Crompton Vacuum Contactor CSVP11 110 VDC 3 Pole

A “Vacuum Contactor” is a ‘switching device” which “makes and breaks” the current in a chamber known as the ‘Vacuum Interrupter Tube” (VI). A breaking arc is formed between the fixed and moving contacts of the VI. At current zero the arc extinguishes and the circuit voltage is isolated internally by the rapid build up of dielectric strength between the fixed and moving contacts. The special contact material used in the VI ensures low chopping current and switching over voltage thereby enhancing the life of the connected load (i.e. motors, transformers, capacitors etc).