Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 22kA at 120/240V AC MPN:QO340VH
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Free Shipping
In Stock
Free Shipping
In Stock
SKU
510-G6861242
Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 22kA at 120/240V AC
Protect your home or business with the Square D QO Series 40A 3-Pole Miniature Circuit Breaker. This reliable device safeguards against electrical overloads and short circuits, ensuring a safe and efficient electrical system. Suitable for use with QO load centers and NQ panelboards, it offers high interrupting capacity and is compatible with 120/240V AC systems. Its compact design and easy plug-in mounting make it a convenient addition to any electrical setup. Ideal for residential and commercial applications, this circuit breaker provides peace of mind and helps prevent electrical fires and damage.
Top product features:
- Protects against overloads and short circuits with a high interrupting capacity
- Has a 3-pole design to control multiple phases of electrical power
- Has a plug-in mounting style for easy installation in QO load centers and NQ panelboards
Top product applications:
- Home Electrical Panel Upgrade
- Commercial Electrical Panel Installation
- Industrial Electrical Panel Replacement
Miniature Circuit Breaker, Amps 40 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type High Interrupting Capacity, Number of Poles 3, DC Voltage Rating Not Rated, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Plug In, Compatible Panelboard/Load Center Series QO, Phase Three, Series QO, Max. AIR Rating 22kA at 120/240V AC, For Use With QO Load Centers and NQ Panelboards, Terminal Connection Lug, Frame Size 100A/QO, Length 3.12 in, Width 2.25 in, Depth 2.91 in
Additional Information
- Country of Origin: MX
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 3.80
- Package Width: 2.30
- Package Height: 3.40
- Package Weight: 1.09
Product info last updated on February 13, 2026 12:12am UTC
Category: Circuit Protection