Square D QO 20 Amp Circuit Breaker
Square D QO 20 amp circuit breakers are among the most widely recognized circuit breakers used in residential, commercial, and light industrial electrical panels. Electrical Supplies Unlimited (ESU) buys and sells new, used, surplus, obsolete, and hard-to-find Square D QO 20 amp circuit breakers for electricians, electrical contractors, homeowners, facility managers, businesses, and other customers nationwide.
The Square D QO product family is manufactured by Schneider Electric and includes circuit breakers designed for compatible Square D electrical panels and equipment. QO breakers are available in different configurations, including single-pole and multi-pole breakers, with different voltage and interrupting ratings depending on the specific model.
Square D QO 20 Amp Circuit Breakers for Sale
Square D QO 20 Amp Circuit Breaker
ESU maintains access to a wide variety of electrical equipment, including Square D QO 20 amp circuit breakers. Depending on availability, we may have new, previously owned, surplus, discontinued, or obsolete QO breakers available.
One of the most common products in this family is the Square D QO120, a 20 amp single-pole QO circuit breaker. QO breakers are also available in two-pole and three-pole configurations, as well as specialized versions for applications requiring additional protection or specific electrical characteristics.
Because Square D manufactures several different breaker families, it is important to verify that a replacement is specifically designed for the electrical panel or equipment where it will be installed. A breaker with the correct amperage is not necessarily compatible with every Square D panel.
Common Square D QO 20 Amp Circuit Breakers
When searching for a Square D QO 20 amp breaker, customers may encounter several different configurations and catalog numbers. Common searches include:
- Square D QO 20 amp circuit breaker
- Square D QO20 amp breaker
- Square D QO120 circuit breaker
- Square D QO 20 amp single pole breaker
- Square D QO 20 amp 2 pole breaker
- Square D QO 20 amp 3 pole breaker
- Used Square D QO 20 amp circuit breaker
- Square D QO 20 amp replacement breaker
- Obsolete Square D QO 20 amp breaker
- Discontinued Square D QO circuit breaker
The exact catalog number should always be checked before ordering a replacement. Other specifications, including the number of poles, voltage rating, interrupting capacity, and breaker type, can affect whether a particular QO breaker is appropriate for an application.
Square D QO 20 Amp Breaker Specifications
The 20 amp rating identifies the breaker's current rating, but it is only one of several specifications that should be considered when identifying a Square D QO circuit breaker.
- Manufacturer: Square D / Schneider Electric
- Product family: QO
- Amperage: 20 amps
- Poles: Single-pole, two-pole, three-pole and other configurations depending on model
- Voltage: Varies by specific breaker model
- Interrupting rating: Varies by model
- Mounting: Designed for compatible Square D QO equipment
- Protection type: Varies depending on the specific QO breaker
- Catalog number: Important for identifying an exact replacement
For example, the QO120 is a commonly encountered 20 amp single-pole QO breaker. However, customers looking for a 20 amp QO breaker should verify the complete catalog number and panel compatibility rather than relying solely on the amp rating.
Used Square D QO 20 Amp Circuit Breakers
A used Square D QO 20 amp circuit breaker can be a practical option when replacing a breaker in an older electrical panel, particularly when the customer needs to match an existing breaker or obtain a specific configuration.
ESU has more than 40 years of experience buying and selling previously owned electrical equipment. We specialize in used, surplus, obsolete, discontinued, and hard-to-find circuit breakers, including older Square D products.
Used breakers should be properly identified and inspected before installation. The replacement breaker should match the requirements of the electrical panel and application, including the manufacturer, breaker family, amperage, poles, voltage, mounting configuration, and other applicable ratings.
Learn more about purchasing previously owned breakers in our guide to used circuit breakers and whether they are safe.
Square D QO Replacement Circuit Breakers
When a Square D QO breaker needs to be replaced, identifying the original breaker is the best place to start. The information printed on the breaker can help determine the correct replacement.
Look for the QO designation, catalog number, amperage, voltage rating, number of poles, and other markings printed on the breaker. A photograph of the breaker label can also be helpful when trying to identify an older or unusual model.
Our Circuit Breaker Identification Guide provides additional information about identifying electrical breakers.
You can also review our Circuit Breaker Compatibility Guide before selecting a replacement. Remember that breakers should only be installed in panels and equipment for which they are approved.
Obsolete and Hard-to-Find Square D QO Breakers
Although Square D QO breakers remain widely available, older electrical systems can sometimes require a specific breaker configuration that is no longer readily available through conventional electrical distributors.
ESU specializes in helping customers locate obsolete, discontinued, and hard-to-find circuit breakers. This can be particularly valuable when maintaining older commercial buildings, industrial equipment, electrical panels, or other systems where the original breaker needs to be matched.
Learn more about finding older electrical equipment through our pages on obsolete circuit breakers, discontinued circuit breakers, and hard-to-find circuit breakers.
We Buy Square D QO 20 Amp Circuit Breakers
Do you have surplus Square D QO 20 amp circuit breakers that you no longer need? ESU buys electrical equipment from electricians, electrical contractors, businesses, manufacturers, facilities, electrical distributors, and other organizations.
We purchase new, used, surplus, obsolete, and discontinued circuit breakers. If you have a single breaker, multiple breakers, or a larger quantity of surplus electrical equipment, contact ESU to discuss what you have available.
We also buy many other types of electrical equipment, including transformers, electrical panels, disconnects, safety switches, motor controls, fuses, relays, and other electrical distribution equipment.
Why Buy Square D Circuit Breakers from ESU?
- Over 40 years of experience with electrical equipment
- New and used circuit breakers available
- Specializes in obsolete and discontinued electrical equipment
- Experience locating hard-to-find replacement breakers
- Wide range of Square D and other major manufacturers
- Serves electricians, contractors, businesses, and industrial customers
- Nationwide buying and selling of electrical equipment
Find a Square D QO 20 Amp Circuit Breaker
If you need a Square D QO 20 amp circuit breaker, send ESU the information from your existing breaker whenever possible. A photograph of the breaker, catalog number, and electrical panel identification can help us determine what you need.
ESU can help locate new, used, surplus, obsolete, and hard-to-find Square D QO circuit breakers. Call Electrical Supplies Unlimited at 858-558-2850 to discuss your requirements or the electrical equipment you have available to sell.