Air Circuit Breakers

While our website showcases a large assortment of our products, it does not reflect the complete inventory of products currently available. For real-time availability and to ensure we can meet your specific needs, please contact our sales team at 1-800-328-1842. New products arrive daily and our knowledgeable staff are happy to assist you in locating the exact item(s) you need.

AK-2-25-2 GE 600A Frame 600A Rated 600V EO/DO Air Circuit Breaker

General Electric AK-1-25-2 Air circuit breaker; 600 amp frame, 600 volt, 600 amp rated. Electrically operated, 208 volt AC, draw-out, series over current tripping device, type EC-1, instantaneous function. Sold used electrically OK.
SKU: AK-2-25-2 EMSCO #21886

AK-1-25-9 GE 600A Frame 400A Rated 600V EO/DO Air Circuit Breaker

General Electric AK-1-25-9 Air Circuit Breaker; 600 amp frame, 600 volt, 600 amp rated. Electrically operated (208 Volt), draw-out series, over current tripping device type EC-2, instantaneous function. Sold used electrically OK.
SKU: AK-1-25-9 EMSCO #21765

GE AK-3A-25 600A Frame/90A Rating EO/DO Air Breaker with LI Functions - Used, Electrically OK

General Electric AK-3A-25 low voltage power circuit breaker; 600 amp frame, 600 volt. Electrically operated, draw out 125 volt DC, electrically closing mechanism, 90 amp breaker rating, power sensor, LI functions. Used, electrically OK.
SKU: AK-3A-25 #21463

AK-3A-25 GE 600A Frame 200A Sensors EO/DO Air Breaker Fused

General Electric AK-3A-25 low voltage power circuit breaker; 600 amp frame, 600 volt, 200 amp rated. Electrically operated, 125 volt DC (90-130 volt range), draw-out, power sensor trip unit, type PS-1A with LI functions. Used electrically OK.
SKU: AK-3A-25 #20833

AK3A-25 GE 600A Frame 300A Rated 600V EO/DO Air Breaker

General Electric AK3A-25 low voltage power circuit breaker; 600 amp frame, 300 amp sensors, 600 volt. Electrically operated, 125 volt DC, (90-140 volt DC range), draw-out, 125 volt DC shunt trip, power sensor trip unit type PS-1A with LI functions. Sold used electrically OK.
SKU: AK-3A-25 EMSCO #20845

AK-3A-25 GE 600A Frame 300A Sensors EO/DO Air Breaker Fused LI

General Electric AK-3A-25 low voltage power circuit breaker; 600 amp frame, 600V volt, 300 amp rated. Electrically operated, 125 volt DC (90-130 volt range), draw-out, power sensor trip unit type PS-1A with LI functions.
SKU: AK-3A-25 #20834

AK3A-25 GE 600A Frame 400A Rated 600V EO/DO Air Breaker LI

General Electric AK3A-25 low voltage power circuit breaker; 600 amp frame, 400 amp sensors, 600 volt. Electrically operated, 125 volt DC, (90-140 volt DC range), draw-out, 125 volt DC shunt trip power sensor trip unit type PS-1A with LI functions. Sold used electrically OK.
SKU: AK-3A-25 EMSCO #20844

AK-3A-25 GE 600A Frame 400A Sensors EO/DO Air Breaker Fused LI

General Electric AKU-3A-25 low voltage power circuit breaker; 600 amp frame, 600 volt, 400 amp rated. Electrically operated, 125 volt DC, (90-130 volt range), draw-out, power sensor trip unit type PS-1A with LI functions. Used electrically OK.
SKU: AK-3A-25 #20835

AK-3A-25 GE 600A Frame 400A Sensors EO/DO Air Breaker Fused LI

General Electric AKU-3A-25 low voltage power circuit breaker; 600 amp frame, 600 volt, 400 amp rated. Electrically operated, 125 volt DC, (90-130 volt range), draw-out, Power Sensor trip unit type PS-1A w/ LI functions. Used electrically OK.
SKU: AK-3A-25 #20836

AK-3A-25 GE 600A Frame 600A Rated EO/DO Air Breaker Fused LSI

General Electric AK-3A-25 low voltage power circuit breaker; 600 amp frame, 600 volt, 600 amp rated. Electrically operated, 125 volt DC (90-130 volt range), draw-out, Westinghouse RMS-2000 trip unit type LSI-5A with LSI functions. Used electrically OK.
SKU: AK-3A-25 #20837

AK-3A-25 GE 600A Frame 90A Sensors EO/DO Air Breaker Fused LI

General Electric AK-3A-25 low voltage power circuit breaker; 600 amp frame, 600 volt, 90 amp rated. Electrically operated, 125 volt DC (90-130 volt range), draw-out, power sensor trip unit type PS-1A with LI functions.
SKU: AK-3A-25 #20832

AK-5A-25-E GE Power Circuit Breaker 600A 600V EO/DO LI

General Electric AK-5A-25-E low voltage power circuit breaker; 600 amp, 600 volt. Electrically operated, draw-out, SST-Trip with LI functions, 24 volt DC control. Used electrically OK.
SKU: AK-5A-25-E #22231

AKU-3-25 GE Air Breaker 600A EO/DO Fused LI

General Electric AKU-3-25 low voltage power circuit breaker; 600 amp, 600 volt. Electrically operated, draw-out, power sensor trip unit 'LI" functions, control device: 24 volt DC, closing solenoid: 460 volt. Used electrically OK.
SKU: AKU-3-25 EMSCO #22167

AKU-5-25-E GE Air Breaker 600A 600V EO/DO Fused LI

General Electric AKU-5-25-E low voltage power circuit breaker; 600 amp, 600 volt. Electrically operated, draw-out, SST solid state trip device "LI" functions. Used electrically OK.
SKU: AKU-5-25-E #21845

K-600 ITE Air Breaker 600V 600A EO/DO

ITE K-600 Power Circuit Breaker; 600 amps, 600 volts. Electrically operated, draw-out, no trip unit. Used electrically OK.
SKU: K-600-EO-DO-Red-#23029

K-600 ITE Air Breaker 600V 600A EO/DO Black

ITE K-600 Low Voltage Power Circuit Breaker; 600 amps, 600 volts, black back plate. Electrically operated, draw-out, no trip unit. Used electrically OK.
SKU: K-600-EO-DO-Black-#23129

K-600 ITE Air Breaker 600V 600A EO/DO Black

ITE K-600 Power Circuit Breaker; 600 amps, 600 volts, black back plate. Electrically operated, draw-out, no trip unit. Used electrically OK.
SKU: K-600-EO-DO-Black-#23130

K-600 ITE Air Breaker 600V 600A EO/DO No Trip Unit Black

ITE K-600 Power Circuit Breaker; 600 amps, 600 volts, black back plate Electrically operated, draw-out, no trip unit. Used electrically OK.
SKU: K-600-EO-DO-Black-#22953

K-600 ITE Air Breaker 600V 600A EO/DO No Trip Unit Black

ITE K-600 Power Circuit Breaker; 600 amps, 600 volts, black back plate. Electrically operated, draw-out, no trip unit. Used electrically OK.
SKU: K-600-EO-DO-Black-#22954

K-600 ITE Air Breaker 600V 600A EO/DO No Trip Unit Black

ITE K-600 Power Circuit Breaker; 600 amps, 600 volts, black back plate. Electrically operated, draw-out, no trip unit. Used electrically OK.
SKU: K-600-EO-DO-Black-#22955

Used and Refurbished Air Circuit Breakers

Air Circuit Breakers (ACB’s) use air to extinguish electrical sparks. When a fault occurs, these circuit breakers disrupt the circuit by releasing a burst of compressed air, extinguishing the arc. This isolates the defective section of the system, preventing damage. High-pressure air cools the electrical arc.

Inventory Selection of Air Circuit Breakers to Match and Replace Yours

Our inventory features a wide range of air circuit breaker types to match and replace your existing electrical equipment seamlessly, ensuring compatibility and optimal performance for different applications. Whether you need a specific voltage rating, current capacity, or unique design, we have options that suit your needs.

New and Refurbished Air Circuit Breakers -- It's Your Choice

We offer customers the flexibility to choose between new and refurbished ACB’s. New circuit breakers ensure the latest technology and warranties, while refurbished breakers provide cost-effective solutions without compromising quality, backed by thorough inspections and testing.

Electrical testing equipment Certifies Quality and Performance

Our products undergo rigorous electrical testing using the newest test equipment to guarantee quality, safety, and optimal performance. Each air circuit breaker is thoroughly inspected, ensuring it meets industry standards and specifications.

Specifications Based on Your Power Requirements

To specify the right air circuit breaker, consider power requirements such as voltage, current rating, breaking capacity, and the type of application. In most cases, air circuit breakers are used where there’s high risk of fire or explosion. Air Breakers are typically used for low voltages up to 15KV.

Our expert team can guide you through selecting the most suitable breaker for your specific power needs.

What Type of Air Circuit Breaker Do You Need?

Air Breaker Type

How the Breaker Type Works

Applications

Plain Break Air Breaker

Utilizes a pair of contacts within a chamber filled with air to interrupt the electrical circuit. When the contacts separate, an arc forms and is extinguished by the surrounding air.

Commonly used in low-voltage applications like residential and commercial settings, protecting against overcurrents and short circuits.

Magnetic Blowout Air Breaker

Uses a magnetic field to drive the arc away from the contacts, ensuring quick interruption and extinguishing of the arc. The magnetic force redirects the arc into a chute, effectively extinguishing it.

Often found in industrial and heavy-duty settings due to their capability to handle high fault currents, making them ideal for heavy machinery and large-scale equipment protection.

Air Chute Breaker

Uses a series of parallel plates to create a chute for the arc. When the contacts open, the arc is diverted into the chute, where it is elongated, cooled, and extinguished before being directed toward the exhaust vent.

Commonly applied in medium-voltage power distribution systems, particularly in substations, to protect transformers and other critical power equipment from faults and overloads.

Air Blast Breaker

Relies on a high-pressure air blast to extinguish the arc. The compressed air directed towards the arc causes rapid cooling and interruption, ensuring efficient breaking of the circuit.

Primarily utilized in high-voltage applications like power stations and critical infrastructure such as data centers and hospitals, offering reliable protection against high fault currents and maintaining system integrity.