BDA34110 SQUARE D 3P 110A 480Y/277V 18KA I LINE
The BDA34110 Square D Circuit Breaker is a robust 3-pole, 110A device designed for 480Y/277V applications. With an impressive interrupting capacity of 18KA, it ensures reliable protection for your electrical systems. Ideal for both commercial and industrial use, this breaker offers exceptional durability and performance. Perfect for your power distribution needs.
The BDA34110 uses Square D's I-Line plug-in mounting system, so it is designed for Square D I-Line panelboards and switchboards rated for 480Y/277V commercial and industrial service. It is not interchangeable with Square D QO or Homeline residential loadcentres. Send us your panelboard model number and we can confirm the fit.
Square D's BDA-frame breakers are an older I-Line series and can be difficult to source through standard distribution channels. Northern Breaker Group specialises in obsolete and hard-to-find breakers — contact our Calgary, Edmonton, or Vancouver counters for current stock and lead-time information, or request a quote online.
No. The BDA34110 is rated at 18kA symmetrical interrupting capacity at 480Y/277V. If your system's available fault current (AFC) exceeds 18kA, this breaker must not be used — you would need a higher-rated device or an approved current-limiting fuse combination. Always verify your AFC with your electrical engineer or authority having jurisdiction (AHJ) to ensure compliance with the Canadian Electrical Code.
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