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.

15-GHK-500 ABB 15KV 1200A Air Circuit Breaker EO/DO

ABB 15-GHK-500 air circuit breaker; 1200 amp, 15 KV rated, three pole. Electrically operated, draw-out, close: 240 VAC, charge: 240 VAC, trip: 250 VDC, date: 08/89. Sold used as-is.
SKU: 15GHK500-EMSCO#19615
$8,500.00

15GHK500 ABB 15KV 1200A EO/DO Air Circuit Breaker

ABB 15GHK500 Power circuit breaker; rated KV: 13.8, max KV: 15, impulse KV: 125, frequency: 60 rated, continuous current: 1200, K-Factor: 1.3 rated, Sym. short-circuit KA: 19.2, asymmetrical rating factor: 1.2. Electrically operated, draw-out, control voltage: charge: 240 VAC, close: 240 VAC, trip: 250 VDC, rated interr. time 3 cycles. Sold used as-is.
SKU: 15GHK500#19620
$8,500.00

15-GHK-500 ABB 15KV 1200A EO/DO Air Circuit Breaker

ABB 15-GHK-500 air circuit breaker; 1200 amp, 15 KV rated, three pole. Electrically operated, draw-out, close: 240 VAC, charge: 240 VAC, trip: 250 VDC, date: 08/89. Sold used as-is.
SKU: 15GHK500-EMSCO#19616
$8,500.00

15-GHK-500 ABB 15KV 1200A EO/DO Air Circuit Breaker

ABB 15-GHK-500 air circuit breaker; 1200 amp, 15 KV rated, three-pole. Electrically operated, draw-out, close: 240 VAC, charge: 240 VAC, trip: 250 VDC, date: 08/89. Sold used as-is.
SKU: 15GHK500-EMSCO#19617
$8,500.00

15-GHK-500 ABB 15KV 1200A EO/DO Air Circuit Breaker

ABB 15-GHK-500 air circuit breaker; 1200 amp, 15 KV rated, three pole. Electrically operated, draw-out, close: 240 VAC, charge: 240 VAC, trip: 250 VDC, date: 08/89. Sold used as-is.
SKU: 15GHK500-EMSCO#19618
$8,500.00

15GHK500 ABB/ITE 15KV 1200A EO/DO Air Circuit Breaker

ABB / ITE 15GHK500 Power Circuit Breaker; rated KV: 13.8, max KV: 15, impulse KV: 125, frequency: 60, rated continuous current: 1200, K-Factor: 1.3 rated Sym. short-circuit KA: 19.2, asymmetrical rating factor: 1.2. Electrically operated, draw-out, control voltage: charge: 240 VAC, close: 240 VAC, trip: 250 VDC, rated Interr. time 3 cycles. Sold used as-is.
SKU: 15GHK500 #19619
$8,500.00

5-GMI-250-2000-58 Siemens 2000A 5KV AC High Voltage Air Circuit Breaker EO/DO

Siemens 5-GMI-250-2000-58 AC high voltage circuit breaker; rated max. volts: 4.76 kV, volt range factor: 1.24K Bil. kV, 60 rated short circuit kA: 29, close latch kA 58, interrupting time: 5 cycles. Electrically operated, motor: 100-140 VDC, 2.5 amps. nominal close: 100-140 VDC, 3.8 amps. nominal trip: 70-140 VDC, 3.8 amps. nominal draw-out, used electrically OK.
SKU: 5-GMI-250-2000-58 #20693
$14,000.00

5-GMI-350-3000-78 Siemens 3000A 5KV AC High Voltage Air Circuit Breaker EO/DO New Surplus

Siemens Part # 5-GMI-350-3000-78 GMI AC high voltage circuit breaker; 5 KV max, 3000 amp. Electrically operated, draw-out, 100-140 VDC control voltage, MFG date 02/2009. New Surplus
SKU: 5-GMI-350-3000-78 EMSCO #20935
$50,000.00

5HK ABB 5KV 1200A EO/DO Air Circuit Breaker

ABB 5HK air circuit breaker; 1200 amp, 5 KV rated, three pole, control: 48 volt DC, electronically operated, draw-out. Sold used as-is.
SKU: 5HK - EMSCO # 19579
$4,500.00

5HK ABB 5KV 1200A EO/DO Air Circuit Breaker

ABB 5HK air circuit breaker; 1200 amp, 5 KV rated, three pole, control: 48 Volt DC, electrically operated, draw-out. Sold used as-is.
SKU: 5HK - EMSCO # 19580
$4,500.00

ABB 6 Terminal Simple Ground & Test Unit 3000A 5-15KV

ABB 6 Terminal Simple Ground & Test Unit; 3000 amp, 5-15 KV #23127, 3000 amps, 5-15 KV. Electrically operated, draw-out, serial# 1VAFACB48106004G09. Sold used electrically OK.
SKU: ABB-G&T-#23127
$5,000.00

AM5-100 ABB 5KV CONVERSION EO/DO Air Circuit Breaker

ABB AM5-100 Vacuum circuit breaker; 5 HK, 1200 amp, 5 KV rated, three pole. Charge: 125 VDC, close: 125 VDC, electrically operated/draw-out, date: 09/99. Sold used as-is.
SKU: AM5-100 EMSCO#19593
$7,500.00

AM5-100 ABB 5KV CONVERSION EO/DO Air Circuit Breaker

ABB AM5-100 vacuum circuit breaker; 5 HK, 1200 amp, 5 KV rated, three pole. Charge: 125 VDC, close: 125 VDC, electrically operated, draw-out, date: 09/99. Sold used as-is.
SKU: AM5-100 EMSCO#19594
$7,500.00

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

ABB K-1600S Power Circuit Breaker; 1600 amp frame, 1600 amp rated. Electrically operated, draw-out, 115 volt DC control, micro power-shield MPS-C-4G with LSG functions, red insulators. Used Electrically OK.
SKU: K1600S #20993
$2,500.00

K1600S ABB 1600A/1600A 600V Red MO/DO Air Breaker LI

ABB K1600S Power Circuit breaker; 1600 amp, 1600 amp CT. Red insulator, manually operated, draw-out, ABB type SS trip unit - solid state with LI functions. Sold Used As Is.
SKU: K1600S EMSCO #20990
$1,500.00

K1600S ABB 1600A/1600A 600V Red MO/DO Air Breaker LI

ABB K1600S Power Circuit Breaker; 1600 Amp, 1600 Amp CT. Red Insulator, Manually operated/ draw-out, ABB Type SS Trip Unit - Solid State with LI Functions. Sold Used As Is.
SKU: K1600S EMSCO #20991
$1,500.00

K1600S Gould 1600A 480V MO/DO Circuit Breaker LIG

Gould K1600S Power Circuit Breaker; 1600 amp, 480 volt, 3 pole. Manually operated, draw-out with L-I-G functions. Sold used As-Is.
SKU: K1600S - EMSCO #19651
$2,500.00

K-1600S Gould/ITE Air Breaker 600V 1600A MO/DO LIG RED

Gould/ITE K-1600S Power Circuit Breaker; 1600 amps, 600 volts, red back plate. Manually operated, draw-out, solid state trip, type SS with LIG functions. Used electrically OK.
SKU: K-1600S-MO-DO-LIG-#23045
$2,000.00

K-1600S Gould/ITE Air Breaker 600V 1600A MO/DO LIG RED

Gould/ITE K-1600S Power Circuit Breaker; 1600 amps, 600 volts, red back plate. Manually operated, draw-out, solid state trip, type SS with LIG functions. Used electrically OK.
SKU: K-1600S-MO-DO-LIG-#23046
$2,000.00

K-1600S ITE 1600A 600V Air Circuit Breaker MO/DO LI

ITE K-1600S Power Circuit Breaker; 1600 amp frame, 1600 amp sensors. Manually operated, draw-out, power shield solid state trip, type SS3 with LI functions, red insulators. Used Electrically OK.
SKU: K1600S #20391
$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.