Part of the PowerPacT B-Frame lineup, this 30A molded case circuit breaker provides robust thermal-magnetic protection for commercial and industrial applications. It installs into Square D I-Line panelboards and switchboards, serving as a modern upgrade for legacy FC36030 units. Featuring a 65kA interrupting capacity at 480VAC, the BJA prefix indicates high-performance current limiting capabilities alongside standard long-time and instantaneous (LI) trip functions for optimal system safety.
Which panelboards are compatible with the BJA36030 circuit breaker?
The BJA36030 is designed exclusively for Square D I-Line panelboards and switchboards. It uses an I-Line style plug-in connection and will not fit in standard NQ or NF panels.
Does the PowerPacT BJA36030 replace older Square D legacy breakers?
Yes, the PowerPacT B-frame series is the direct replacement for legacy F-frame I-Line circuit breakers, including the FA and FH series. The BJA36030 maintains the same mounting space dimensions for easy retrofitting into existing I-Line panelboards.
How much bus space does the BJA36030 require in an I-Line panel?
As a 3-pole PowerPacT B-frame breaker, it requires 4.5 inches of I-Line mounting space on the panel bus.
What do the letters BJA signify in the catalog number?
In the Square D nomenclature, B designates the compact PowerPacT B-frame. The J indicates the interrupting rating (65kA at 480VAC), and A denotes the I-Line style plug-in connection.
Can I adjust the trip settings on the BJA36030?
No, the BJA36030 features a standard thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. It does not have adjustable trip dials for fine-tuning the trip curve.
Is the BJA36030 rated for DC applications?
Yes, in addition to its standard AC ratings, this breaker is rated for DC power systems. It carries an interrupting capacity of 50kA at 250VDC.
What type of overcurrent protection does the BJA36030 provide?
The thermal-magnetic trip unit provides long-time overload and instantaneous short-circuit protection (LI functions), which is standard for general-purpose feeder and branch circuit protection. It does not include short-time or ground-fault (LSIG) capabilities.
Does the BJA36030 require a separate mounting kit?
No, it features a built-in I-Line style plug-in connection. It stabs directly onto the interior bus of a compatible I-Line panelboard, requiring no external mounting brackets.
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Review summary
Customers rate this product 4.3 out of 5 based on 3 reviews.