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The BJA36125 Square D 3P 125A circuit breaker is designed for high-performance applications, featuring a 600Y/347V voltage rating and a 25KA short-circuit interrupting capacity. This three-pole breaker ensures reliable protection for your electrical systems, making it an ideal choice for commercial and industrial settings. Trust Alberta Breaker & Supply for quality.
The BJA36125 uses Square D's I-Line plug-in bus stab connection, so it is compatible with Square D I-Line panelboards and switchboards rated for 600Y/347 V and capable of accepting a 125 A, 3-pole breaker. It does not fit QO loadcentres or Homeline panels. If you're unsure whether your board accepts I-Line breakers, send us the panelboard model number and we'll confirm.
Yes — the BJA36125 is rated 600Y/347 V, which is the standard wye voltage used in Canadian commercial and industrial three-phase distribution. Its 25 kA short-circuit interrupting capacity makes it well suited for typical commercial service entrance and feeder applications. Always verify the available fault current at your installation point does not exceed 25 kA.
The BJA frame is an older Square D I-Line series that can be difficult to find through standard supply channels. Northern Breaker Group specialises in obsolete and hard-to-find breakers and maintains inventory of legacy Square D I-Line frames. Contact our Calgary, Edmonton, or Vancouver counters or request a quote online — we'll advise on availability and lead time.
