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The BGA34100 Square D 3P 100A circuit breaker is designed for 480Y/277V applications with a 35KA interrupting capacity. This robust breaker ensures reliable performance in demanding environments, offering excellent protection for your electrical systems. Ideal for commercial and industrial use, it supports efficient operation while safeguarding against overloads and short circuits.
The BGA34100 uses Square D's I-Line plug-in mounting system. It is designed for Square D I-Line panelboards and switchboards rated for 480Y/277V, three-phase distribution — not for residential loadcentres such as QO or Homeline. Contact us with your panel model to confirm compatibility.
The Square D BGA frame series is considered obsolete or hard-to-find through standard distribution channels. Northern Breaker Group specializes in sourcing exactly these types of breakers — both new old stock and reconditioned units — for replacement purposes. Reach out for current availability and lead times.
The BGA34100 is rated specifically for 480Y/277V grounded wye systems. While the 480V voltage level is the same, using it on an ungrounded 480V delta system is not recommended without confirming the breaker's suitability for that configuration with a qualified electrical engineer, as interrupting ratings and voltage ratings differ between wye and delta systems.
