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What does the abbreviation DPDT stands for what type of switch?
Wiki User
∙ 13y ago
A DPDT switch is a Double Pole Double Throw switch
Wiki User
∙ 13y ago
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it is a form of switch- all or nothing-0n and off, and for this reason it is often used as a master switch or main-disconnect. the single pole single throw has one switch blade, not the cutlery variety, which vaguely resembles a knife, hence the name, went he handle is down and in the contacts the switch is closed and the power is on. lifting the handle disconnects the circuit. they are somewhat obsolescent, but are retained for instructional purposes in shop and science classes, so there is a limited market for the smaller sizes. On the other hand a DPDT- Double Pole Double throw switch- or circuit breaker, is in everyday use and has defied obsolescence since the days of Edison. the DPDT is used on master switches and controls two circuits, usually with a center off position. Thet were used as aerial switches- to select transmit or receive in early shortwave and ham sets. they are very much around and have been nicknamed (Mousetraps) from their shape and outline. very much in use and I have a l907 electrical handbook that illustrates them some have shunts or condensers across the base ( wood or plastic, usually) of the switch. this has various uses but keeps the currents at a safe value in radio use.
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In electronics, an SPDT is a type of switch. It stands for "Single Pole, Double Throw." In America, it's known as a three-way switch.
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Where is S.P.D.T. used?
In electronics, SPDT refers to a particular type of switch; a "Single Pole Double Throw" style. Other flavors I think you may recognize now are SPST, DPDT, and TPDT. It breaks down like this; the "Pole" count (single, double, triple, etc.) refers to the number of switch contact sets that are connected to the switch lever. The "Throw" count refers to the number of positions the switch lever is designed to be set to. Light switches in your house are SPST switches.
