Can this contactor be used to provide a remote switch to turn on a water heater (30 amp) or a well pump-- with the 24 volts going to the remote switch
1525008
Yes,we use them for turning ON irrigation pumps in our development. The 40Amp is to take the starting current, when the pump turns on.
1525009
I am not an electrician but what you want it to do makes sense to me.The two lugs would accept the 110V lines and the 24V would connect to the side connectors.Best of luck.
1743501
I have not used the unit, in fact I am returning the two I bought, but to answer your question I talked to two electricians and both said it's better to run the pump from a 24 volt battery system because running the pump without enough volts will damage it.
2111377
Technically yes, as long as its hooked to a soleniod that requires low amperage to actuate. It may also be worth considering the CP7854 Heavy duty Remote Starter Switch
2162528
A contactor of this type is used to turn ON or OFF the 120 or 240 volt circuit of an air cond unit. The contactor tips called the POWER CIRCUIT are rated for 240 volts and up to 40 amps of current. The coil voltage or CONTROL CIRCUIT is 24 volts only. When installing any device of this type which will carry quite a bit of current, (the wires are fairly large and often stiff) you must know to tighten the screws on the connectors once, and then after a couple of minutes recheck tightness. Details like this are important. Also maybe you don't want to rely on push-on connections for serious current loads. Fine for the control circuit, but I like to make a GOOD connection for the power circuit. A contactor of this type is used to turn ON or OFF the 120 or 240 volt circuit of an air cond unit. The contactor tips called the POWER CIRCUIT are rated for 240 volts and up to 40 amps of current. The coil voltage or CONTROL CIRCUIT is 24 volts only. When installing any device of this type which will carry quite a bit of current, (the wires are fairly large and often stiff) you must know to tighten the screws on the connectors once, and then after a couple of minutes recheck tightness. Details like this are important. Also maybe you don't want to rely on push-on connections for serious... » Read More A contactor of this type is used to turn ON or OFF the 120 or 240 volt circuit of an air cond unit. The contactor tips called the POWER CIRCUIT are rated for 240 volts and up to 40 amps of current. The coil voltage or CONTROL CIRCUIT is 24 volts only. When installing any device of this type which will carry quite a bit of current, (the wires are fairly large and often stiff) you must know to tighten the screws on the connectors once, and then after a couple of minutes recheck tightness. Details like this are important. Also maybe you don't want to rely on push-on connections for serious current loads. Fine for the control circuit, but I like to make a GOOD connection for the power circuit. « Show Less
2283429
No, I don't think so. The float switch needs a lot of upward travel to close the circuit. If you have a basement application but don't have a big enough hole for the entire pump, there are very small float switch circuit interrupters that you could use. A small hole in the ground would be required. Good luck.
23851
The input power on this model is 12VDC but the contacts, the switch, is rated for any voltage up to 16A@ 240VAC. It will aslo handle a 12VDC load on the switch though no amperage rating is givien.
955026
This switch is rated to switch 2400 watts of power at 120 Volts. If your water heater has an element that is less than 2400 watts, and runs on a 120 volt circuit, yes you can use this. It is not likely that your water heater meets these requirements. You can, however, use this switch to switch a relay that is rated to turn your water heater on and off. An inexpensive example of this is the Packard C230B. It will switch 220 volts up to 6600 watts and has a 120 volt coil. This is a mechanical contactor. You can also look for a solid state relay that will be quieter and last longer, but cost more. This switch is rated to switch 2400 watts of power at 120 Volts. If your water heater has an element that is less than 2400 watts, and runs on a 120 volt circuit, yes you can use this. It is not likely that your water heater meets these requirements. You can, however, use this switch to switch a relay that is rated to turn your water heater on and off. An inexpensive example of this is the Packard C230B. It will switch 220 volts up to 6600 watts and has a 120 volt coil. This is a mechanical contactor. You can also look for a solid state relay that will be quieter and last longer, but cost... » Read More This switch is rated to switch 2400 watts of power at 120 Volts. If your water heater has an element that is less than 2400 watts, and runs on a 120 volt circuit, yes you can use this. It is not likely that your water heater meets these requirements. You can, however, use this switch to switch a relay that is rated to turn your water heater on and off. An inexpensive example of this is the Packard C230B. It will switch 220 volts up to 6600 watts and has a 120 volt coil. This is a mechanical contactor. You can also look for a solid state relay that will be quieter and last longer, but cost more. « Show Less
57349
I would say that this unit can control anything that is low voltage controlled (ie. solenoid). I don't think it would work as a switch on a 120v pump for example.
927331
Yes, you can use it. The relay is activated by the 24V line so the contacts itself you can use any voltage you want.
727122
The switch will handle from 0 -240 volts.Its the water pressure that activates the contact points inside
1844619
Yes The relay interfaces between the 240 volt circuit and the 24 volt circuit of the thermostat.
541321
yes, but you would need to have a electrician bypass the built in thermostat, this might affect the UL rating and some electricians may be un willing to do it. due to the high amperage load, a line voltage thermostat is not built to switch this heater without a relay and contactor.
2265426
You would need to buy a separate 12v dump valve. For the switch use a momentary toggle on/off/on
559057
yes that's how you get 240 volts. There is a switch inside to run the timer electronics on 120 v or 240 v and you can have it switch one line or the other independently or together for 240 volts. I am using mine to turn on a 240 volt 3/4ph pool pump motor. The CR version is the outdoor model case.
820110
I agree with James, I don't think it would work. The unit is designed to connect a 12V source to a load of some kind. I use mine to turn on/off a fountain pump and a second unit to turn on/off the fountain lights. You might be able to use this unit to open or close a solenoid which in turn could connect/disconnect your "wires" but that would be more complicated to set up.
384674
99.99% of the residential type units made since WW2 use a 24 volt coil so you should be okay. Just remember to shut the power off before you change out the contactor
26385
You can use this timer to control 120 volt coil on contactor... and then use contactor to switch 240 volt load.... this timer requires neutral wire: http://waterheatertimer.org/Install.html#neutral