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The QBA32125 is a reliable 3-pole, 125 amp I-Line circuit breaker designed for 240V applications. Ideal for commercial and industrial use, this Square D breaker ensures optimal performance and safety in your electrical system. Its robust construction and ease of installation make it a perfect choice for your power distribution needs.
The QBA32125 uses Square D's I-Line plug-in mounting system, so it is compatible with Square D I-Line panelboards and switchboards designed for that bus interface — commonly found in commercial and light industrial installations. It is not interchangeable with QO or Homeline loadcentres. Share your panelboard model number with us and we'll verify compatibility before you order.
Square D has transitioned many QBA-frame I-Line breakers over the years, and availability can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers — if the QBA32125 is discontinued or in short supply, we can source reconditioned, surplus, or equivalent replacement units. Contact our Calgary, Edmonton, or Vancouver counter for current stock and lead times.
The QBA32125 is rated at 10kA AIC (ampere interrupting capacity) at 240V. This is suitable for many commercial distribution applications where available fault current does not exceed 10kA at the point of installation. If your system's available fault current is higher, a higher-interrupting-rated I-Line breaker may be required — our team can help you assess the right fit for your project.
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