VS1-12 Indoor Medium Voltage Vacuum Circuit Break | RFQ Sourcing Details
Compact Substations · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Compact Substations. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
VS1 (ZN63A)-12 Indoor High Voltage Vacuum Circuit Breaker (hereinafter referred to as Circuit Breaker) is an indoor switchgear used in 12kV power system, As the protection and control unit of power grid equipment and power equipment of industrial and mining enterprises, it is used as a control and protection unit for cables, overhead lines, distribution stations, and power distribution stations in the power distribution system.
Equipment such as motors, transformers, generators, and capacitors. The VS1 circuit breaker is mainly used to divide short-circuit currents and switch various loads (if on-load or Overhead lines and cables, transformers and generators, motors, harmonic control systems, and even shunt capacitors under no load).
The circuit breaker has excellent performance in applications where frequent operation and/or short-circuit currents need to be interrupted, and it is fully charged It meets the requirements of automatic reclosing and has a high level of operational reliability and service life.
The circuit breaker can be fixed and installed in the switch cabinet, and can also be equipped with a special propulsion mechanism for handcarts to form a handcart type.
Detailed Photos Conditions of normal use a) Ambient temperature Maximum temperature + 40 ºC Maximum temperature (24-hour average) + 35 ºC Minimum temperature - 15 ºC Diurnal temperature differences < 15K b) Humidity Daily average relative humidity ≤ 95% Daily average water vapor pressure ≤ 2.2 × 10 - 3 MPa;Monthly average relative humidity ≤ 90% Average monthly water vapor pressure ≤ 1.8 × 10 - 3 MPa c) Altitude ≤ 1000m d) Seismic intensity No more than 8 degrees e) There is no dripping water, no flammable and explosive hazard, no chemical corrosive gas and no violent vibration in the place of use.
Specification Serial number Projects unit Value 1 Rated voltage kV 12 2 Rated short-time power frequency withstand voltage (1min) 42 / 48 (fracture) 3 Rated lightning impulse withstand voltage (peak) 75 / 85 ( fracture ) 4 Rated frequency Hz 50 5 Current rating A 630 ~ 4000 6 Rated short-circuit interrupting current kA 20 , 25 , 31.5 , 40 7 Rated short-time withstand current kA 20 , 25 , 31.5 , 40 8 Rated short-circuit duration s 4 9 Rated peak withstand current kA 50 , 63 , 80 , 100 10 Rated short-circuit closing current kA 50 , 63 , 80 , 100 11 Power frequency withstand
VS1-12 | Comparison Guide and Selection Tips
VS1-12 is organized as a sourcing-ready Compact Substations reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time questi
Selection guide
- Confirm the application fit before treating a similar title as a match.
- Compare model range, material, interface, power, capacity or tolerance requirements.
- State quantity band, MOQ, packing, lead time and delivery destination.
- For project sourcing, add installation context, inspection method and service expectations.
Key specifications
- Category
- Compact SubstationsBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- power
- frequency withstandBased on visible page data; confirm exact value in the RFQ.
- Voltage
- Vacuum Circuit Breaker (hereinafter referred to as Circuit Breaker) is an indoorBased on visible page data; confirm exact value in the RFQ.
- Specification
- Serial number Projects unit Value 1 RatedBased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
Product sourcing keywords
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