With the development of transportation equipment, train has become one of the best choices for people to travel, which is not only economic, environmental protection, but also is efficient and convenient. The train runs between countries, It is called transnational train. For example, the train from China Chengdu to Europe is called Rong-Ou train. There are city to city trains, which are called intercity trains. For example, the train from Shanghai to Beijing in China is also called Jing-Hu high railway. There are trains running in the city. They are called subways.
The train between countries, between cities, or running in cities, they all have a common feature, that is the power of the train is no longer steam, but electricity power, so the degree of electrification and automation on the train is getting more and more, electrical equipment and electrical switches are very common and more important. Today we mainly introduce the switch of Siemens APT in the train, it has a leading position in China’s train industry.
LW39-16c and LW39-16cu cam switch, the conventional thermal current is 16a, and the angle of operating handle can be 30 degrees, 45 degrees, 60 degrees and 90 degrees. IP protection can get IP65. When the voltage is 24V and the current is less than 100mA, the contact will adopt special plating gold process. The logo of panel can be customized or special symbol according to the design of the customer.
Main Technical Data of Cam Switch
|Standards||IEC 61373-1999, IEC 60947-5-1, DIN5510.2, EN45545|
|Rated Insulation Voltage||AC 660V|
|Conventional Thermal Current||Ith 10A|
|Uimp||AC 2500V 50Hz.1min|
|Contactor Rated Capacity||Spring pieces-action type: |
AC-15 220V/2.5A 380V/1.5A 660V/0.8A
DC-13 24V/3.6A 48V/3A 110V/1A 220V/0.4A 440V/0.25A
Push rob-action type:
AC-15 220V/6A 380V/4A 660V/2A
DC-13 24V/6A 48V/3A 110V/1A 220V/0.5A 440V/0.25A
|Contact Resistance||TK: ≤50mΩ RW: ≤30mΩ|
|Mechanical Endurance||Push button switch≥3 million times, selector switch≥300 thousand times, key switch≥50 thousand times, emergency stop Pushbutton≥50 thousand times|
|Electric Endurance||≥600 thousand times|
|Impact Resistance Class||Duration 11ms maxim accelerated speed 15g comply with IEC600682-27|
|Vibration Resistance Class||Maximum accelerated speed 5g frequency range 10~500Hz comply with IEC60068 2-6|
|Ambient temperature||-25℃ ~ +55℃|
|Relative Air Humidity||≤90% (the average temperature in this month)≤25℃|
|Protection Class of the front part||IP54|
|Pollution Class||Class 3|
Lead Sealing Switch
Lead seal type selector switch is also one of the selector switches, its rotary handle of the lead seal switch is designed with lead seal, which is used for operation memory and special operation permission setting, and is often used to replace the previous knife switch on the train. The usual protective measure is to turn the switch to a certain switch position, such as lead sealing when the switch is turned on, and the lead sealing can only be released by the person with authority.
LA39-c1-qf-tk and LA39-c1-qf-rw lead seal switches of siemens APT, its lead seal hanging parts are available in plastic and metal materials. The color of the operating handle is black, red or green.
LA39-c1-tk and LA39-c1-rw selector switches have two positions and three positions to choose. The front metal ring color has two kinds: black and silver white. The operation handle has short handle and long handle, with and without lights to choose.
Triangle and Quadrangular Key switch
Triangle Key Switch and Quadrangular Key switch, its lock is designed into a special triangle and quadrangular, and the key is designed into a special handle that can be carried with you. And they are widely used in modern trains.
LA39-j is a triangle key switch, LA39-k is a quadrangle key switch, LA39-n is an inner quadrangle key switch, LA39-l is an inner hexagon key switch. For the key switch, we can customize the shape and length of the lock head.
The key switch has two series, LA39-c1 and LA39-a. La39-A key switch is specially developed for the train, which is mainly used for the main control key of the propulsion operation driver’s console of China Fuxing train.
Push Button Switch
LA39-c1-tk and LA39-c1-rw push button switches are widely used in the train. LA39-c means the product series, 1 behind C means the installation with two auxiliary screws, TK means the use on the train, RW means the special use of the train driver’s console.
LA39-c1-tk and LA39-c1-rw push button switch, which installation hole cut-out is 30.5mm, available with flat push button and illuminated flat push button. The front ring of the product is available with black metal rings and silver white metal rings.