Electrical Switches

Electrical light switches found in the home fall into three basic categories. The main difference between them is the means they use to connect the contact points and send electricity to the light:

  • Toggle switches, which have a simple armature to connect the contact points. When the toggle switch is turned off, the armature is removed from the contact points, breaking the connection. When the switch is on, the armature links the two contact points, making the connections and sending power to the light.
  • Silent switches, which use a spring armature to provide a contact point with the circuit. The spring is pulled back when the switch is turned off. When it is turned on, the spring pushes against the contact point, sending power through the light.
  • Mercury switches, which rely on a small cylinder filled partway to the top with mercury. The contact point stays above the mercury level until the switch is turned on, when the point lowers into the mercury. The liquid metal provides the contact for the light.

Find Free Shipping for Electrical Supplies Online

Though all three types of electrical light switches can be swapped out for each other, electricians should still be familiar with all of them, and have coverings and similar supplies available on a moment's notice. Wholesale ordering online allows electrical light switches to be sent in bulk, which saves time and money. Electrical industries provides bulk orders for both standard and unusual electrical light switches, as well as free shipping for orders placed in the United States. To speak with a company representative, send an email to sales@electricalindustries.com , or call 313-790-3000.