The ZN63IVS1)-12 indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz switchgear with a rated voltage of 7.2kV. It serves as a protective and control unit for power equipment in power grid installations and industrial enterprises. The circuit breaker adopts an integrated design, capable of functioning as a fixed installation unit or being mounted on a chassis to form a mobile unit.
This circuit breaker complies with the requirements of GB1984 "AC High Voltage Circuit Breakers," JB3855-1996 "3.6-40.5kV Indoor AC High Voltage Vacuum Circuit Breakers," and DJ403-91 "10-35kV Indoor AC High Voltage Circuit Breaker Technical Conditions for Ordering" as well as relevant provisions of IEC5687 publications.
Using the environment conditions
Ambient air humidity: cap + 40 ° ℃, lower limit - 15 ° ℃
* height: < 1000 m (if need higher elevation, the rated insulation level increase)
Amplitude: the earthquake intensity is not more than 8 degrees
Air relative humidity, average no greater than 95%, on average no greater than 90%
No fire and explosion danger, serious pollution, chemical corrosion and the site of violent vibration.
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| Rated short circuit breaking current | | |
| Rated short circuit making current | | |
| Rated peak withstand current | | |
| 4S Rated withstand current | | |
| | Power frequency voltage(when losing a circuit) | | |
Impulse withstand voltage(when losing a circuit) | |
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| Rated short circuit current breaking time | | |
| Rated close brake voltage of operating machnie | | |
| Rated break brake voltage of operating machnie | | |
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| Exceed range(the compress length of contact sping) | | |
| Different period of three-phase break and close break | | |
| The jump time of contact close break | | |
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| | Ubder max.operating voltage | | |
Under min.operating voltage | |
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| Resistance of each phase main loop | | |
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Installation dimensions
Packing details
by strong wood box
OEM can be customized as required on the box.
Buy Guide
1.Determine the rated voltage
2.Determine breaking capacity
3.Determine the rated current
4.Determine the installation method (A: handcart type B: fixed type)
5.Determine installation size
Production Workshop
Welcome to visit the factory for guidance at any time.
About Us
Hebei Liebang Electric Technology Co. LTD was established in 2000, located in Hebei, China, covering an area of 20,000 square meters, is a group integrating R&D, manufacturing, sales and service. Our products cover many fields such as transformers, switch cabinets, electricity meters, wires and cables, and are widely used in construction, energy, communication and other industries.The company has its own technology research and development team. All products can be individually designed according to structural, mechanical and electrical principles. With advanced production equipment, testing equipment, production line and computer network control system, it is a leading domestic power equipment manufacturer in terms of product production, component selection and assembly. It has also passed ISO9001, ISO14001, ISO45001, CQC, test report and other quality system certifications, and the credit rating AAA certificate.We sincerely invite you to visit our factory for guidance and negotiation, and to explore potential cooperation opportunities.
