BDA36040 SQUARE D 3P 40A 600Y/347V 14KA I LINE

The BDA36040 uses Square D's I-Line plug-in mounting and is designed for Square D I-Line commercial/industrial panelboards rated at 600Y/347V. It is not intended for residential QO or Homeline loadcentres. Because specific bus and enclosure compatibility can vary, we recommend sending us your panelboard model number so we can confirm a proper fit.

Availability of specific BDA-frame breakers can fluctuate. Northern Breaker Group specialises in obsolete and hard-to-find breakers across Canada, so even if this unit has been discontinued or has long lead times through standard channels, we can often source new, reconditioned, or equivalent stock. Contact our Calgary, Edmonton, or Vancouver counters for a quote.

The 14kA (at 600Y/347V) interrupting rating defines the maximum fault current this breaker can safely clear without damage. For most commercial branch-circuit applications in Canada this is adequate, but installations closer to a utility transformer or with high available fault current may require a higher AIC-rated device. We recommend verifying the available short-circuit current at the point of installation with your engineer or having us assist with a suitable alternative if a higher rating is needed.