Engineered for commercial applications, the Square D BJA36060 is a 3-pole, 60A molded case circuit breaker from the PowerPacT B-Frame family. It provides robust long-time and instantaneous (LI) protection. This unit features an I-Line mounting style for quick installation into Square D I-Line panelboards and switchboards. It serves as a direct, modern replacement for legacy FH36060 breakers. Rated for 65 kAIC at 480VAC, this current-limiting breaker includes factory-installed load side lugs.
What panels will the BJA36060 circuit breaker fit into?
This B-Frame breaker is designed exclusively for Square D I-Line panelboards and switchboards. It uses an I-Line plug-on style connection and will not fit into standard QO, Homeline, NQ, or NF load centers unless they feature a dedicated I-Line section.
Can I use the BJA36060 to replace older legacy breakers?
Yes, the PowerPacT B-Frame series serves as the modern replacement for legacy Square D 60A 3-pole I-Line breakers. The BJA36060 can directly replace older FH36060, FA36060, and FC36060 molded case breakers.
How does the I-Line mounting style work on this breaker?
The BJA36060 utilizes a plug-on stab assembly that attaches directly to the busbar in I-Line distribution panels. This design allows for rapid installation and easy phase arrangement without requiring bolted bus connections on the line side.
What does the J indicate in the BJA36060 part number?
In the Square D PowerPacT nomenclature, the J designates the specific interrupting rating tier for the breaker. For this model, it signifies a maximum interrupting capacity of 100kAIC at 240VAC, 65kAIC at 480VAC, and 25kAIC at 600VAC.
What wire size and material does the BJA36060 accept?
The factory-installed load side lugs accept wire gauges from 14 AWG to 2/0 AWG. The lugs are rated for both aluminum and copper conductors (Al/Cu).
Are the trip settings adjustable on the BJA36060 breaker?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time (thermal overload) and instantaneous (magnetic short circuit) protection functions are factory set and non-adjustable.
Is this breaker suitable for direct current (DC) systems?
Yes, in addition to its AC ratings, the BJA36060 has a DC interrupting rating of 50kAIC at 250VDC, making it suitable for compatible DC distribution equipment.
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