YZTW KDHc 20A tire changer rotary switch 380V/220V

Product Description

KDHc series transfer switches are mainly used in electrical circuits with AC 50Hz, rated working voltage 380V, and rated current 20A to 100A, for manual infrequent connection, breaking and positioning self-resetting circuits, as control or conversion; mainly used for NBC- 200, 250, 315, 400, 500, 630 and other CO2 gas shielded welding machines, inverter arc welding machines and air plasma cutting machines and auto parts industry, repairing machines, tire grinding machines, balancing machines, etc. to adjust current or voltage, can also be used Used as a circuit change in electrical equipment.

Model and its meaning

The main technical parameters

Mechanical Durability and Electrical Durability

• Mechanical life: 20,000 times, operating frequency 120 times/hour.
• Electrical life: 10,000 times, operating frequency 120 times/hour.

normal working condition

• The ambient air temperature does not exceed +40°C, and the 24h average temperature does not exceed +35°C;
• The minimum ambient air temperature is -25°C;
• The altitude of the installation site shall not exceed 2000m;
• When the maximum temperature is +40°C, the relative humidity of the air is not more than 50%, and the higher relative humidity
• It can be allowed at a lower temperature, such as 90% up to 20 ℃;
• The pollution level of the surrounding environment is level three;
• The switch can be installed in any unallowable position.

Shape and installation dimensions

KDHc-20,25,32,40,63,100A on-off principle diagram

The switch principle can be designed and manufactured according to user requirements