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Toggle switches

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naumuk(at)windstream.net
Guest

Posted: Sat Apr 04, 2009 1:44 pm Post subject: Toggle switches

All-

     Just making sure. On an SPST  toggle switch, the center terminal is hot and the top terminal is switched,  right?

 Bill Naumuk

Townville, Pa.

HDS 601MG/Corvair  95%

   [quote][b]

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psm(at)att.net
Guest

Posted: Sat Apr 04, 2009 2:23 pm Post subject: Toggle switches

Hi Bill,



 An SPST switch only has two contacts.  They can be treated the same.  They are either connected or not.



 Paul

 XL getting close

 do not archive



 At 02:41 PM 4/4/2009, you wrote:



 [quote]All-

     Just making sure. On an SPST toggle switch, the center terminal is hot and the top terminal is switched, right?

 Bill Naumuk[b]

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BobCollins

Joined: 12 Aug 2008
Posts: 19
Location: Sunnyvale CA USA

Posted: Sat Apr 04, 2009 2:33 pm Post subject: Toggle switches

Hi Bill,

A SPST (single pole, single throw) switch only has two terminals. My 

guess, assuming you have a three terminal switch, is that you have in 

your hand a SPDT switch. The best way to fully understand its operation 

is to use a multimeter and investigate its function in all switch 

positions. There...just enough to be dangerous!



Bob Collins

Sunnyvale CA USA

Bill Naumuk wrote:

 	  Quote: 	
		   All-

     Just making sure. On an SPST toggle switch, the center terminal is 

 hot and the top terminal is switched, right?

 Bill Naumuk

 Townville, Pa.

 HDS 601MG/Corvair 95%

 *

 *

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bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Sat Apr 04, 2009 3:39 pm Post subject: Toggle switches

For a SPST switch, the power comes in on one terminal and and out the  

other when the switch is on. As far as functioning is concerned, it  

really doesn't matter which terminal the wire are hooked to, the  

switch will function the same. For a DT switch, the center terminal is  

usually the common terminal and the hot wire is connected there. Just  

for the sake of uniformity, to make troubleshooting easier at some  

future date, it's a good idea to connect the hot wire to the center  

terminal on both types of switch.



On Apr 4, 2009, at 5:41 PM, Bill Naumuk wrote:



 	  Quote: 	
		   All-

     Just making sure. On an SPST toggle switch, the center terminal  

 is hot and the top terminal is switched, right?

 Bill Naumuk

 Townville, Pa.

 HDS 601MG/Corvair 95%


	




-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

do not archive.

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_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.

craig(at)craigandjean.com
Guest

Posted: Sat Apr 04, 2009 4:04 pm Post subject: Toggle switches

SPST? A SPST switch only has two terminals so it doesn’t matter what way you wire it. A SPDT  (D for “double”) has a center terminal and two outer terminals. The common “pole” is the center terminal. But use an Ohm meter or test lamp to check which of the outer terminals is connected to the center pole for which position of the toggle. Depending n the switch’s mechanical internals it can be the side the handle is on or the opposite.  

   

-- Craig  

       

From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Bill Naumuk

 Sent: Saturday, April 04, 2009 3:41 PM

 To: zenith list

 Subject: Toggle switches  

  

  

     

All-  

    

    Just making sure. On an SPST toggle switch, the center terminal is hot and the top terminal is switched, right?  

    

Bill Naumuk

 Townville, Pa.

 HDS 601MG/Corvair 95%  

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       [quote][b]

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naumuk(at)windstream.net
Guest

Posted: Sat Apr 04, 2009 4:13 pm Post subject: Toggle switches

No, it's only two terminal. I'm just doing a final review of my wiring 

before mounting the panel. No big deal, if the terminals work the other way 

I'll just pull the connectors off and reverse them.

                                                                             

                Bill

                                        do not archive



---

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