Square D QDA32125 - 125 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D QDA32125 delivers dependable, high-capacity protection for your electrical system with a clean plug-in design. At 125A and 240V, this 3-pole molded case circuit breaker is built to guard branch circuits in panelboards and loadcenters, balancing reliable performance with easy serviceability.

• Fast plug-in connection for swift installation or replacement, reducing downtime and simplifying upgrades in both new builds and retrofits.
• Thermal-magnetic trip unit provides stable, repeatable protection against overloads and short circuits, minimizing nuisance trips while preserving circuit integrity.
• 3-pole construction ideal for 3-phase systems, supporting a range of commercial and light industrial applications without compromising safety or coordination.
• OEM-compatible design engineered to pair with matching Square D OEM load centers and panelboards, ensuring a precise fit and consistent performance.
• Versatile application suitable for residential, commercial, and light industrial environments that require robust branch-circuit overcurrent and short-circuit protection.

Designed for real-world service conditions, the QDA32125 helps you maintain protection where it matters most—at the point of use in your panelboard. The plug-in mounting enables quick swaps during routine maintenance or impactful upgrades, while the thermal-magnetic trip curve delivers reliable response across typical electrical loads, keeping circuits within safe limits and helping you meet electrical codes and standards.

Key uses and scenarios

• Upgrading aging panelboards to a reliable, easily replaceable plug-in breaker
• Protecting multi‑branch circuits in small to mid-size commercial setups
• Implementing 3‑phase protection for equipment in light industrial applications
• Replacement for compatible Square D breakers in OEM load centers to maintain system coordination

Technical snapshot

• Manufacturer: Square D
• Part number: QDA32125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 125 A
• Voltage rating: 240 V
• Number of poles: 3
• Mounting style: Plug-in
• Applications: Branch circuit overcurrent and short-circuit protection

Whether you’re outfitting a new panel installation, performing a targeted replacement, or planning a load-center upgrade, the Square D QDA32125 offers a precise combination of rapid installation, reliable protection, and OEM compatibility that aligns with practical electrical needs and real-world expectations.