Switch
: This article is about electrical switches. For other meanings of the word "switch", see Switch (disambiguation).
Intermediate switch
A DPDT switch has six connections, but since polarity reversal is a very common usage of DPDT switches, some variations of the DPDT switch are internally wired specifically for polarity reversal. They only have four terminals rather than six. Two of the terminals are inputs and two are outputs. When connected to a battery or other DC source, the 4-way switch selects from either normal or reversed polarity. Intermediate switches are also an important part of multiway switching systems with more than two switches (see next section).
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~ Table of Content ~
| ► | Introduction |
| ► | Contact arrangements |
| ► | Biased switches |
| ► | Special types |
| ► | Intermediate switch |
| ► | Multiway switching |
| ► | Contact bounce |
| ► | See also |
| ► | External links |
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