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.

50H-3 Federal Pioneer Air Breaker 2000A 600V MO/DO

Federal Pioneer 50H-3 Air circuit breaker; 2000 amp frame, 2000 amp trip, 600 volt, 800/1200/2000 amp CT, three pole. AC pro trip, manually operated, draw-out. Used electrically OK.
SKU: 50H-3 EMSCO#21441

50DHP250 WESTINGHOUSE 5KV 2000A EO/DO Air Circuit Breaker

Westinghouse 50DHP250 air circuit breaker; 2000 amp, 5 KV rated, electrically operated, draw-out. Used as is.
SKU: 50DHP250 - EMSCO # 19943

50DHP250 Westinghouse Air Breaker 2000A 5KV EO/DO

Westinghouse 50DHP250 Air Breaker; 2000 amp, 5 KV. Electrically operated, draw-over, closing volts: 190-250 AC, motor volts: 230 AC. Used sold electrically OK.
SKU: 50-DHP-250-EO-DO-#22770

50DHP250 Westinghouse Air Breaker 5KV 2000A EO/DO

Westinghouse 50DHP250 Air Breaker; 5 KV, 2000 amp, electrically operated, draw-out, 230-AC motor volts, 190-250-AC closing volts. Used electrically OK.
SKU: 50DHP250-#22980

50DHP250 Westinghouse Air Breaker 2000A 5KV EO/DO

Westinghouse 50DHP250 Air Breaker; 2000 amp, 5 KV. Electrically operated, draw-out, closing volts: 190-250 AC. Used sold electrically OK.
SKU: 50-DHP-250-EO-DO-#22667

50DHP250 Westinghouse Air Breaker 2000A 5KV EO/DO

Westinghouse 50DHP250 Air Breaker; 2000 amp, 5 KV, electrically operated, draw-out, closing volts: 190-250 AC. Used sold electrically OK.
SKU: 50-DHP-250-EO-DO-#22668

50H-3 Federal Pioneer 2000A 600V Air Breaker MO/DO

Federal Pioneer 50H-3 Air Circuit Breaker; 2000 amp frame, 2000 amp trip, 600 volt, 800/1200/2000 amp CT, three pole, AC pro trip. manually operated, draw out. Used electrically OK.
SKU: 50H-3 EMSCO#21442

AK-2-100-3 GE Air Circuit Breaker 600V 4000A EO/DO LI

General Electric AK-2-100-3 low voltage power circuit breaker; 600 volt, 4000 amp. Electrically operated, draw-out, 230 closing volts, EC-1B trip, LI functions. Sold used electrically OK.
SKU: AK-2-100-3-EO-DO-#22925

AK-2-100-3 GE Air Circuit Breaker 4000A 600V EO/DO

General Electric AK-2-100-3 low voltage circuit breaker; 4000 amp, 600 volt. Electrically operated, draw-out, 230 closing volts, EC-1B trip, LSI functions. Sold used electrically OK.
SKU: AK-2-100-3-EO-DO-LSI-#21935

5HK ITE Air Circuit Breaker 4.76KV 2000A EO/DO

ITE 5HK Power Circuit Breaker; 4.76 KV, 2000 amp. Electrically operated, draw-out, 230 AC charge, 48 DC closing volts. Sold used electrically OK.
SKU: 5HK-#22964

5-HK-2000 ITE Air Circuit Breaker - 5KV 2000A EO/DO

ITE Type: 5-HK-2000 Power Circuit Breaker; 4,160 VAC nominal, 4,760 VAC max, 2000 amp. Electrically operated, draw-out, 230 VAC control voltage for Charge, 48 VDC control voltage for close & trip. MFG date 12/76. Sold used electrically OK.
SKU: 5-HK-2000

AK-2A-100-1 GE Air Breaker 4000A 600V MO/DO LI

General Electric AK-2A-100-1 low voltage power circuit breaker; 4000 amp, 600 volt. Manually Operated, draw-out, EC-1B trip, LI function. Used E-OK.
SKU: AK-2A-100-1-MO-DO-LI-#22341

AK-2A-100-1 GE Air Breaker 4000A 600V MO/DO LI

General Electric AK-2A-100-1 low voltage power circuit breaker; 4000 amp, 600 volt. Manually Operated, draw-out, EC-1B Trip LI function. Used E-OK.
SKU: AK-2A-100-1-MO-DO-LI-#22342

AK-3A-100 GE 4000A FRAME EO/DO AIR BREAKER POWER SENSOR TRIP LSG

General Electric AK-3A-100 low voltage power circuit breaker; 4000 amp frame. Electrically operated, draw-out, power sensor trip, LSG functions, trip/ closing voltage 120. Used electrically OK.
SKU: AK-3A-100 EMSCO #20827

AK-3A-100 GE 4000A FRAME EO/DO AIR BREAKER POWER SENSOR TRIP LSG

General Electric AK-3A-100 low voltage power circuit breaker; 4000 amp frame. Electrically operated, draw-out, power sensor trip, LSG functions, trip/closing voltage: 120. Used electrically OK.
SKU: AK-3A-100 EMSCO #20828

AK-3A-100 GE Air Breaker 600V 4000A MO/DO LS

General Electric AK-3A-100 low voltage A.C. power circuit breaker; 600 volt, 4000 amp. Manually operated, draw-out, power sensor trip with LS functions. Used electrically OK.
SKU: AK-3A-100-MO-DO-#22927

AK-T-2A-50 GE Air Breaker 2000A 600V MO/DO LSI

General Electric AK-T-2A-50 low voltage power circuit breaker; 2000 amp, 600 volt. Manually-operated, draw-out, EC-1 trip, LSI functions. Used E-OK.
SKU: AK-T-2A-50 #21820

AK-T-2A-50 GE 2000A Frame 600V EO/DO Air Breaker

General Electric AK-T-2A-50 low voltage power circuit breaker; 2000 amp frame, 600 volt. Manually operated, draw-out, over current tripping device. Sold used electrically OK.
SKU: AKT-2A-50 EMSCO #20820

AM-4.16-250-7C GE Magne-Blast Air Breaker 2000A 4.76KV EO/DO

General Electric AM-4.16-250-7C Magne-Blast Circuit Breaker; 2000 amp, 4.76 KV. Electrically operated, draw-out. Used electrically OK.
SKU: AM-4.16-250-7C-EO-DO-#21952

DB100 Westinghouse Air Breaker 4000A 600V EO/DO LS

Westinghouse DB100 Air Breaker; 4000 amp, 600 volt. Electrically operated, draw-out, over current trip device 4000 amp with LS functions. Used electrically OK.
SKU: DB100-EO-DO-LS-#22346

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.