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Is this considered a single throw switch or a tripple throw switch and what's the difference

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We cannot see the product you are asking about
Example single throw switch is household light switch ..., flip the switch either direction and load turns on-off.
Example double pole switch is 240 volt double breaker... flip the breaker and two wires turn on-off.
Example triple pole switch is any 3 phase contactor or 3 phase timer ... flip the switch and three wires turn on-off

http://waterheatertimer.org/How-to-wire-switches.html
http://waterheatertimer.org/How-to-replace-circuit-breaker.html
http://waterheatertimer.org/3-Pole-contactors.html

Gene

Water Heater Timers Save Money

Posted on Jul 15, 2015

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Why does some automotive toggle switches have just two prong for power and some have three for power and ground. Is the ground necessary when what you're wiring is already grounded?


The switch with two prongs is a single-pole, single-throw switch; it is either on or off. The switch with three prongs is likely a single-pole, double-throw switch. That is, it controls two circuits but only one can be on at a time. For instance, it could control a two-speed fan with one position being low and the other being high. The "ground" you speak of is the common terminal and may or may not be connected to ground. You can find more information by searching for SPDT and SPST switches on Google.

Dec 29, 2016 | Dryers

1 Answer

Pair Siemens dimmer 300w sockets


You need THREE-WAY SWITCHES to be able to use them in tandem. SPDT (Single Pole Double Throw) switches.

You cannot install two ONE-WAY switches (SPST - Single Pole Single Throw) to switch from two loacations.

You CAN, however, use ONE Three-way dimmer on one end of the room, and one Three-way 'regular' switch on the other, if dimming from just one place is adequate for you

Oct 10, 2014 | Electrical Supplies

1 Answer

Replacing a triple single pole (1980's) with a


DISCLAIMER:Attempting to work on house electrical systems without proper training is DANGEROUS and you stand the risk of dying.


The Cooper 7729w is a three pole single throw switch with a common (connected) hot wire that supplies it. What you had before was two separate single pole single throw switches and one single pole double throw switch that is used as a three way. The short answer is NO that replacement will not work UNLESS you don't want the other switch on the other side of the room to work.


Personally, I think that if you really need to ask this question you need to seek the advice of a professional electrician.

Dec 18, 2012 | Electrical Supplies

1 Answer

I need an on/switch for a 6inch buffalo grinder model #b-6cb cycle 60 1/2 hp voltage 110 amb2 3450 rpm serial#8587745


Find a Single Pole Single Throw (spst) toggle switch at the local hardware store rated for the load of the grinder. Wire the switch in place and viola you are done! Machines are stupid;they can tell the difference between an oem part and a replacement.

Aug 30, 2011 | Grinders

3 Answers

Can I used the T103M dpst spst timer for christmas lights? I would be coming off 2 20amps breakers in a single slot. I relly don't understand what a dpst and spst are (what they do) I am trying to hook up...


T103M is 120Volt timer that can handle all the Christmas lights.
Minimum on-off time 1 hour.
Rotate dial until current time lines up with silver pointer.
Set on-off trippers on dial.
Let's go step by step.

1) T103 has terminals A 1 2 3 4 >> terminals are also called poles
DPST (double pole single throw) and SPST (single pole single throw) are two different ways to wire this particular timer.
T103 timer can be wired numerous ways... but your project is not complicated.
DPST means timer turns off two terminals/poles (double pole) with each click/throw of timer switch (single throw)
SPST means timer turns off one terminal/pole (single pole) with each click/throw of timer switch (single throw)

2) T103 timer is ST single throw, all the lights come on at same time. So this timer is 1 channel.
1 channel timers are either ON or OFF and everything turns on-off at same time.
You cannot stagger on-off times with 1 channel timer.
If you want upstairs and downstairs lights to come ON at different times, you need two timers .. or a 2-channel timer (which is different ballgame).

3) T103 timer has 120Volt clock motor that is connected to terminals A and 1.
Look at timer and you can see small white wires connected to A and 1 terminals that power 125V clock motor.
When wiring this timer, your wires from 20 amp breaker box connect to terminals A and 1.
Black hot wire from breaker must connect to terminal 1
White neutral wire from neutral busbar must connect to terminal A
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103
http://waterheatertimer.org/B220C.html

4) Terminal 1 must be hot so when timer switch clicks ON, it sends power to terminal 2.
Your load wires connect to terminals A and 2
I made simple drawing of SPST option showing how to wire T103 to 3 receptacles.
Fixya downgrades image so it's hard to see.
Hot wire to terminal 1
Load wire to terminal 2
Neutrals on terminal A
To see image larger:
http://waterheatertimer.org/images/110-600-21Kb.jpg

geno_3245_171.jpg
If you want to wire timer for DPST, which is necessary for loads exceeding 2 horsepower (1500 Watts) on each terminal
Notice black jumper wire from terminal 1 to terminal 3
Notice all white neutral wires to terminal A
To see image larger:
http://waterheatertimer.org/images/110-600-17Kb.jpg
geno_3245_172.jpg
I made third image for guy who was wiring high amperage blowers, that show wiring for two T103 timers. Having two timers would let upstairs and downstairs lights come on at different times.
http://waterheatertimer.org/images/110-with-2-timers.jpg

Dec 11, 2010 | Intermatic 24 Hour Mechanical Mechanisms...

1 Answer

Can the T103R work with two speed pump


yes it can because it is no different than the power being turned on. Your two speed pump will still work fine

Sep 07, 2010 | Intermatic T103R 120-Volt 40-amp Timer...

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