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The FA36030 Square D 3P 30A 600V I-Line circuit breaker provides robust overcurrent protection for your electrical systems. Designed for three-phase applications, this high-quality unit ensures reliable performance and longevity. Ideal for commercial and industrial use, it offers seamless integration into your setup. Trust Square D for unmatched safety and efficiency.
I-Line is a Square D proprietary bus system where the breaker's line-side connection is made via a knife-blade plug-in interface on the bus, rather than a bolt-on lug or a standard clip-in stab. This means the FA36030 can only be installed in Square D I-Line rated panelboards and switchboards — it is not interchangeable with QO, Homeline, or competitor panels. Always verify your panelboard is I-Line rated before ordering.
The Square D FA-frame I-Line series has largely been succeeded by newer MCCB families, and some configurations may be difficult to source new. Northern Breaker Group specialises in obsolete and hard-to-find breakers — we can source the FA36030 new, reconditioned, or factory-inspected. Contact our Calgary, Edmonton, or Vancouver counters for current availability and lead times.
The FA36030 carries a 600VAC rating, which means it is approved for use at 600V and any voltage below that threshold — including 120/208V, 277/480V, and 347/600V three-phase systems common in Canadian commercial and industrial installations. Using a higher-voltage-rated breaker on a lower-voltage system is perfectly acceptable; it will not affect its overcurrent protection performance.
