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The BGA34090 SQUARE D 3P 90A 480Y/277V 35KA I LINE circuit breaker is designed for superior performance in high-demand applications. Featuring three poles, it provides reliable protection at 90 amps and is rated for up to 35kA short-circuit current. Ideal for commercial and industrial use, ensuring safety and efficiency.
The BGA34090 uses Square D's I-Line plug-in connection, so it is designed for Square D I-Line panelboards and switchboards rated for 480Y/277V commercial or industrial distribution. It will not fit QO-style or Homeline residential loadcentres. Contact us with your panelboard model number and we can confirm compatibility.
Square D has transitioned many BGA-frame I-Line breakers to newer product lines over the years. The BGA34090 may be discontinued or hard to source through standard channels. Northern Breaker Group specialises in obsolete and hard-to-find breakers — reach out to our Calgary, Edmonton, or Vancouver counters for current availability and lead times.
The BGA34090 is rated 90A at 480Y/277V with 35kA interrupting capacity, which suits branch or feeder applications in commercial and industrial I-Line panelboards. Whether it qualifies as a main breaker depends on your specific panelboard's configuration and your panel's AIC requirements. We recommend consulting your panelboard documentation or having your electrical engineer confirm before installation.
