A two-pole (or double-pole) switch is two one-pole switches operated by the same lever (or similar activator); that is, if it’s a single-throw switch. You “throw” this lever one way, and you interrupt ...

The Double Pole Single Throw DPST relay is the equivalent of 2 SPST switches (NO Normally Open and NC Normaly Closed) and can be used to switch 2 different loads. As you can see in the schematics ...

In its most basic form, a transfer switch for a 120/240V single-phase service is simply a double-pole, double-throw switch of proper ampere rating with a middle off position (Fig. 1). By design, it is ...

The addition of an extra contact to an SPST switch lets it turn off one circuit and turn on another. This makes it a single-pole double-throw (SPDT) switch. Double-throw switches can make ...

In this second application we can use the DPDT switch to choose between 2 different load and have a visual indication of what load is connected. In our case (diagram 1) when there is no voltage ...

A dual-pole, dual-throw relay is housed inside of an electrical ... In [Maarten]’s case it was a relay that had the right current ratings to switch his PC and Internet modem/router, and in ...

switch rocker mechanism to open or close a circuit commonly used in power strips and appliances Photo and symbol for single pole, double throw (SPDT) toggle switch single pole double throw (SPDT ...

Menlo Micro has introduced a double-pole/triple-throw (2x DP3T) switch. The MM5620 switch provides the highest performance and data rates for high-speed differential ...

The defrost termination/fan delay control is a temperature-activated, single pole-double throw switch controlled with a remote sensing bulb (Fig. 1). The control can be an adjustable type. One example ...