BJA36090 SQUARE D 3P 90A 600Y/347V 25KA I LINE

The BJA36090 uses Square D's I-Line plug-in mounting system, which is designed for Square D I-Line panelboards and switchboards (e.g., NF and PH series enclosures). It is not compatible with QO or Homeline residential loadcentres. Because compatibility depends on bus size and panel configuration, we recommend sending us your panelboard model number so we can confirm a proper fit.

Yes — the BJA36090 is rated for 600Y/347V systems, which is the standard Canadian 3-phase wye distribution voltage (600V line-to-line, 347V line-to-neutral). This makes it ideal for commercial and industrial panels fed by a 600V transformer, including lighting circuits running at 347V. Always verify your system's available fault current does not exceed the breaker's 25kA interrupting rating.

Absolutely. Sourcing obsolete and hard-to-find Square D breakers like the BJA36090 is a core part of what we do. We maintain stock of and actively source legacy I-Line frame breakers for Canadian industrial and commercial customers. Contact our Calgary, Edmonton, or Vancouver counters or submit a quote request online and our team will advise on availability and lead time.