Double Throw Safety Switch Wiring Diagram

Though it is not difficult to wire a double switch careful attention to safety is crucial to prevent injury.

Double throw safety switch wiring diagram. The center position is off. Below is an example of a circuit which utilizes a double pole double throw switch. This is how you wire a double pole double throw dpdt switch. Double throw safety switches are used for switching one load between two different power sources.

Applications include commercial buildings healthcare facilities manufacturingmining and more. Ul listed and cul listed ul98 enclosed switchescsa c222 no. A double pole double throw dpdt switch is a three selection electrical device in which there is one off and two on positions. Double throw closes a circuit in the up or down position on on.

All 2 and 3 pole double throw switches are suitable for use as service equipment. All are ul listed. You can see above how a double pole double throw switch can allow a circuit to be in 1 of 4 modes. They also have the capability of switching two loads between one power sources.

Provide optional standby power connections in accordance with article 702 of the national electrical code ansinfpa 70 and the cec. For example you might want to turn on a bathroom light separately from the ceiling fan. Double throw safety switches designed to be tough reliable and provide exceptional performance in the most grueling conditions. A double throw switch can also have a center position such as on off on.

Tutorial for configuring square d f series 30 100 amp types dt and dtu double throw safety switches for single input source and two separate loads rather than two sources and one single load. When is the switch is one way the lamp is on and the led is off. The dpst switch for example has four terminals however is a double pole dp and not a four pole 4p switch. Double pole double throw switch dpdt circuit.

2 methods are explained with associated wiring diagrams. The motors two power leads are reversed at one of the switches screw terminals. Double throw switches are intended to transfer loads from one power source to another. Switches are rated for use on systems up to 10000a when protected with class h fuses or up to 200000a when protected with class r j or class t fuses.

Our double throw safety switches meet the following standards. Single throw closes a circuit at only one position. An application for this switch is for reversing a direct current dc electrical motor. To wire a double switch youll need to cut the power remove the old switch then feed and connect the wires into the double switch fixture.

Circuit a is connected to a lamp and an led.