Kuk-12 12kv AC Vacuum Circuit Breaker for Industrial Electrical Systems

Product Description

Main Product

Product Description

KUK-12 circuit breaker has the advantages of easy installation, less maintenance, long service life, small size, cheap price, safe and reliable, etc...

This product complies with the technical requirements of GB1984-89, GB/T1984-2003 AC high voltage circuit breaker.

The main circuit is 630A-20kA (4S) and 25kA (3S), and the mechanical life is 10000 times.
Grounding circuit 20kA (2S), mechanical life 2000 times.

Considerations for the use of environmental conditions

Outline and Installation Dimensions

The altitude is not more than 1000m, and the crack degree is not more than 8 degrees.

Pollution level: II

The environmental temperature of the product is -40 degrees ~+140 DEG C, the relative humidity is not greater than 90% per day, and the average is not more than 90% per month;

The installation site of frequent and violent shock, water vapor, chemical corrosion deposition, salt fog, dust, dirt and fire, which obviously affect the performance of the mechanism, are not suitable for the installation of explosive dangerous installations.

Overall Width: 496 mm

Overall Height: 313 mm

Phase-to-Phase Distance: 150 mm

Top Bracket Mounting Pitch: 96 mm

Side Profile Depth Dimension: 150 mm

Vertical Mounting Hole Distances (Side View): 32 mm and 110 mm

Outline Drawing

Typical Applications

Technical Specifications Quick View

Medium-Voltage Switchgear Integration

Serves as the primary control and protection component inside indoor metal-clad switchgear and ring main units (RMUs).

Industrial Power Distribution Networks

Ideal for power distribution systems in factories, mines, and manufacturing plants, providing robust overcurrent and short-circuit protection.

Substation Control Systems

Used in compact distribution substations to reliably switch transformers and manage sectionalized power networks under heavy electrical stress.

Renewable Energy Stations

Suitable for the control panels of wind farms and solar power plants requiring high mechanical durability and extensive temperature adaptability (-40°C to +140°C).

Infrastructure and Buildings

Deployed in commercial high-rises, data centers, and hospital power systems to ensure safe, continuous electricity delivery.

Rated Voltage: 12 kV

Rated Current: 630 A

Main Circuit Resistance: ≤ 30 μΩ

Main Circuit Short-Time Withstand Current: 20 kA (4s) / 25 kA (3s)

Grounding Circuit Short-Time Withstand Current: 20 kA (2s)

Main Circuit Mechanical Life: 10,000 times

Grounding Circuit Mechanical Life: 2,000 times

Contact Bounce Time: ≤  2 ms

Mean Speed of Gate Separation: 0.6–1.4 m/s

Closing Average Speed: 0.4–1.1 m/s

Phase Non-Simultaneousness: ≤  2 ms

Operating Temperature Range: -40°C to +140°C

Pollution Level: Level II

Company Profile

Company Advantage

Certifications

Service System

Packaging Solutions

1.Customized Cartons, Precision Match
Tailored Solutions: We offer custom cartons in various sizes, ensuring space utilization and optimized shipping costs.
Robust & Durable: Made from high-strength corrugated material, our cartons resist compression and impact.
2.Brand Exclusive, Highlighting Value
Visual Identity: Personalize with logo and design patterns, turning packaging into a brand billboard.

3. Honeycomb Cushioning, Enhanced Safety
Core Protection: Honeycomb paperboard offers superior compression and shock absorption for fragile products.
4. Eco-Friendly Materials, Recyclable
Green Concept: Our recyclable materials promote sustainability, aiding businesses in green initiatives.
5. Transportation and Storage Recommendations

Avoid heavy pressure, moisture, and high temperatures. Stack up to 3 layers. Suitable for all freight types.

Packaging & Shipping