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The Q232225H Square D 3-Phase 225A 240V I-Line Breaker is a reliable solution for heavy-duty electrical applications. This circuit breaker features an easy-to-install design and robust performance, ensuring optimal protection for your circuits. Ideal for industrial settings, it provides dependable overload and short-circuit protection for your electrical systems.
No — the Q232225H uses the I-Line plug-in mounting system, which is specific to Square D I-Line panelboards and switchboards (e.g., NQ, NF series). It is not compatible with QO or Homeline residential loadcentres. If you're unsure which breaker fits your panel, contact our team with your panel model number and we'll point you in the right direction.
The Q2-frame I-Line series remains an active Square D product line, and the Q232225H (225A, 3P, 240V, 22kAIC) is a commonly stocked commercial/industrial breaker. Northern Breaker Group specializes in both current and hard-to-find breakers, so if new stock is limited, we can often source tested reconditioned units as well. Request a quote and we'll confirm availability.
The Q232225H can serve as either a feeder breaker or a main breaker, depending on how your I-Line panelboard is configured and whether the panel is rated for a main breaker in that position. Its 225A rating makes it a common choice for sub-feed or main-lug panel protection in industrial settings. Always verify the panelboard's maximum main breaker frame and ampere rating before installation.
