Miniature Circuit Breaker, QO Series, 40A, 2 Pole, 240V AC, 10kA at 120/240V AC MPN:QOB240H
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In Stock
Free Shipping
In Stock
SKU
510-G0839478
Miniature Circuit Breaker, QO Series, 40A, 2 Pole, 240V AC, 10kA at 120/240V AC
The Square D QO Series Miniature Circuit Breaker is a reliable and efficient solution for protecting your electrical system. Suitable for use in commercial and industrial applications, this 40A, 2 Pole, 240V AC breaker provides 10kA of interrupting capacity at 120/240V AC. Its compact design makes it easy to install in tight spaces, and its robust construction ensures long-lasting performance. Ideal for use in panelboards, the QO Series breaker helps prevent electrical fires and equipment damage by automatically shutting off power in the event of an overload or short circuit, providing peace of mind for building owners and operators.
Top product features:
- Protects against electrical overloads by interrupting the circuit when excessive current is detected
- Detects and responds to ground faults in 2-pole circuits
- Interrupts 10kA at 120/240V AC to prevent electrical fires and damage
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 11 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 1.00
- Package Width: 1.00
- Package Height: 1.00
- Package Weight: 0.71
Product info last updated on February 7, 2026 4:41pm UTC
Category: Circuit Protection