Square D QBA32175 - 175 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D QBA32175 is a 175 Amp, 240-Volt, three-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection for panelboards and load centers. Its fast plug-in connection makes installation and replacements quick, minimizing downtime during upgrades or service work.

• Fast plug-in connection: simplifies installation and replacement, reducing labor time in panel upgrades or repairs.
• Thermal-magnetic trip unit: provides stable, repeatable overload protection and rapid response to short circuits.
• 3-pole, 240V design: ideal for three-phase distribution in commercial and light industrial environments, as well as residential 3-phase setups.
• OEM-compatible: designed to fit with matching Square D OEM load centers and panelboards for guaranteed fit and coordinated protection curves.

Where to use: This breaker is built for branch circuit overcurrent and short-circuit protection in panelboards and load centers. It is suitable for residential, commercial, and light industrial applications where reliable, high-current protection is required for 3-phase equipment, motors, HVAC systems, lighting, and power distribution.

Technical specifications

• Manufacturer: Square D
• Part number: QBA32175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 175A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choosing this model means you’re equipping your panel with a breaker that coordinates with your existing load center, supports efficient service changes, and provides robust protection for essential electrical loads. The 3-pole configuration ensures proper handling of three-phase equipment, helping minimize nuisance trips and keep critical machinery running smoothly.

Designed for installers and facility managers who demand reliability, ease of replacement, and compatibility with Square D systems, the QBA32175 is a practical choice for upgrading old panels or stocking spare breakers for fast service calls.