Siemens Q120 20 Amp Circuit Breaker
Siemens Q120 20 amp circuit breakers are commonly used for circuit protection in residential, commercial, and light industrial electrical panels. Electrical Supplies Unlimited (ESU) buys and sells new, used, surplus, obsolete, and hard-to-find Siemens Q120 circuit breakers for electricians, electrical contractors, homeowners, facility managers, businesses, and other customers nationwide.
The Siemens Q120 is part of the Siemens QP family of plug-in circuit breakers. The Q120 is a 20 amp, single-pole circuit breaker rated for 120 volts and is designed for use in compatible Siemens electrical panels and load centers.
Siemens Q120 20 Amp Circuit Breakers for Sale
Siemens Q120 20 Amp Circuit Breaker
ESU maintains access to a wide variety of electrical equipment, including Siemens Q120 20 amp circuit breakers. Depending on availability, we may have new, previously owned, surplus, discontinued, or obsolete Siemens breakers available.
The Siemens Q120 is a single-pole, 20 amp circuit breaker designed for compatible Siemens load centers and electrical panels. It is part of the Siemens Type QP circuit breaker family and uses a plug-in mounting configuration.
The Q120 is rated for 120 volts and has a 10 kA interrupting rating. As with any replacement circuit breaker, the specific breaker and electrical panel should be verified for compatibility before installation.
Because Siemens manufactures several different circuit breaker families and configurations, it is important to verify the exact catalog number and panel compatibility. A breaker with the correct amperage is not necessarily compatible with every Siemens electrical panel.
Common Siemens Q120 Circuit Breaker Searches
When searching for a Siemens Q120 20 amp breaker, customers may encounter several descriptions and search terms. Common searches include:
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The exact catalog number should always be checked before ordering a replacement. Other specifications, including the number of poles, voltage rating, interrupting capacity, mounting configuration, and panel compatibility, can affect whether a particular Siemens breaker is appropriate for an application.
Siemens Q120 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 Siemens Q120 circuit breaker.
- Manufacturer: Siemens
- Product family: QP
- Catalog number: Q120
- Amperage: 20 amps
- Poles: 1 pole
- Voltage: 120 volts AC
- Interrupting rating: 10 kA
- Mounting: Plug-in
- Breaker type: Siemens Type QP
- Application: Compatible Siemens electrical panels and load centers
The Siemens Q120 is specifically a 20 amp single-pole breaker. Customers looking for a Siemens 20 amp circuit breaker should verify the complete catalog number and electrical panel compatibility rather than relying solely on the amp rating.
Used Siemens Q120 20 Amp Circuit Breakers
A used Siemens Q120 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 locate a specific Siemens breaker that may not be readily available through conventional electrical distributors.
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 Siemens electrical equipment.
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, interrupting rating, and other applicable specifications.
Learn more about purchasing previously owned breakers in our guide to used circuit breakers and whether they are safe.
Siemens Q120 Replacement Circuit Breakers
When a Siemens Q120 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 Siemens name, QP designation, Q120 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 Siemens breaker.
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 Siemens Q120 Breakers
Although Siemens QP circuit breakers remain widely used, 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 Siemens Q120 20 Amp Circuit Breakers
Do you have surplus Siemens Q120 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 Siemens Q120 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 Siemens 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 Siemens and other major manufacturers
- Serves electricians, contractors, businesses, and industrial customers
- Nationwide buying and selling of electrical equipment
Find a Siemens Q120 20 Amp Circuit Breaker
If you need a Siemens Q120 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 Siemens Q120 circuit breakers. Call Electrical Supplies Unlimited at 858-558-2850 to discuss your requirements or the electrical equipment you have available to sell.