Square D QGA32175 - 175 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D QGA32175 is a robust 175A, 240V, 3-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Available through AmpState, this unit combines a fast plug-in connection with proven protection technology to keep electrical systems running smoothly.

• Fast plug-in connection: quick installation and effortless replacement minimize downtime during panel maintenance or upgrades.
• Thermal-magnetic trip unit: provides stable overload protection with an immediate magnetic response to short circuits for repeatable, reliable performance.
• OEM-compatible design: built to fit with matching Square D load centers and panelboards for a seamless, code-compliant upgrade or new installation.
• Versatile, 3-pole configuration: ideal for 240V systems and 3-phase or multi-branch setups common in commercial and light industrial environments.

Technical overview

• Manufacturer: Square D
• Part number: QGA32175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 175 A
• Voltage rating: 240 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

This breaker is purpose-built for panels and load centers that demand quick swaps without sacrificing protection quality. The plug-in design reduces installation complexity, while the thermal-magnetic trip mechanism ensures predictable response across varying loads and fault conditions. If your electrical system requires solid 175A protection at 240V with reliable trip characteristics, the QGA32175 is a practical, code-conscious choice.

Ideal use cases and scenarios

• Upgrading or refreshing panelboards in commercial spaces that run multiple circuits at 240V.
• Installing new electrical rooms in light industrial settings where dependable short-circuit protection is critical.
• Replacing aging or incompatible breakers in compatible Square D load centers to restore quick, secure protection.
• Fast field replacements during maintenance windows to minimize downtime and keep equipment running smoothly.

Why choose this model over alternatives? The QGA32175 combines a plug-in installation workflow with a durable molded case design and a thermal-magnetic trip that delivers repeatable, predictable protection. Its 3-pole configuration aligns with 240V, three-phase or multi-branch applications, making it a focused solution for panels that require reliable, high-amperage protection without fiddly wiring or extended downtime.

Practical tips — ensure compatibility with your existing Square D load center, follow the panel manufacturer’s installation guidelines, and verify torque specifications on both line and load connections. For best results, plan replacements during scheduled maintenance windows to maintain system continuity and code compliance.