24kV Side Mounted Vacuum Circuit Breaker

The product model of the 24KV side mounted vacuum circuit breaker is ZN63A (VS1)-24. It is used in three phase AC 50Hz power systems with a rated voltage of 24kV. Its core feature is the integrated design of the operating mechanism and the circuit breaker body. It can be fixedly installed or used as a withdrawable unit with a trolley mechanism. It can be applied to various types of loads and frequent operation occasions, and can be used for the protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations, and is particularly suitable for the metallurgical, chemical, and coal industries.

Appearance diagram

Dimensions diagram

Technical Parameters

1—Rated short circuit breaking current(KA )

2—Rated current(A)

3—Ejection mechanism

4—Rated voltage(KV)

5—Design number

6—Indoor vacuum circuit breaker

Structural Features

1. 24kV Side Mounted Vacuum Circuit Breaker uses a center-sealed ceramic or glass vacuum interrupter, featuring copper-chromium contact material and a cup-shaped longitudinal magnetic field contact structure, resulting in a low electrical wear rate, long electrical life, high contact withstand voltage, stable dielectric insulation strength, fast arc extinction recovery speed, low current chopping level, and strong breaking capacity.

2. It adopts a horizontally arranged spring-energy storage operating mechanism with both manual and electric energy storage functions.  

3. It uses a three-phase pillar structure. The three-phase pillars and current transformers use imported outdoor epoxy resin solid insulation, or indoor epoxy resin coated with silicone rubber solid insulation, featuring resistance to high and low temperatures, UV radiation, and aging, as well as good moisture and condensation resistance.

Operating Environment

1. Ambient air temperature: -15℃ to 40℃

2. Altitude: Not exceeding 1000m (If a higher altitude is required, the rated insulation level should be increased accordingly).

3. Seismic intensity: Not exceeding 8 degrees.

4. Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%.

5. 24kV Side Mounted Vacuum Circuit Breaker is suitable for locations free from fire, explosion hazards, severe pollution, chemical corrosion, and violent vibrations.