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Miniature Circuit Breaker, QO Series, 90A, 3 Pole, 120/240V AC, 10kA at 120/240V AC MPN:QOB3901021

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In Stock
Brand: Square D
Part #: QOB3901021
UPC: 785901031055
SKU
510-G3100447
Regular Price $1,123.91 Special Price $802.79

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Miniature Circuit Breaker, QO Series, 90A, 3 Pole, 120/240V AC, 10kA at 120/240V AC

Protect your electrical system with the Square D QO Series 90A 3-Pole Miniature Circuit Breaker. Designed for use in Square D NQOD panelboards, this breaker provides reliable overcurrent protection for 120/240V AC systems. Its shunt trip mechanism ensures fast and safe disconnection in case of an overload or short circuit. With a maximum air rating of 10kA, this breaker is ideal for high-demand applications such as commercial kitchens, office buildings, and industrial facilities. Its compact size and bolt-on mounting style make it easy to install and replace, providing peace of mind and ensuring the integrity of your electrical system.

Top product features:

  • Trip circuit breaker for overcurrent protection
  • Detects and interrupts overloads and short circuits
  • Has a shunt trip mechanism for automatic reset

Top product applications:

  • Residential electrical panel
  • Commercial electrical panel
  • Industrial electrical panel
Miniature Circuit Breaker, Amps 90 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type Shunt Trip, Number of Poles 3, DC Voltage Rating 48V DC, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Bolt On, Compatible Panelboard/Load Center Series QO, Phase Three, Series QOB, Max. AIR Rating 10kA at 120/240V AC, For Use With Square D NQOD Panelboards, Terminal Connection Lug, Frame Size 100A/QO, Length 3.5 in, Width 3 in, Depth 2.91 in, Min. Operating Temp. 77 Degrees F

Additional Information

  • Country of Origin: MX
  • Drop Ship Item: Yes
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 12 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 4.10
  • Package Width: 3.20
  • Package Height: 3.70
  • Package Weight: 1.35
Product info last updated on February 7, 2026 2:04am UTC Category: Circuit Protection
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In stock