Q40 - 40Amp Circuit Breaker
- 40 Amp
- 10k @ 120VAC
- 1 Pole
Purchase Options: New Aftermarket Replacement
Q40 - 40Amp Circuit Breaker Description
Q40 - 40Amp Circuit Breaker
The Q40 40 amp circuit breaker is a practical solution for protecting 120-volt branch circuits in residential and light commercial electrical systems. It’s a single-pole breaker rated for 40 amps, designed to trip when a circuit is overloaded or a fault occurs, helping reduce the chance of wiring damage or equipment failure. With a 10,000 AIC interrupting rating, it’s capable of safely handling short-circuit conditions commonly found in everyday electrical installations.
This breaker uses a Q-frame design with a plug-on connection, so it seats easily into compatible panels without extra steps or special tools. Electricians often choose it for replacements and service work because it installs cleanly and performs consistently once in place. It’s straightforward, dependable, and built for real-world use—not overengineered, not complicated.
Key Features and Benefits
- 40 amp rating for higher-load branch circuits
- Single-pole configuration for standard 120V applications
- Plug-on style helps speed up installation and servicing
- Designed for steady, reliable operation in typical electrical environments
Technical Specifications
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Poles: 1
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Frame Type: Q
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Amperage: 40A
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Voltage Rating: 120 VAC
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Interrupting Capacity: 10 kA
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Dimensions:
- Width: 0.75 inches
- Length: 4.81 inches
- Depth: 2.50 inches
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Approximate Weight: 1.75 lbs
Material Compliance and Certifications
- The Q40 circuit breaker is manufactured using quality materials intended for long-term use in electrical distribution systems.
- It is built to meet applicable industry safety and performance standards, helping support code-compliant installations and dependable operation over time.
Where It Works Best
- This breaker is commonly used for maintenance, panel servicing, and replacement applications in homes, small commercial buildings, and light industrial settings.
- It’s a good fit when a reliable 40 amp, single-pole breaker is needed and ease of installation matters.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Specifications
- Width:0.75
- Height:4.81
- Depth:2.5
- Poles:1
- Amperes:40
- A.I.C. Rating & Volts:10k @ 120VAC
- Type:Q
- Approx Dimensions:0.75"W x 4.81"L x 2.50"D
- Additional Notes:Plug-On, Circuit Breaker
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).