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.

AKR-6D-75 GE 3200A Frame 3200A Rated 600V MO/DO Air Breaker LSG

General Electric AKR-6D-75 low voltage power circuit breaker; 3200 amp frame, 600 volt, 3200 amp sensors. Manually operated, draw-out, Micro Versa Trip (TA9VT32MGA3) with LSG functions. Used electrically OK.
SKU: AKR-6D-75 EMSCO #21751

AKR-6D-75 GE Air Breaker 3200A FRAME 600V MO/DO

General Electric AKR-6D-75H low voltage power circuit breaker; 3200 amp frame, 600 volt AC. Manually operated, draw-out, Versa Trip, 3200 amp rating plug.
SKU: AKR-6D-75 EMSCO#22148

AKR-7D-75 GE 3200A Frame 3200A Rated 600V MO/DO Air Breaker LS

General Electric AKR-7D-75 low voltage power circuit breaker; 3200 amp frame, 600 volt, 3200 amp sensors. Manually operated, draw-out, RMS-9, Micro Versa Trip, programmer (TS32LST1) with LS functions. Used electrically OK.
SKU: AKR-7D-75 EMSCO #21664

AKR-7D-75 GE 3200A Frame 3200A Rated 600V MO/DO Air Breaker

General Electric AKR-7D-75 low voltage power circuit breaker; 3200 amp frame, 600 volt, 3200 amp rating plug (TR32S3200). Manually operated, draw-out, RMS-9, Micro Versa Trip programmer (TS32LST1) with LS functions. Used electrically OK.
SKU: AKR-7D-75 EMSCO #21672

AKR-7D-75 GE 3200A Frame 3200A Rated 600V MO/DO Air Breaker LS

General Electric AKR-7D-75 low voltage power circuit breaker; 3200 amp frame, 600 volt, 3200 amp rating plug (TR32S3200). Manually operated, draw-out, RMS-9, Micro Versa Trip programmer (TS32LST1) with LS functions. Used electrically OK.
SKU: AKR-7D-75 EMSCO #21673

AKR-7D-75 GE AIR BREAKER 3200A FRAME 600V MO/DO RMS-9 LS

General Electric AKR-7D-75H low voltage power circuit breaker; 3200 amp frame, 600 volt AC. Manually operated, draw-out, RMS-9, trip with LS functions, 3200 amp rating plug. Used electrically OK.
SKU: AKR-7D-75 EMSCO#22107

AKR-7D-75 GE AIR BREAKER 3200A FRAME 600V MO/DO RMS-9 LS

General Electric AKR-7D-75H low voltage power circuit breaker; 3200 amp frame, 600 volt AC. Manually operated, draw-out, RMS-9 trip with LS functions, 3200 amp rating plug. Used electrically OK.
SKU: AKR-7D-75 EMSCO#22108

DMB50 Federal Noark 1600A Frame/300A Rated 600V MO/DO Air Breaker

Federal Noark DMB50 air circuit breaker; 1600 amp frame, 300 amp trip, dual magnetic over current trip 50L1, 600 volt. Manually operated, draw-out, Used electrically OK ***Breaker has Broken Front Fiberboard*** See last picture. Used electrically OK.
SKU: DMB50 EMSCO #20300

DS632 Square D 3200A Frame/ 3200A Sensors Air Breaker MO/DO LSG

Square D DS-632 low voltage AC power circuit breaker; 3200 amp frame, 3200 amp sensors, 600 volt. Manually operated, draw-out, Digitrip RMS500 trip unit #T55BLSG (LSG functions), #PD6D32A320 (3200 amp rating plug). Used electrically OK.
SKU: DS632 EMSCO #20881

DS632 Square D Air Breaker 3200A 600V MO/DO LSG

Square D DS-632 low voltage AC power circuit breaker; 3200 amp, 600 volts. Manually operated, draw-out, Digitrip RMS with LSG functions. Used electrically OK.
SKU: DS632-MO-DO-LSG-#21940

DS-632 WESTINGHOUSE 3200A 635V Air Circuit Breaker MO/DO LSIG

Westinghouse DS-632 low voltage AC power circuit breaker; type DS, 3200 amp frame, 635 volt max. Amptector I with LSIG functions, Manually operated, draw-out. Sold used as-is.
SKU: DS632 EMSCO# 20208

DS632 WESTINGHOUSE 3200A 635V LSG AIR BREAKER

Westinghouse DS-632 low voltage AC power circuit breaker; 3200 amp frame, 635 volt max, Ampector I-A with LSG functions, manually operated, draw-out. Sold used as is.
SKU: DS632 EMSCO#20265

DS-632 Westinghouse Air Breaker 3200A 600V MO/FM LSIG

Westinghouse DS-632 low voltage AC power circuit breaker; 3200 amp, 600 volt. Manually operated, fixed mount, Amptector I Model A with LSIG functions. Used electrically OK.
SKU: DS-632-MO-FM-LSIG-#22375

DS-632 Westinghouse Air Breaker 3200A 600V MO/FM LSIG

Westinghouse DS-632 low voltage AC power circuit breaker; 3200 amp, 600 volt. Manually operated, fixed mount, Amptector I Model A with LSIG functions. Used electrically OK.
SKU: DS-632-MO-FM-LSIG-#22376

DS-632 Westinghouse Air Breaker 3200A Frame 2400A Cont. Current 600V MO/FM LSIG

Westinghouse DS-632 low voltage AC power circuit breaker; 3200 amp frame, 2400 amp, continuous current, 600 volt. Manually operated, fixed mount, Amptector I A Model with LSIG functions. Used electrically OK.
SKU: DS-632-MO-FM-#22999

RL-3200 Siemens Air Breaker 3200A 600V MO/DO LSG

Siemens RL-3200 Air Breaker; 3200 amp, 600 volt. Manually operated, draw-out, Siemens Static Trip III with LSG functions. Used electrically OK.
SKU: RL-3200-MO-DO-LSG-#22349

RL-3200 Siemens 3200A 600V Air Breaker MO/DO LSIG

Siemens RL-3200 Low Voltage Power Circuit Breaker; 3200 amp frame, 600 volt. Static Trip III with LSIG functions. Manually operated, draw-out, 3200 amp CT with cell. Used electrically OK.
SKU: RL3200 EMSCO# 21390

RL-3200 Siemens-Allis 3200A 600V Air Breaker MO/DO LSIG

Siemens-Allis RL-3200 Type RL Low Voltage Power Circuit Breaker; 3200 amp frame, 600 volt. Static Trip II TYPE TSG (3T) LSIG functions. Manually operated, draw-out. 3200/1 CT's. Used Electrically OK.
SKU: RL3200 EMSCO# 20532

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.