Terminal Town's Electrical Parts-SWITCHES

Welcome To Terminal Town

We Are An Experimental Aircraft Builder Friendly Site Featuring Mil Spec Electrical Connectors and Related Product for Aviation, Marine and Everything Else That You Want To Use The Best Product On!

Terminal Town's Electrical Parts-SWITCHES How To

Toggle Switches: What does SPDT Mean?

SP Single Pole A device that opens, closes or changes a connection in a single conductor of an electrical circuit.	ST Single Throw A switch that opens, closes or completes a circuit at only one of the extreme positions of its actuator.
DP Double Pole A device that opens, closes or changes a connection in two conductors of an electrical circuit	DT Double Throw A switch that opens, closes or completes a circuit at both of the extreme positions of its actuator.

To purchase switches Click Here

Single Pole, single throw used on single wire circuits.

SPST-Two Position: OFF-ON

Single Pole, double throw used on two single wire circuits, permitting only one circuit to be energigized at a time.

SPDT-Two Position: ON-ON

Single Pole, double throw used on two single wire circuits, permitting only one circuit to be energigized at a time.

SPDT-Three Position: ON-OFF-On

Double Pole, single throw used to control two circuits simultaneouly. Circuits are off at the same time and on at the same time and may be of different voltages and from separate sources.

DPST-Two Position: OFF-On

Double pole, double throw switches control four circuits, premitting only two circuits to be energized at one time

DPDT- Two Position: ON-OFF

Double pole, double throw switches control four circuits, premitting only two circuits to be energized at one time

DPDT- Three Position: ON-OFF-ON

Typical SPST Sizes

Typical DPDT Sizes

purchase switches Click Here

Terminal Town
9219 Co. Rd. 28SW
Alexandria, MN. 56308

E Mail Us!

These pages, and all contents, are Copyright (C) 1998-2004 by
Terminal Town

NOTICE