BDA160303 SQUARE D 1P 30A 347/600V B PH I LINE

The BDA160303 uses Square D's I-Line plug-in mounting system and is designed for Square D I-Line panelboards and switchboards rated for 347/600V commercial and industrial service. It is not compatible with residential QO or Homeline loadcentres. If you're unsure whether your panel is I-Line compatible, share your panel model number with us and we'll verify the fit.

The 'B PH' designation indicates this breaker is configured and bussed for the Phase B position within a Square D I-Line panelboard. I-Line breakers are phase-specific in their plug-in orientation, so it's important to match the correct phase position to your panel's bus arrangement. Contact us if you need Phase A or Phase C variants — we can help source the right unit.

Yes — the BDA160303 is rated for 347/600V AC, which aligns with the standard 600V distribution voltage used across Canadian commercial and industrial facilities. Its 14kA interrupting rating must meet or exceed the available fault current at the point of installation; if your system has higher fault levels, a higher-rated frame may be required. We recommend confirming with your electrical engineer or having us assist with selection.