Overview of 12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel

12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel is a type of circuit breaker where the arc quenching medium is a high vacuum. Unlike older breakers that used air, oil, or SF6 gas to extinguish the electrical arc, a VCB utilizes the superior dielectric properties of a vacuum to rapidly extinguish the arc when the contacts separate, thereby interrupting the current flow and protecting the electrical system.

Characteristics of 12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel

Strong arc extinguishing ability: using vacuum medium to quickly extinguish the arc, with high breaking ability.

Safe and environmentally friendly: No fire or explosion risks, no greenhouse gas emissions.

Easy maintenance: Vacuum bubbles are maintenance free, with a long overall maintenance cycle and low workload.

Long lifespan: Both mechanical and electrical lifespan are very long.

Small size: Compact structure, saving space.”

Specifications of 12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel

This 12KV Vacuum Circuit Breaker is the indoor, withdrawable type. It has three poles. It protects high voltage distribution lines and electrical panels. It handles systems up to 12,000 volts. Its rated current reaches 1250 Amps or 1600 Amps. It reliably stops short-circuit currents of 20,000 Amps. This breaking capacity is crucial for safety.

The breaker uses vacuum interrupters inside each pole. Vacuum technology quenches arcs effectively. This ensures reliable circuit interruption. The design is robust. It fits standard indoor switchgear panels. The withdrawable feature is key. You can easily disconnect the breaker for maintenance or testing. You don’t need to shut down the whole panel. This saves time and effort.

Operation uses a spring-energy storage mechanism. You charge the springs manually or with a motor. Then, you close or open the breaker quickly. The stored energy ensures fast, dependable switching. Clear mechanical indicators show the breaker status. You see if it’s open, closed, or ready. Visual cues prevent mistakes.

The construction meets strict safety standards. It provides strong isolation between phases and ground. It handles high voltages safely. Its design withstands harsh electrical environments. This breaker suits demanding applications. Use it in industrial power distribution. Use it in utility substations. Use it in large commercial buildings. It protects critical equipment from electrical faults. Its performance is proven. Its reliability is high. This makes it a trusted choice for managing high voltage power.

Applications of 12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel

This 12KV indoor vacuum circuit breaker is built for tough jobs. It’s the withdrawable type. That means you can easily pull it out for checks or fixes. It has three poles and handles up to 20,000 amps. This power makes it a top choice for protecting medium voltage power lines inside buildings.

Factories use it a lot. Big machines need reliable power. This breaker keeps things safe. It stops dangerous short circuits instantly. It also cuts power during overloads. This prevents fires and protects expensive equipment.

Large buildings need it too. Think hospitals, shopping centers, or office towers. These places have huge electrical demands. The breaker manages the main power feed. It ensures lights stay on and critical systems keep running. Safety for people and property is key.

Power substations rely on it. It controls power flow on distribution panels. Technicians can isolate sections safely using the draw-out feature. This allows work without shutting down the whole system. Maintenance is faster and safer.

Renewable energy sites find it useful. Solar farms and wind plants connect to the grid. This breaker protects the connection point. It handles faults from the grid side or the generator side. System stability is crucial here.

The vacuum inside the breaker is the secret. It puts out electrical arcs incredibly fast when switching. This method is very reliable. It needs less maintenance than older breaker types. It also lasts a very long time. You get strong protection without constant upkeep.

The design focuses on safety. It prevents accidental contact with live parts. The withdrawable mechanism has clear positions. Operators know when it’s safe to work. Sturdy construction handles electrical stress. This breaker is built to perform reliably for years.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality 12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of 12KV Vacuum Circuit Breaker Indoor Withdrawable Type 3 Pole VCB 20kA For High Voltage Distribution Line Electrical Panel

What is this 12KV vacuum circuit breaker?
This is a high-voltage switch. It protects electrical distribution lines. It uses vacuum technology inside. It breaks electrical currents safely. It’s rated for 12,000 volts. It’s designed for indoor electrical panels. It has three poles for three-phase power.

Why use vacuum technology?
Vacuum is a superb insulator. It stops electricity very fast. It prevents dangerous arcs. This makes the breaker reliable. It needs less maintenance. It lasts longer than older types. It handles high currents well. The 20kA rating proves this.

What does “withdrawable type” mean?
This breaker slides in and out. It connects to a fixed panel frame. You can pull it out for checks. You can pull it out for repairs. You do this without touching live parts. It makes maintenance safer. It makes maintenance faster. Power stays off for less time.

Why is the 20kA rating important?
20kA means 20,000 Amperes. It shows the fault current the breaker can stop. High fault currents happen during short circuits. The breaker must handle this safely. It must interrupt the current without damage. This rating ensures protection. It prevents equipment failure. It prevents fires.

Where is this breaker typically installed?
You find it in indoor substations. You find it in power distribution centers. It protects factory electrical systems. It protects large building electrical systems. It connects to high-voltage distribution panels. The withdrawable design suits switchgear cubicles. It allows easy access and replacement.