My Account

Shopping cart

Personal menu

Preferences

12kV Vacuum Circuit Breaker, 1250A, 2000A

5 out of 5 based on 3 reviews | Write a review

$3,094.05

12kv vacuum circuit breaker at affordable price for sale online. Rated short circuit breaking current about 20kA, 40kA and 50kA. It is suitable for indoor use. Compact design enables the 12kv circuit breaker to be installed within almost all switchgears.

Rated Current and Rated Short Circuit Breaking Current *
Operating Voltage *

SKU: ATO-VCB-12A

Qty:

30-day Returns

Delivery date: 6-12 days

Overview
Related Video

Vacuum circuit breaker with 12kv rated voltage, mechanical life about 20000 times. 12kv vacuum circuit breaker adopts the composite insulation structure, with high insulation grade, no pollution and no explosion danger.

Features:

12kV vcb with Ideal contact material and shape, ensuring low current carrying value and stable contact resistance.
Integrated design of main conductive circuit made of compound isolation material and operating mechanism.
Few components and parts, compact and logical structure, assuring more reliable and safer operation.
Vacuum circuit breaker adopts the composite insulation structure, with high insulation level, no pollution or explosion danger.
Compact design enables the breaker to be installed within almost all switchgears.
Superior cost performance, 12kV vacuum circuit breaker is the ideal choice for engineering programs.

Specification: (Parameters can be customized)

Model	ATO-VCB-12A
Rated voltage	12 kV
Maximum operating voltage	12 kV
Rated current	630A/1000A/1250A	1250A/1600A/2000A/2500A
Rated short circuit breaking current	20kA/25kA	31.5kA
Rated short circuit closing current	50kA/63kA	80kA
Rated peak withstand current	50kA/63kA	80kA
4S Rated short-time withstand current	20kA/25kA	31.5kA
Rated insulation level	power frequency withstand voltage (rated open circuit before and later): 42 kV
	impulse withstand voltage (rated open circuit before and later): 75 kV
Mechanical life	20000 times
Rated closing voltage of operating mechanism (DC)	110 V, 220 V
Rated switching voltage of operating mechanism (DC)	110 V, 220 V
Contactor torque	11±1
Exceed range(the compress length of contact spring)	4±0.5
Max.bouncing duration	≤ 2
Average opening speed	≤ 0.05
Average closing speed	≤ 0.08
Opening time	≤ 50
Closing time	≤ 100
Accumulative allowable wear thickness of dynamic and static contacts	3 mm
Certification	CE
Warranty	12 months

Dimensions: (Unit: mm)

Schematic Diagram:

Details

Tips: Advantages of Vacuum Circuit Breaker

Vacuum circuit breaker is a self-contained and does not require filling of oil or gas. They do not need auxiliary air system, oil handling system etc. No need of periodic refilling.
Rapid recovery of very high dielectric strength on current interruption so that only half cycle or less arcing occurs after proper contact separation.
Current interruption occurs at the first current zero after contact separation with no re-striking, making it exceptionally good for capacitor and cable switching and long line dropping.
Very high power frequency and impulse withstand voltages with small contact spacing, allowing ease of actuation and timing.
Constant contact resistance. In vacuum the contacts cannot oxidise, therefore, their very small resistance is maintained throughout their life.

Types of Circuit Breakers

In this video, we'll take a closer look at the meaning behind these abbreviations and explain the types of circuit breakers they represent. By understanding the different types of circuit breakers on the market, you can make an informed decision and choose the right type for your specific requirements, thereby enhancing the protection of your electrical infrastructure.

Isolator vs Circuit Breaker

Although isolators and circuit breakers have similar functions in a circuit, they are two separate entities. This video explains you the difference between the two devices in terms of working, features, operation, affordability, etc. You can choose between them based on your specific requirements.

Essential Electronic Components in Electrical Systems

Welcome back to the ATO Channel, you go-to source for electrical and industrial automation insights.

Relays vs Circuit Breakers: What’s the Difference

In this video, we've described the difference between a relay and a circuit breaker as well as explaining their basic working and operation by means of animation. If you find this video helpful, please LIKE it and SHARE with your friends. Don't forget to check out the purchase links above if any featured items're of your interest.

Existing reviews of 12kV Vacuum Circuit Breaker, 1250A, 2000A

Works perfectly

I have bought this 12 kV vacuum circuit breaker for 7 months. This vacuum circuit breaker has been working perfectly in the factory. I will order more and recommend to my friends!

From: Matte | Date: 13/12/2022

Was this review helpful? Yes No (0/0)

Glad to have this 12 kV vacuum circuit breaker

This vacuum circuit breaker works very well. I'm very pleased with it. And most importantly, I was very happy to receive the vcb breaker in the expected time. I would purchase this product again.

From: Johanes | Date: 30/11/2022

Was this review helpful? Yes No (0/0)

Good 12kV vacuum circuit breaker

The price of this 12 kV vacuum circuit breaker is affordable. I used it for almost half a month. So far without any problems. I would highly recommend this breaker to anyone.

From: Frederick | Date: 25/03/2022

Was this review helpful? Yes No (0/0)

Write your review for 12kV Vacuum Circuit Breaker, 1250A, 2000A