The single pole vacuum contactor for railway is a special purpose model developed for high-speed railway line over phase directional based on the market demand, the company's R & D strength and years of user's practical experience, which is suitable for rated voltage of 35kV（ 27.5kV ）Up to 50-60Hz , rated current of 2000a and below, single pole or open pole control of the AC system need a large number of opening and closing operation cycle, especially for the ideal electrical appliances for frequent operation.

Kcc18 series is specially designed for over phase optimization, with improved indexes, and can be reliably used in the application of over phase of railway lines.

This series of products are mainly composed of vacuum switch tube, operating mechanism, control electromagnet, power module (suitable for AC operation power supply) and other auxiliary parts, and the installation mode is horizontal installation.

The secondary mechanism of conventional products adopts electromagnetic operation mechanism to control the electromagnet to realize the closing operation of the contactor through the operation mechanism; the opening operation is realized by the opening spring. According to the user's needs, the electronic power module with fast closing can be customized, or the permanent magnet operation mechanism can be used.

This series of products have compact structure, good insulation performance, good secondary circuit maintainability, and long electrical and mechanical life without regular maintenance.

Users are welcome to choose to use.

 

Product features

? main circuit

The vacuum switch tube adopts the products of domestic famous manufacturers. Mature technology, reliable quality, good market reputation.

The main circuit is designed in full accordance with the insulation level specified in the national standard, and the design is strengthened according to the actual application environment, which can meet the use requirements in higher altitude environment.

2000a current level adopts double moving end connection of end face and conductive clamp, with small resistance, low temperature rise and more reliable.

? electromagnetic system

Unique built-in large capacity sealed auxiliary switch, bidirectional forward operation design, greatly improving the reliability and safety of auxiliary switch.

The single coil electromagnetic system is adopted to optimize and simplify the system in coordination with the action force characteristics of the mechanism.

Optimize the action structure, reduce the starting power and holding power of the coil, so the temperature rise is low, the service life is long and more reliable.

? electronic power module with quick closing can be customized for specific users.

The limit buffer is set at the opening limit position of the moving armature to eliminate the accident hidden danger caused by too large opening rebound amplitude.

? action structure

The linear bearing is adopted, which has no clamping stagnation under force and no radial movement, so the action performance and consistency are improved.

Reasonable action mechanism to ensure the axiality of the vacuum tube moving conducting rod. The performance and reliability of the contactor are improved.

Increase the contact pressure of the main contact, improve the electrical performance and action characteristics.

? easy to use and maintain

Heavy load connector is used for control circuit wiring, which is reliable and dust-proof and waterproof. Users can customize the length of control line. The number of auxiliary contacts can be combined according to the use requirements.

KCC-18 PDF