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.

K-600 ITE Air Breaker 600V 600A MO/DO LI Black

ITE K-600 Low Voltage Power Circuit Breaker; 600 amps, 600 volts, black back plate. Manually operated, draw-out, OD-3 trip with LI functions. Used electrically OK.
SKU: K-600-MO-DO-Black-#22950
$1,000.00

K-600 ITE Air Breaker 600V 600A MO/DO LI Black

ITE K-600 Low Voltage Power Circuit Breaker; 600 amps, 600 volts, black back plate. Manually operated, draw-out, OD-3 trip with LI functions. Used electrically OK.
SKU: K-600-MO-DO-Black-#22952
$1,000.00

K-800-S ITE 800A 600V Air Circuit Breaker EO/DO LSIG

ITE K-800 S Power Circuit Breaker; 800 amp frame, red insulators, power shield solid state trip, type SS5G with LSIG functions, 800 amp rated. Electrically operated, draw-out, 115/120 volt AC. Sold Used Electrically OK.
SKU: K800S EMSCO#20388
$1,750.00

KB 225A 600V ITE MO/DO Air Breaker LI

ITE KB 225 air circuit breaker; 225 amp frame. Manually operated, draw-out, solid state trip, type SS with L-I functions. Sold Used As Is.
SKU: KB225 EMSCO#21408
$1,200.00

KB 225A 600V ITE MO/DO Air Breaker LI

ITE KB 225 Air circuit Breaker; 225 amp frame. Manually operated, draw-out, solid state trip, type SS with LI functions. Sold Used As Is.
SKU: KB225 EMSCO#21409
$1,200.00

KC ITE 1600A FRAME/ 400A CONT. CURRENT 600V Air Breaker MO/DO

ITE Type KC Air Circuit Breaker; 1600 amp frame, 400 amp cont. current, 600 volt. Manually operated, draw-out, carrier FB600E static trip relay. Used E-OK.
SKU: KC EMSCO #20918
$2,000.00

KC ITE 1600A FRAME/ 400A CONT. CURRENT 600V Air Breaker MO/DO

ITE Type KC Air Circuit Breaker; 1600 amp frame, 400 amp cont. current, 600 volt. Manually operated, draw-out, carrier FB600E static trip relay. Used Electrically OK
SKU: KC EMSCO #20919
$2,000.00

KC ITE 1600A Frame/ 600 Amp Cont. Current 600V Air Breaker MO/DO

ITE Type KC Air Circuit Breaker; 1600 amp frame, 600 amp cont. current, 600 volt, manually operated, draw-out. Used electrically OK.
SKU: KC EMSCO #20924
$2,000.00

KC ITE 1600A Frame/ 800A Cont. Current 600V Air Breaker MO/DO

ITE Type KC Air Circuit Breaker; 1600 amp frame, 600 volt, 800 amp cont. current. Manually operated, draw-out, carrier FB600E static trip relay. Used electrically OK.
SKU: KC EMSCO #20920
$2,000.00

KC ITE 1600A Frame/ 800A Rating Plug 600V MO/DO Air Breaker LSIG

ITE Type KC Air Circuit breaker; 1600 amp frame, 600 volt. Manually operated, draw-out, digitrip RMS810 trip unit, #S86LSIG (LSIG functions), #RP6A08A080 (800 amp rating plug), 800 amp sensors. Used electrically OK.
SKU: KC EMSCO #20917
$3,000.00

KC ITE 1600A Frame/ 800A Rating Plug 600V MO/DO Air Breaker LSIG

ITE Type KC Air Circuit Breaker; 1600 amp frame, 600 volt. Manually operated, draw-out, Westinghouse digitrip RMS810, trip unit #S86LSIG (LSIG functions), #RP6A08A080 (800 amp rating plug), 800 amp sensors. Used electrically OK.
SKU: KC EMSCO #20921
$3,000.00

KC ITE 1600A Frame/ 800A Rating Plug 600V MO/DO Air Breaker LSIG

ITE Type KC Air Circuit Breaker; 1600 amp frame, 600 volt. Manually operated, draw-out. Westinghouse digitrip RMS810 trip unit, #S86LSIG (LSIG functions), #RP6A08A080 (800 amp rating plug), 800 amp sensors. Used electrically OK.
SKU: KC EMSCO #20923
$3,000.00

KC ITE 1600A Frame/ 800A Rating Plug 600V MO/DO LSIG

ITE Type KC Air Circuit Breaker; 1600 amp frame, 600 volt. Manually operated, draw-out, Westinghouse digitrip RMS810 trip unit #S86LSIG (LSIG functions) #RP6A08A080 (800 amp rating plug), 800 amp sensors. Used electrically OK.
SKU: KC EMSCO #20922
$3,000.00

KD-A ITE Air Breaker 3000A 600V EO/DO LI

ITE KD-A Air Breaker; 3000 amp, 600 volt. Electrically operated, draw-out, Siemens Limi-trip, type: LTI with LI functions. Used electrically OK.
SKU: KD-A-EO-DO-LI-#23004
$4,500.00

KD-A ITE Air Breaker 3000A 600V MO/DO LI

ITE KD-A Air Breaker; 3000 amp, 600 volt. Manually operated, draw-out, dual over-current trip 3000 amp with LI functions. Used electrically OK.
SKU: KD-A-MO-DO-LI-#22340
$4,500.00

KD-A ITE Air Breaker 3000A 600V MO/DO LIG

ITE KD-A Air Breaker; 3000 amp, 600 volt. Manually operated, draw-out, solid state trip, type SS with LIG functions. Used electrically OK.
SKU: KD-A-MO-DO-LIG-#22396
$4,500.00

KD-A-3000 ITE 3000A 600V AIr Circuit Breaker EO/DO

ITE KD-A-3000 Air Circuit Breaker; 3000 amp frame, 2000 amp trip. Electrically operated, draw-out, type 230 volt control relay, 230 volt closing solenoid. Sold Used Electrically OK.
SKU: KDA3000 EMSCO#21028
$6,500.00

K-DON 1600S ITE/BBC 1600A 600V EO/ST Air Breaker LSI

ITE/BBC K-Don 1600S Fused Power Circuit Breaker; 1600 amp, 600 volt. Electrically-operated, Stationary, Digitrip 510: L-S-I functions. Used Electrically OK.
SKU: K-DON1600S EMSCO#20950
$5,500.00

K-DON 1600S ABB 1600A 600V Fused Air Circuit Breaker EO/DO LSG

ABB K-Don 1600S Fused Power Circuit Breaker; 1600 amp frame, 600 volt, 1600 amp sensors. Gould A4BY2000, 2000 amp fuses power shield solid state trip, type SS4G with LSG functions. Ground fault intentionally defeated, electrically operated, draw-out, 115 volt DC, red insulators. Used Electrically OK.
SKU: K-DON1600S #20389
$3,500.00

K-DON 1600S ITE 1600A/1600A 600V Red MO/DO Air Breaker LSI

ITE K-Don 1600S power circuit breaker; 1600 amp, 600 volt, 1600 amp CT, red insulator. Manually operated, draw-out, Digi-Trip RMS with LSI functions, 1600 amp rating plug. Sold Used As Is.
SKU: KDON1600S EMSCO #20989
$1,500.00

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.