-pole 240V design provides targeted protection for circuits that operate on a two-hot-leg, 240V supply, ensuring that only the intended circuit is interrupted in the event of an overload or fault. This specificity helps minimize nuisance trips on nearby circuits and simplifies replacement in existing panels built for QOB components.

Ideal use cases

• Protect dedicated 240V loads in residential workshops or small offices, such as space heaters, certain air-conditioner components, or heavy appliances that run on a single 240V line.
• Replace a worn or failed breaker in Square D panels that support QOB-series devices, maintaining panel continuity and compatibility.
• For upgrades in panels that require precise 240V, 1-pole protection without introducing multi-pole configurations.

Installation and compatibility tips

Ensure your panel accepts QOB-series breakers before installation. Always de-energize the main breaker and follow local electrical codes when replacing or adding protection for 240V circuits. If you’re unsure about panel compatibility or wiring practices, consult a licensed electrician to confirm correct fitment and safe installation.

With the Square D QOB115HM, you’re selecting a trusted, purpose-built solution for safeguarding specific 240V circuits. Its precise 15A, 1-pole configuration in a Square D design provides straightforward, reliable protection that fits seamlessly into compatible panels and setups, helping keep your electrical system organized and protected.