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The FJA160303 SQUARE D 1P 30A 347V B PH I LINE is a reliable circuit breaker designed for efficient protection in electrical systems. With a single pole configuration and a 30A rating, it handles up to 347V, ensuring optimal performance in various applications, including commercial setups. Ideal for safe, efficient operation.
The 'I-Line' designation refers to Square D's I-Line plug-in bus system, which uses a blade-style connection that clips directly onto the I-Line bus in compatible Square D panelboards and switchboards. This is a commercial/industrial mounting style — distinct from residential QO or Homeline plug-in breakers. If you're unsure whether your panelboard uses an I-Line bus, share the panel model with us and we'll verify compatibility.
Canada commonly uses 347/600V distribution in commercial and industrial buildings, where 347V is the phase-to-neutral voltage on a 600V wye system. The FJA160303 is specifically rated for this voltage, making it the correct choice for lighting and branch circuits fed from a 347/600V Canadian commercial service — a standard 120/240V residential breaker would not be suitable for this application.
The Square D FJA series is considered a legacy/hard-to-find frame in many configurations. Northern Breaker Group specializes in obsolete and difficult-to-source breakers, and we maintain access to new, reconditioned, and surplus stock across Canada. Contact our Calgary, Edmonton, or Vancouver counters or request a quote online — we'll do our best to locate the FJA160303 for you.
