Square D QBA32125 125A 3P 240V Circuit Breaker | AmpState

The Square D QBA32125 is a sturdy circuit breaker engineered for dependable overcurrent protection in electrical distributions. With a nominal rating of 125 A, 3 poles (three-phase), and 240 V operation, this device is tailored for panelboards, load centers, and other distribution setups where reliable fault isolation matters.

Built for professionals who value precise part-number matching, the QBA32125 offers a direct, dependable fit that minimizes inventory headaches and reduces downtime during replacements. It’s a smart choice for maintenance teams, panel builders, and spare-stock inventories where exact compatibility makes all the difference on-site and in the shop.

Key specifications

• Manufacturer: Square D
• Part Number: QBA32125
• Product Type: Circuit Breaker
• Amperage: 125 A
• Poles: 3 (three-phase)
• Voltage: 240 V

Why this breaker stands out

• Exact part-number match reduces selection errors and speeds up sourcing in panels and distribution boards.
• Three-pole design supports balanced protection in 3-phase systems, helping to safeguard equipment and maintain electrical stability.
• Compatibility with panelboards and load centers ensures smooth integration into common distribution architectures.
• Reliable availability from AmpState makes it easier to plan replacements and keep crews moving.

Use cases and scenarios

• Replacing a failed 125 A, 3P, 240 V breaker in a commercial or industrial panel.
• Stocking spare parts for maintenance teams to reduce downtime during field service calls.
• Specifying exact-match components during panel builds or retrofits where compatibility matters for permits and warranties.

How it compares to alternatives

Compared to generic substitutes, the QBA32125 emphasizes exact fit and proven compatibility with Square D systems, ensuring consistent trip behavior and straightforward maintenance records. Its direct part-number lineage helps avoid mismatches that can complicate audits or warranty eligibility.

If you’re unsure about fit or need confirmation of compatibility, AmpState is ready to assist. Reach out with your panel model or distribution setup, and we’ll help verify that QBA32125 is the right choice for your configuration.