how much is a 30 amp circuit breaker



Whether you are a DIY enthusiast or a professional electrician, understanding the cost of a 30 amp circuit breaker is crucial. Circuit breakers are essential components of any electrical system, as they protect circuits from potential damage caused by overloading or short circuits. A 30 amp circuit breaker is commonly used for specific appliances, such as electric dryers, ovens, or air conditioning units. In this article, we will explore the factors that influence the cost of a 30 amp circuit breaker and provide you with a comprehensive understanding of the pricing and variables associated with this electrical essential.

Factors Affecting the Cost of a 30 amp Circuit Breaker

Circuit breakers come in various shapes, sizes, and brands, and each of these factors can affect the cost of a 30 amp circuit breaker. Understanding these factors will help you make an informed decision when purchasing a circuit breaker for your electrical system. Let's delve into the key factors that influence the price:

1. Brand and Quality

The brand and quality of a circuit breaker have a significant impact on its cost. Well-known and established brands often come with a higher price tag due to their reputation, reliability, and warranty offerings. In contrast, lesser-known brands or generic options may be more affordable but could potentially compromise on quality and long-term durability. When considering the cost of a 30 amp circuit breaker, it is essential to strike a balance between quality and affordability.

2. Type of Circuit Breaker

There are various types of circuit breakers available in the market, such as thermal-magnetic, magnetic, and ground fault circuit interrupters (GFCI). The type of circuit breaker required will depend on its specific application. For instance, a thermal-magnetic circuit breaker is suitable for general residential and commercial settings, while GFCI circuit breakers are designed to protect against electric shock in potentially wet locations, like bathrooms or kitchens. The cost of a 30 amp circuit breaker may vary based on its type and functionality.

3. Single-Pole vs. Double-Pole

Another factor to consider when evaluating the cost of a 30 amp circuit breaker is whether it is a single-pole or double-pole configuration. Single-pole circuit breakers provide protection for a single wire, while double-pole circuit breakers protect two wires. Generally, double-pole circuit breakers are more expensive than single-pole ones due to their additional capacity and ability to handle higher voltages. Assessing your electrical needs will help determine the appropriate configuration for your circuit breaker.

4. Current Ratings

The current rating of a circuit breaker is a key factor in its pricing. The current rating represents the maximum current the circuit breaker can handle without tripping. A circuit breaker with a higher current rating, such as a 30 amp circuit breaker, can handle a larger electrical load compared to one with a lower rating. Consequently, higher-rated circuit breakers often come with a higher price point. It is crucial to select a circuit breaker with the appropriate current rating to ensure optimal performance and safety.

5. Installation and Certification

The cost of a 30 amp circuit breaker does not solely include the price of the equipment itself but also encompasses the installation and certification expenses. Unless you have the necessary electrical expertise, it is advisable to consult a licensed electrician for the installation of a circuit breaker. The electrician's labor charges and associated costs will add to the overall price. Additionally, certifications and approvals from regulatory bodies like UL (Underwriters Laboratories) or CSA (Canadian Standards Association) may contribute to the cost but ensure compliance with safety standards.


In summary, the cost of a 30 amp circuit breaker depends on several factors, including the brand and quality, type of circuit breaker, single-pole vs. double-pole configuration, current ratings, and installation and certification expenses. It is essential to consider these factors carefully before making a purchase to ensure that the circuit breaker meets your specific electrical requirements and adheres to safety standards. By understanding the variables that influence the cost, you can make an informed decision and invest in a reliable and efficient 30 amp circuit breaker for your electrical system.


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