Electrical Supplies Unlimited supplies a large stock of Low Voltage Circuit Breakers (600 Volts) and Medium Voltage Circuit Breakers (5-27kV).
Electrical Supplies Unlimited has been in business for over 40 years! ESU buys, sells and stocks a very large variety of Circuit Breakers. We stock the following manufacturers products regularly and can either provide you the circuit breaker in question or help you find it:
Low Voltage Breakers
Electrical Supplies Unlimited is your trusted source for high-quality low-voltage circuit breakers (600 volts) designed to keep your electrical systems safe and reliable. Our extensive selection includes industry-leading brands and models, ensuring you get the best protection for commercial, industrial, and residential applications. Unlike medium-voltage circuit breakers, which operate at voltages between 1,000V and 72,000V and are used in large-scale power distribution networks, low-voltage circuit breakers are specifically designed for smaller-scale applications where precise overload and short-circuit protection are crucial. At Electrical Supplies Unlimited, we offer top-tier low-voltage circuit breakers that combine performance, durability, and affordability to meet your specific needs.
What makes low-voltage circuit breakers stand out is their ability to provide quick and effective protection for circuits running at 600 volts or less. Unlike medium-voltage breakers, which often require vacuum or gas insulation for arc suppression, low-voltage breakers use thermal-magnetic or electronic trip units for rapid fault detection and response. These breakers are ideal for panel boards, switchgear, and control centers, ensuring smooth and uninterrupted electrical operation. At Electrical Supplies Unlimited, we take pride in offering a vast inventory of low-voltage circuit breakers with expert guidance to help you select the right solution for your system. Whether you need replacements, upgrades, or new installations, our team is here to provide you with the highest quality electrical components at competitive prices.
Some Brands we stock include:
Federal Pacific
Square D
Roller Smith
GE - General Electric
Westinghouse-Cutler-Hammer
Siemens-Allis Chalmers
ABB-BBC-ITE-Gould
Medium Voltage Breakers
Electrical Supplies Unlimited is also a go-to source for high-quality medium-voltage circuit breakers (5-27kV), offering reliable solutions for industrial, commercial, and utility applications. Our extensive selection of medium-voltage circuit breakers ensures optimal performance, safety, and durability for power distribution systems. Whether you're upgrading an existing system or installing a new one, our expert team is here to guide you toward the best solutions for your electrical needs. With a commitment to superior quality and customer satisfaction, Electrical Supplies Unlimited is the trusted supplier for businesses looking for top-tier circuit breakers in the industry.
One key distinction between medium-voltage and low-voltage circuit breakers is their capacity and application. While low-voltage circuit breakers (typically rated below 1,000V) are designed for residential and commercial electrical panels, medium-voltage circuit breakers (ranging from 5-27kV) are essential for large-scale power distribution, industrial plants, and substations. Medium-voltage breakers are built to handle higher fault currents and provide enhanced arc flash protection, ensuring greater reliability in high-power environments. At Electrical Supplies Unlimited, we provide top-of-the-line medium-voltage circuit breakers tailored to your specific power needs, ensuring efficiency, safety, and long-term durability.
GE
Westinghouse-Cutler-Hammer
Siemens-Allis Chalmers
ABB-BBC-ITE-Gould
Federal Pacific
Square D