Toggle switches are electrical switches that are activated by a mechanical lever or handle. The most well-known devices operated by toggle switches are light switches. However, toggle switches can be used for a variety of items that require electrical switches, from automobiles to guitar amplifiers.
Maintained contact toggle switches are configured to support a variety of positions, including on/off, three-position center-off and three-position no center-off. Switch functions for momentary contact toggle switches include momentary on, momentary off, three-position momentary center-on, three-position momentary center-off and three-position momentary central-neutral. Before you purchase toggle switches you should know that:
- The base of toggle switches and toggle switch actuators are most commonly made of plastic, thermoplastic or metal materials.
- In terms of features, both maintained contact toggle switches and momentary contact toggle switches may include a pilot light or illumination, imprinted markings, wiping contacts, locking mechanism and time delay, to name a few.
- The most important specifications to consider when shopping for toggle switches are length or diameter, width and panel thickness.
- The way an electrical switch makes and breaks the connection to its source is determined by its pole configuration. Toggle switches are available in single-pole through four-pole models.
Action Steps
The best contacts and resources to help you get it done
Use general application toggle switches
A variety of toggle switches are able to meet virtually any application.
I recommend: Carling Technologies offers a broad range of toggle switches, including
heavy duty and
illuminated versions.
NKK Switches sells a broad range of toggle switches with washable surface mounts. For the most basic residential toggle switches, visit
Lamps Plus.
Use industrial toggle switches for specific applications
Industrial toggle switches are designed for use in a variety of industries.
I recommend: APEM Components sells a variety of industrial toggle switches designed for military applications and also sells toggle switches specifically manufactured for use in the defense, avionics, space and telecommunications industries. Go to
WiringProducts for industrial toggle switches for automotive and marine use.
Accessorize your toggle switches
From covers to boots, a host of products are available to complement toggle switches.
I recommend: Color-code your toggle switches with covers from
Aircraft Spruce and Specialty. Protect toggle switches from contaminants like dirt, dust, gas and liquids with
switch boots, such as those from APM Hexseal. At
Del City, you can find toggle switch boots and safety covers.
Tips & Tactics
Helpful advice for making the most of this Guide
- The traditional light switch mechanism is comprised of maintained contact toggle switches that stay on until disengaged. Momentary contact toggle switches are only operational when initially tripped, and are used in automobile horns.
- Before attempting to install toggle switches, make sure to shut off the main electrical supply to avoid the risk of shock.
- Electrical switches are classified in several ways, such as according to number of poles, method of operation (manual, magnetic, snap, drum) and protection provided to circuits or equipment.
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