Square D QO235 - 35 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Engineered for dependable branch circuit overcurrent and short-circuit protection, the Square D QO235 is a 35-amp, 240-volt, 2-pole plug-in molded case circuit breaker. It’s designed to drop into compatible panelboards and loadcenters, delivering fast installation and straightforward service when upgrading or replacing a circuit.

Why this QO235 breaker stands out

• Fast plug-in connection enables quick installation and hassle-free replacement, reducing downtime during panel upgrades or maintenance.
• Thermal-magnetic trip unit delivers stable, repeatable protection against both overloads and short circuits, helping to guard circuits and connected equipment.
• 2-pole, 240V design ensures simultaneous disconnection on both hot legs, providing safe and reliable shutdown for 240V circuits.
• OEM-compatible is built to work with matching Square D OEM load centers and panelboards for a coordinated protection system.
• Versatile for multiple environments suitable for residential, commercial, and light industrial applications—protecting lighting circuits, receptacle runs, small motors, and other 240V loads.

Technical snapshot

• Manufacturer: Square D
• Part Number: QO235
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and guidance

Ideal for panels that service 240V circuits in homes, small offices, or light commercial spaces. Use it to protect dedicated 240V appliances, HVAC-related circuits, or motor loads where reliable, prompt interruption is essential. Pair it with other compatible QO-series breakers for a cohesive protection strategy across your panelboard. When installing, verify compatibility with your specific panel model and follow standard electrical safety practices for plug-in breakers. If a fault occurs, the thermal-magnetic mechanism helps limit damage by reacting quickly to short circuits while providing stable protection through normal overload conditions.

What you gain with the Square D QO235

• Reliable 2-pole protection for 240V branch circuits
• Simple, tool-free plug-in installation for upgrades and replacements
• Consistent protection performance through a thermal-magnetic trip system
• Seamless compatibility with OEM Square D load centers and panelboards
• Suitable across residential, commercial, and light industrial applications