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The BDA34090 is a Square D 3-Pole Circuit Breaker rated at 90A, designed for 480Y/277V applications with an impressive interrupting capacity of 18KA. Ideal for commercial and industrial settings, this durable breaker ensures reliable protection against overloads and short circuits, making it a top choice for your electrical system needs.
The BDA34090 uses Square D's I-Line plug-in connection, so it is designed for Square D I-Line panelboards and switchboards — commercial/industrial distribution equipment that accepts the I-Line bus stab interface. It is not interchangeable with residential QO or Homeline loadcentres. If you're unsure whether your panelboard accepts I-Line breakers, send us the panel model and we'll confirm.
Availability on BDA-frame breakers can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers, and we maintain an extensive inventory of Square D commercial and industrial breakers across our Calgary, Edmonton, and Vancouver locations. Contact us for a quote and current stock status — we can often source units that are no longer available through standard distribution channels.
Yes. The BDA34090 is rated for 480Y/277V 3-phase systems with an 18kA interrupting capacity, making it suitable for motor branch-circuit and feeder protection in commercial and industrial applications. However, for motor protection specifically, you should verify that the breaker's trip characteristics meet the motor's full-load amperage and starting current requirements per CEC (Canadian Electrical Code) Section 28, or consult your engineer of record.
