Intermediate Switch

Intermediate Switch Points : Intermediate Switch, Definition Intermediate Switch has four terminals. If the nob of switch is in upper position then the upper and lower contacts are shorted and when the position of nob is in lower, state then the contacts are connected in cross-form. If we control one lamp to three places then we use two 2-way switches and one intermediate switch. If we control to one lamp for 4 places then we use two 2-way switches, and two-intermediate switches.