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.

FPS5-50 FPE 1600A Frame 600V Air Circuit Breaker MO/DO LSIG

Federal Pacific FPS5-50 Low Voltage Power Circuit Breaker; 1600 amp, 50/60 frame, 1600A C.T. Manually operated, draw-out, FPE over current rely, type SSD with LSIG functions * 1 Broken Terminal Strip. Used electrically OK.
SKU: FPS5-50 #20421
$3,500.00

FPS5-50 FPE 1600A Frame 600V Air Circuit Breaker MO/DO LSIG

Federal Pacific FPS5-50 Low Voltage Power Circuit Breaker; 1600 amp, 50/60 frame, 1600 amp C.T. Manually operated, draw-out, A.C pro trip unit with LSIG functions. Used electrically OK.
SKU: FPS5-50 #20422
$3,500.00

FPS5-50 FPE 1600A Frame 600V MO/DO Air Breaker LSIG

Federal Pacific FPS5-50 Low Voltage Power Circuit Breaker; 1600 amp, 50/60 frame, 1600 amp C.T. Manually operated, draw-out, FPE over current rely, type SSD with LSIG functions. Used Electrically OK.
SKU: FPS5-50 #20415
$3,500.00

G-25 Allis-Chalmers Air Breaker 600V 200A MO/DO LSIG

Allis-Chalmers G-25 Air Circuit Breaker; 200 amps, 600 volts. Manually operated, draw-out, FB600E static trip with LSIG functions. Used electrically OK.
SKU: G-25-MO-DO-#22854
$1,200.00

G-25 Allis-Chalmers Air Breaker 600V 200A MO/DO LSIG

Allis-Chalmers G-25 Air Circuit Breaker; 200 amps, 600 volts. Manually operated, draw-out, FB600E static trip with LSIG functions. Used electrically OK.
SKU: G-25-MO-DO-#22859
$1,200.00

G-25 Allis-Chalmers Air Breaker 600V 200A MO/DO LSIG

Allis-Chalmers G-25 Air Circuit Breaker; 200 amps, 600 volts. Manually operated, draw-out, FB600E static trip with LSIG functions. Used electrically OK.
SKU: G-25-MO-DO-#22862
$1,200.00

G-25 Allis-Chalmers Air Breaker 600V 400A MO/DO LSIG

Allis-Chalmers G-25 Air Circuit Breaker; 600 volt, 400 amp. Manually operated, draw-out, FB600E static trip with LSIG functions. Used electrically OK.
SKU: G-25-MO-DO-#22853
$1,200.00

G-50A Allis-Chalmers Air Breaker 600V 300A MO/DO LSIG

Allis-Chalmers G-50A Air Circuit Breaker; 300 amps, 600 volts. Manually operated, draw-out, FB600E RMS trip with LSIG functions* No Handle*. Used electrically OK.
SKU: G-50A-MO-DO-#22851
$1,500.00

GE AK2-25-2 600V 600A Air Circuit Breaker MO/Stationary Mount LSI

General Electric AK2-25-2 low voltage power circuit breaker; 600 volt, 600 amp. Manually operated, stationary mount, LSI, EC-1 trip, instantaneous function** Broke Handle** Used electrically OK.
SKU: AK2-25-2 Emsco#22691
$1,000.00

GE AK2-50-3 Air Breaker 600V 1600A Manually Operated/Stationary Mount

General Electric AK2-50-3 low voltage power circuit breaker; 600 volt, 1600 amp. Manually operated/stationary mount, EC-2A trip. Used electrically OK.
SKU: AK2-50-3 Emsco#22686
$2,000.00

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
$1,500.00

GE AK3A-50 Air Breaker 600V 1600A MO/DO LSIG

General Electric AK3A-50 low voltage power circuit breaker; 600 volt, 1600 amp. Manually operated, draw-out, LSIG functions**Broken Handle. Used electrically OK.
SKU: AK3A-50 Emsco#22692
$2,000.00

GE TAK83FCB Fuse Truck for AKR-75 or AKRT-50H Air Breaker

General Electric TAK83FCB Fuse Truck for AKR-75 or AKRT-50H. 4000 amp fuses, AKR-4BY fuses. Sold used electrically OK.
SKU: EMSCO #21168
$7,500.00

GE TAK9SS02FC Fuse Truck for AKR-100 Air Breaker

General Electric TAK9SS02FC Fuse Truck for AKR-100; 5000 amp fuses. A4BY-5000 fuses suitable for fuse roll out only TAK94FCB. Sold used electrically OK.
SKU: EMSCO #22149
$15,000.00

General Electric AKR-6D-50 1600A Frame MO/DO Air Breaker with LI Functions

General Electric AKR-6D-50 low voltage power circuit breaker; 1600 amp frame, 1600 amp sensor current, 600 volt AC. Manually operated, draw-out, Micro Versa Trip TA9VT20, LI functions with fault trip annunciator. Sold used as is.
SKU: AKR-6D-50 #19996
$3,500.00

ITE 1600A Frame / 1600A Sensors 600V Air Circuit Breaker EO/STA LI

ITE K-1600 Power Circuit Breaker; 1600 amp frame, 1600 amp sensors. Electrically operated, stationary, 120 volt AC, direct acting trip, type OD-3 with LI functions, red insulators. Used Electrically OK.
SKU: K-1600 #20412
$2,500.00

ITE Current Limiting Fuse Element 4000A

ITE Current Limiting Fuse Element; 4000 amp frame, 6000 amp fuses, class L fuses. Sold Used Electrically OK.
SKU: EMSCO #21142
$7,500.00

ITE Current Limiting Fuse Element 4000A

ITE Current Limiting Fuse Element; 4000 amp frame, 6000 amp fuses, class L fuses. Sold Used Electrically OK.
SKU: EMSCO #21143
$7,500.00

ITE K-2000S 600V 2000A Air Breaker EO/DO LSI

ITE K-2000S Power Circuit Breaker; 600 volts, 2000 amps. Electric operated, draw-out, 115 volt DC-60 trip, type- SS5 with LSI functions. Used electrically OK.
SKU: K-2000S EMSCO#21906
$3,500.00

ITE Older K-Frame 1600A 600V MO/DO Air Breaker LSIG

ITE Older K-Frame Low Voltage Air Circuit Breaker; 1600 amp, 600 volt. Manually operated, draw-out, trip: Digitrip 810 with L-S-I-G functions, ground fault. Used Electrically OK.
SKU: OLDER K-FRAME #20977
$2,000.00

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.