Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 10kA at 120/240V AC MPN:QOB3401021
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In Stock
Free Shipping
In Stock
SKU
510-G1678661
Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 10kA at 120/240V AC
Protect your electrical systems with the Square D QO Series 40A 3-Pole Miniature Circuit Breaker. This reliable device is designed for use in Square D NQOD panelboards and provides fast and effective protection against overloads and short circuits. With a 10kA air rating at 120/240V AC, it can handle high electrical demands. The shunt trip mechanism ensures safe and efficient operation. Suitable for a variety of applications, including residential and commercial use, this circuit breaker is a must-have for any electrical system. Its compact size and easy installation make it a convenient choice for professionals and DIYers alike.
Top product features:
- Trip-free shunt trip circuit breaker mechanism
- Three-pole design for three-phase applications
- 10kA short-circuit interrupting capacity at 120/240V AC
Top product applications:
- Residential Electrical Panel Upgrade
- Commercial Electrical Panel Installation
- Industrial Electrical Panel Retrofit
Miniature Circuit Breaker, Amps 40 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 3.12 in, Width 3 in, Depth 2.91 in, Min. Operating Temp. 77 Degrees F
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: 3.50
- Package Width: 3.50
- Package Height: 4.60
- Package Weight: 1.18
Product info last updated on March 12, 2026 10:39pm UTC
Category: Circuit Protection