BDA34125 SQUARE D 3P 125A 480Y/277V 18KA I LINE

Standard · 125A · 3-Pole · 480Y/277V · Plug-In

The BDA34125 Square D 3-Pole Circuit Breaker offers reliable protection for your electrical systems. With a capacity of 125A and a voltage rating of 480Y/277V, this breaker is designed for heavy-duty applications. It features an impressive short-circuit current rating of 18KA, ensuring safety and performance in demanding environments.

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SKU SQDBDA34125 Categories , ,
Specifications
BrandSquare D
TypeStandard (Thermal-Magnetic)
Amperage125 A
Poles3-Pole
Voltage480Y/277V
Interrupting Rating18 kA
MountingPlug-In
Frame / SeriesBDA
Catalogue #SQDBDA34125
Panel Compatibility

The Square D BDA34125 is a 3-pole, 125 A, 480Y/277 V I-Line plug-in breaker from the BDA frame series, designed to mount in Square D I-Line panelboards and switchboards that accept the I-Line plug-in bus system. It is suited for commercial and industrial distribution applications — not residential loadcentres. The 18 kA short-circuit current rating (SCCR) must be equal to or less than the available fault current at the point of installation per Canadian Electrical Code requirements. Send us your panelboard model and we'll confirm fit before you order.

The BDA34125 uses Square D's I-Line plug-in connection, so it is compatible with Square D I-Line panelboards and switchboards designed for that bus system — such as NF, NQ, and PQ series I-Line enclosures. It is not interchangeable with QO or Homeline residential loadcentres. Share your panelboard model number with us and we'll verify compatibility before you purchase.

Yes. The BDA34125 is rated 480Y/277 V, 3-pole, 125 A, making it well-suited for 480Y/277 V three-phase commercial and industrial distribution systems common in Canadian facilities. Always confirm that the panel's available fault current does not exceed the breaker's 18 kA SCCR at that point in the system, as required by the Canadian Electrical Code (CEC).

Absolutely. Sourcing obsolete and hard-to-find Square D breakers like the BDA34125 is a core specialty of Northern Breaker Group. We serve customers across Canada from our Calgary, Edmonton, and Vancouver counters and maintain an extensive inventory of legacy and discontinued breakers. Contact us for a quote and availability check — we'll do our best to get you what you need quickly.

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