Wholesale VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker Suppliers, Supplier
Wholesale VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker Suppliers, Supplier
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Wholesale VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker Suppliers, Supplier
Wholesale VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker Suppliers, Supplier

Wholesale VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker Suppliers, Supplier

The VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker offers reliable circuit protection for 24kV power systems. Designed for side-mounted installation, this VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker features a 1600A rated current, high breaking capacity, and robust performance in diverse conditions. It operates reliably in temperatures from -15°C to +40°C, at altitudes up to 2000m, and in high humidity environments. Ideal for industrial and grid applications, the VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker ensures safety with minimal maintenance.

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Product Description

Type Designation

VS1-12C Type Designation Breakdown
Position Designation Description
1 Vacuum Circuit Breaker (VCB)
2 Design Number
3 Rated Voltage (kV)
4 Side-mounted
5 Rated Current (A)
6 Rated Short-circuit Breaking Current (kA)

Normal Use Environment

  • Ambient air temperature: Upper limit +40°C, lower limit -15°C.
  • Daily average relative humidity of air: Not more than 95%; monthly average not more than 90%.
  • Altitude: ≤ 2000m.
  • Seismic intensity: Not exceeding 8 degrees.
  • Installation conditions: Locations without fire, explosion hazard, severe pollution, chemical corrosion, and violent vibration.
Note: If clients have any special requirements, they may propose them when placing orders, and we will do our utmost to meet their needs.

Product Display

VS1-12C Indoor HV Vacuum Circuit Breaker - Front View
VS1-12C Indoor HV Vacuum Circuit Breaker - Side View

Technical Parameters

Item Unit Parameter Values
Rated Voltage kV 12
Maximum Operating Voltage kV 12
Rated Current A 630 1250 1600
Rated Short-Circuit Breaking Current kA 20 25 31.5
Rated Short-Circuit Making Current kA 50 63 80
Rated Peak Withstand Current kA 50 63 80
4S Rated Short-Time Withstand Current kA 20 25 31.5
Rated Operating Sequence - O - 0.3s - CO - 180s - CO
Rated Insulation Level Power-Frequency Withstand Voltage (Before/After Rated Breaking) kV 42 (Section 48)
Impulse Withstand Voltage (Before/After Rated Breaking) kV 75 (Section 85)
Mechanical Life Operations 10,000
Rated Short-Circuit Current Breaking Operations Operations 50
Operating Mechanism Rated Closing Voltage (DC) V 110 / 220
Operating Mechanism Rated Opening Voltage (DC) V 110 / 220
Contact Gap mm 11 ± 1
Over-Travel (Contact Spring Compression Length) mm 4.5 ± 0.5
Three-Phase Contact Bounce Time (During Opening/Closing) ms ≤ 2
Contact Bounce Time During Closing ms ≤ 2
Average Opening Speed m/s 0.9 ± 1.2
Average Closing Speed m/s 0.4 ± 0.8
Opening Time At Maximum Operating Voltage s ≤ 0.05
At Minimum Operating Voltage s ≤ 0.08
Closing Time s 0.1
Resistance of Each Main Circuit μΩ 60 50

Outline and Installation Dimensions

VS1-12C Mechanical Outline and Installation Dimensions

Frequently Asked Questions (FAQ)

What is the rated voltage and current capacity for this model?

The VS1-12C is designed for a rated voltage of 12kV (with maximum operating voltage of 12kV) and supports rated current specifications of 630A, 1250A, and 1600A.

What is the mechanical and breaking lifespan of this vacuum circuit breaker?

The device offers a mechanical endurance of up to 10,000 operations, and can perform up to 50 operations at the full rated short-circuit breaking current.

What are the ambient temperature and environmental operational requirements?

It operates effectively within an ambient temperature range of -15°C to +40°C, at altitudes up to 2000m, and under seismic intensity up to 8 degrees in environments free of fire, chemical corrosion, or violent vibration.

What control voltage does the operating mechanism support?

The operating mechanism supports both DC 110V and DC 220V for closing and opening voltage operations.

What is the rated short-circuit breaking capability?

Depending on the exact specification ordered, the rated short-circuit breaking current reaches 20kA, 25kA, or 31.5kA, with peak withstand ratings up to 80kA.

Can custom specifications be requested for special installation scenarios?

Yes. If clients possess special structural, altitude, or environmental requirements, custom parameters can be proposed upon ordering to tailor the configuration.

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