My question though is why doesn t it short out on a single pole.
Wiring single pole thermostat 240v heater.
Thomas with cadet s tech support department shows you how to install a single pole wall thermostat on a 240 volt cadet electric baseboard heater.
The wiring connection for both single phase 120v and 240v are same i e.
So this has been bugging me for a while and i ve tried searching on the net but all it keeps giving me are wiring diagrams and i know how to hook up a 240v to a single pole thermostat and know the difference of hooking it up on a single pole vs a double pole.
Single pole thermostats are sometimes known as two wire thermostats while double pole thermostats are called four wire some thermostats can be wired in either fashion.
Electric baseboard heaters are good for spot heating areas of your house that central hvac does not reach.
When wiring a 240 volt heater a double pole thermostat should be used.
The line is connected to the l 1 terminal while neutral or second line is connected to the l 3 terminal.
One is red and one is black.
Single pole and double pole thermostats are commonly used for baseboard heating.
Connect the remaining thermostat wire typically marked t1 or load to the same color supply wire feeding the baseboard heater.
Either can be used as a line voltage thermostat controlling one or more 220 volt heaters.
A 240 volt thermostat doesn t use neutral wires and as such all wires are hot.
Screw on a wire nut in a counter clockwise direction until the wire nut is secure.
A double pole thermostat is designed to shut off power to both the 120 volt wires when the heater is turned off preventing the thermostat from burning up.
Make certain you do not find the heater beneath a current wall outlet.
Tape the wire nut to the wires with electrical tape.
Using a wire connector connect the hot supply wire to the thermostat wires.
Wiring a 240v baseboard heater may be the images we located online from trustworthy resources.
Black color is neutral while red is phase or line and the yellow green wire is used for ground earth.
Take the red thermostat wire and connect it to the black wire from the electrical supply cable.
The water heater element is connected to the thermostat via t 2 as hot and l 4 as neutral.
Line voltage thermostats for 240 volt heaters come in two types.
If you are going to put in a baseboard heater make the thermostat set up the best you can by separating it from the heater body this provides more accurate temperature gauging plus it makes it easier for users to access the thermostat.
Take the single pole thermostat and notice the two wires.
Typically this is marked l1 or line step 8.
From the outside of the box they might look the same but double pole thermostats provide an inherent safety feature that single pole thermostats do not because single pole.