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Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 22kA at 120/240V AC MPN:QOB340VH1021

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Brand: Square D
Part #: QOB340VH1021
UPC: 785901311317
SKU
510-G0841130
Regular Price $1,160.31 Special Price $828.79

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Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 22kA at 120/240V AC

The Square D QO Series Miniature Circuit Breaker is a reliable and efficient solution for protecting your electrical system. This 40A, 3-pole breaker is designed for use in 120/240V AC applications and can withstand up to 22kA of fault current. Perfect for residential and commercial settings, it provides peace of mind by automatically shutting off power in the event of an overload or short circuit. With its compact design and easy installation, this breaker is ideal for new construction or retrofit projects, making it a valuable addition to any electrical system.

Top product features:

  • Protects against electrical overloads and short circuits
  • Trip-free mechanism allows for easy reset without needing to remove the circuit breaker from the panel
  • Ratings of 40A and 22kA at 120/240V AC provide reliable protection for electrical circuits

Top product applications:

  • Residential Electrical Panel
  • Commercial Electrical Panel
  • Industrial Electrical Panel
Miniature Circuit Breaker 240V 40A, Series QOB

Additional Information

  • Country of Origin: MX
  • Drop Ship Item: Yes
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 7 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 1.00
  • Package Width: 1.00
  • Package Height: 1.00
  • Package Weight: 1.33
Product info last updated on February 21, 2026 2:31pm UTC Category: Circuit Protection
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In stock