Question about Intermatic K4123C Photo Cell Control 208-277 V 50/60 Hz. 3100-4100 Watt "T"

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240v input, and a neutral wire. what wires connect to the black, white and red conductors on the photoeye it is a k4123c intermatic

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How do you wire a intermatic k4123c photo cell to lights that are 208volts,you dont need a nuetral wire for 208,what do you do with the black,red,and white wires on the photo cell


I near as I can tell, each Intermatic photo cell needs a neutral wire.
Open following link for illustrations of wiring.
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#photo
Call Intermatic:
http://www.intermatic.com/customer%20service.aspx

If your breaker box has 120Volt service and a neutral busbar, then connect photo cell white wire to bare ground wire until you have time to run separate neutral line.
http://waterheatertimer.org/B220C.html

Aug 21, 2011 | Intermatic K4123C Photo Cell Control...

1 Answer

How to wire model t10004 control panel intermatic inc? I am just looking for a picture of the wiring diagram. All I need to do is hook up a the wiring for the light.


T10004 control panel has 240V T104 timing mechanism.

1) You can use T104 timer to control 120volt light if you have a neutral wire:
http://waterheatertimer.org/images/T-104-control-120V-Load3-45.jpg

2) Lights are usually 120Volts with black hot wire and white neutral wire.
3) T104 timer is 240Volts with two hot wires L1 and L2 that can be white-black wires or red-black wires.

4) Open following link to see basic 120V and 240V circuits.
http://waterheatertimer.org/B220C.html

5) Open following link for T104 wiring options
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Jul 17, 2011 | Intermatic T10004R - Pool-Spa Mechanical...

1 Answer

Where do the three wires go


Open following link for photo-cell wiring diagram image:
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#photo

Black wire goes to Hot Line wire from breaker box.
Red wire goes to Load.
White connects to white neutral wire from breaker box.

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May 12, 2011 | Intermatic K4123C Photo Cell Control...

1 Answer

70 amp stabloc panel, using 8/3 to panel from 40 amp main breaker at 200 amp panel. white wire to white, black to black? red wire to ? thanks


Depending on what type of wire you have, 8/3 is not large enough for a 70A breaker. Is this a 240V circuit? or 120V If you are using 8/3 is it 8/3 WG that is 3 insulated conductors (red,black,white) along with bare ground? If so then you'd use the black and red for the two "hot" conductors, and the white for the "neutral" conductor. If it is just two insulated conductors, with ground (white, black and ground) then yes black to breaker and white to neutral bar. The amperage rating will vary on the wire depending on wire type. For example 8/3 is in NM? usually that rating will not be enough for 70A. In fact even #6 copper conductors in conduit is not quite large enough for 70A.

Nov 23, 2010 | Federal Industries Circuit Breaker -...

1 Answer

How do I wire an intermatic t-103 timer switch


The T-103 has a 120Volt clock motor

From there, the wiring can go two directions depending on your Load voltage (load is the fan, light or motor that timer turns on-off)

Here is a link that shows exact wiring:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103

When wiring the T-103, steps 1-2-3 are true for 120V or 240V installation:
1) A white Neutral wire is always connected to terminal A (Neutral wire connects to Neutral busbar in breaker box)
2) A black Hot wire is always connected to terminal 1 >> this hot wire can come from 120V or 240V breaker
3) Black wire going to Load (fan, light, motor) is always connected to terminal 2
The following step is true for 120V Load
4) if Load is 120V, then white wire from Load connects to terminal A
The following steps are true for 240V Load
5) Only the neutral wire connects to terminal A as described in (1
6) The second Black hot from breaker box (240V has 2 hot wires) connects to terminal 3
7) The second White going to Load connects to terminal 4

Here are 2 more links that show how 120V and 240V circuits are wired
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html

Oct 21, 2010 | Intermatic T103 Indoor 120-Volt 40-amp...

1 Answer

How do you wire a intermatic t103


I'm looking at the T-103 sitting here in my office.
Terminals are labeled: A 1 2 3 4
I have about 10 different Intermatic timers on the shelves & each is a bit different

The T103 has a 120Volt (or 110V) clock motor
You need a white Neutral wire to operate the T103 clock

120V: Let's say your Load (light, fan, pump) is 120V
The white Neutral from breaker box connects to Terminal A
The 120V black Hot wire from breaker box connects to Terminal 1
The black wire going to Load (fan, light, motor) connects to terminal 2
The white wire going to Load connects to terminal A along with the Neutral
Ground wires connects to green ground screw
If your wires from breaker and wires to load are wired in reverse, the timer will turn ON the Load but the timer will not shut the circuit OFF.
To test which wire is Hot and Neutral, look at explanation at bottom of page.

240V: Let's say your Load is 240 Volts (or 220 Volts)
The clock motor is still 120V so you still need a white Neutral wire connected on Terminal A
Now you have 2 Hot wires coming from breaker box
Hot wire 1 from breaker box connects to Terminal 1
Hot wire 2 from breaker box connects to Terminal 3
Wire 1 going to Load connects to Terminal 2
Wire 2 going to Load connects to Terminal 4
Ground wires connects to green ground screw

What if you don't have a Neutral wire and you are wiring a 240V circuit?
240V circuits normally have 2 hots and a ground, but no neutral
Buy the T-104 timer
The T-104 has a 240V clock motor
Wiring for the T-104 is exactly the same as 240V wiring shown above for T103 EXCEPT there is no Neutral on Terminal A, and Terminal A is bare
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

How to test which wire is Hot
Test requires wires with live electricity >>> this is not advisable without precaution
Stand on dry boards, do not touch anything metal, wear dry clothes, do not hold screwdriver in mouth, wear gloves, tape tester leads to wood sticks so hands are away from power
Remove wires from terminals
Separate wires so they can be tested
Turn on power
Test each wire to bare ground wire
Tester lights up on Hot wire(s)
If circuit is 120V, then there is only one Hot wire
If circuit is 240V, then 2 wires will test hot to ground >> these wires will be Hots 1 & 2
Test assumes circuit breaker is functioning normally.

How do you test for neutral?
If you have 120V line with only 1 hot wire, then one of the white wires will be Neutral?
Test Hot wire to each white wire
Tester lights up on neutral

Oct 17, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

I am installing a 240v heater in my downstairs bathroom. The heater schematic has a single BLACK 240v live input wire and a WHITE 240v neutral output wire, plus a yellow/green stripe ground wire. I have...


you dont need all that wht is 120vt blk is 120vt thats your 240 their is no neatral on 240 volt ont a 120 volt circuit it sounds like it is wired correctly you may have a wire not getting good conection

Sep 18, 2010 | Heating & Cooling

1 Answer

Wiring program timer switch model t1905 intermatic


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http://www.intermatic.com/products/timers/mechanical%20time%20switches/24%20hour%20dial%20with%20skipper.aspx
T1905 has 4 screws: NO normally open > NC normally closed > COM > Clock
NO screw is on left
NC screw is 2nd from left
COM is 2nd from right
Clock is on right

A) How to wire t1905 for 125V
You will have four wires >> a Black and White from breaker box; and a Black and White to load

1) Black hot wire from breaker connects to COM
2) White neutral wire from breaker box connects to Clock
3) White neutral wire to load connects to Clock
4) Black wire to load connects to NO -or- NC screw [one of these screws will have no wire attached]
NO turns 'off' with times set on timer
NC screw turns 'on' with times set on timer
If you want your load to turn 'on' when timer clicks 'on' then connect Black wire to NC screw

B) How to wire t1905 for 240V
You will have four wires >> 2 hot wires from breaker box; and 2 hot wires to load. These wires might be Black and White or Black and Red



1) Black hot wire from breaker connects to COM
2) Red or White hot wire from breaker box connects to Clock
3) Red or White hot wire to load connects to Clock

4) Black hot wire to load connects to NO -or- NC screw [one of these screws will have no wire attached]

NO turns 'off' with times set on timer
NC screw turns 'on' with times set on timer
If you want your load to turn 'on' when timer clicks 'on' then connect black wire to NC screw

Sep 10, 2010 | Intermatic Timer T1905 24 Hour Dial 120V...

1 Answer

I have a 240v plug in with 4 wires ( red and black-hot, white-common, and copper-ground) and on my campbell hausfeld air compressor i have only three wires ( white and black- hot and green-ground) how do i...


First are you sure your compressor is wired for 220. If so \,use the white and black for the hots connected to the black and red in your recptacle. Connect the green to green or bare conductor. The compressor most likely has no 120V devices on it so the neutral is not requied.

Jul 13, 2010 | Campbell Hausfeld Air Tools & Compressors

1 Answer

How do you wire a t103 intermatic timer to 240v


You could wire it to 240V but you will need to move one of the timer motor wires to the neutral conductor. That way the motor would run on 120V. but both circuits could then be connected to terminals 1 and 3. IF you fail to remove the motor wire from terminal 3 then you will burn up the motor. You actually need a T104M for 230V operation
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/t104%20-%20english.ashx

May 23, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

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