BJA34035 SQUARE D 3P 35A 480/277V 65KA I LINE

Square D's I-Line system uses a dedicated bus stab on the back of the breaker that clips directly onto the I-Line bus in compatible panelboards and switchboards, eliminating the need for individual bolt connections. This makes installation and replacement faster and more reliable than traditional bolt-on MCCBs. The BJA34035 is only compatible with I-Line bus assemblies — it cannot be used in standard bolt-on or QO-style loadcentres.

The Square D BJA frame I-Line series has seen limited production in recent years, making units like the BJA34035 increasingly hard to find through standard distribution channels. Northern Breaker Group specialises in obsolete and hard-to-find breakers — contact us for current stock availability and lead times. We source both new and reconditioned units to keep your equipment running.

The BJA34035 can serve as either a feeder or branch circuit breaker within an I-Line panelboard or switchboard, depending on your system design and load requirements. Whether it can act as a main breaker depends on the specific panelboard assembly and its ratings. We recommend consulting your panel documentation or reaching out to our team — we're happy to help verify the right application for your installation.