ZN63(VS1)-40.5 indoor AC high-voltage vacuum circuit breaker

This vacuum circuit breaker is designed for 40.5kV, 50Hz indoor switchgear. As a key protection and control component, it is ideal for frequent operations in power plants, substations, and industrial plants.

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ZN63(VS1)-40.5 indoor AC high-voltage vacuum circuit breaker

Vacuum Circuit Breaker 

Product descriptions

ZN63(VS1)-40.5 indoor AC high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is suitable for three-phase AC 50Hz,40.5kV indoor handcart switchgear, and can be used as protection and control for industrial and mining enterprises, power plants and substations. Equipment, and suitable for places with frequent operations.

The performance of this product conforms to the national standard GB1984-2003″AC High Voltage Circuit Breaker”, JB3855″3.6-40.5KV Indoor AC High Voltage Vacuum Circuit Breaker”,GB/T11022-1999″Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards” and IEC62271-100 and other standards.

Technical parameters

No. ltem Unit Data
1 Rated voltage KV 40.5
2 Rated current A 1250 1600 2000   2500
3 Rated short circuit breaking current KA 25 31.5 25 31.5
4 Rated dynamic stability current (peak) KA 63 80 63 80
5 4S thermal stability current KA 25 31.5 25 31.5
6 Rated short circuit closing current (peak) KA 63 80 63 80
7 Rated short circuit current breaking time Times 20
8 Rated operating sequence   O-0.3s-CO-180s-CO
9 Rated insulation level 1 min power frequency withstand voltage KV 95
10   Lightning impulse withstand voltage(peak) Times 185
  Mechanical life Times 10000
11 Rated single capacitor bank opening and closing current A 630
12 Rated back-to-back capacitor bank current A 400
13 Rated voltage of energy storage motor V AC/DC: 110; 220
14 Rated power of energy storage motor W ≤230
15 Energy storage time of energy storage motor S ≤15
16 Rated voltage of opening and closing coil V DC:110; 220
17 Rated current of opening and closing coil A 1.05(110V)  0.96(220V)
18 Contact stroke mm 20±2
19 Contact contact stroke mm 7.5±1.5
20 Three-phase opening,closing phase asynchronous ms ≤2
21 Contact closing bounce time ms ≤3
22 The main circuit resistance (not include the contact arm) μΩ ≤40

Drawing

zn63(vs1) 40.5 indoor ac high voltage vacuum circuit breaker

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Technical Support & FAQs

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

Why Choose Us

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Technical Support

From pre-sales consultation to after-sales service, we offer end-to-end technical support to maximize your project success. Our experts assist with product selection, system integration, troubleshooting, and maintenance, backed by continuous project tracking to keep your operations smooth and efficient.

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Customized Solutions

We specialize in tailor-made solutions for switchgear and components, designed to fit your unique requirements. Our team collaborates closely with you to develop products optimized for performance, efficiency, and reliability—ensuring they excel in your specific application.

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Quality Control

Quality is embedded at every stage. We rigorously test all materials prior to production and monitor manufacturing processes to ensure product stability. Before shipment, each unit undergoes comprehensive electrical, mechanical, and safety performance tests to comply with industry standards.

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Quick Response

Our experienced service team provides 24/7 support year-round. Thanks to streamlined processes and a dedicated staff, we deliver 90% of quotations within 24 hours.

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