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What is the purpose of a double pole switch for immersion heater?
Wiki User
∙ 11y ago
In North America both legs of the 240 volt supply are "hot" to ground. A two pole switch is used to break both legs from the supply. If only a single pole switch is used one leg will open and the tank would not operate but if you were depending on the switch to isolate the supply it could be dangerous. The other leg could lead to a shock if you touched the unswitched leg to ground while working on the tank.
Wiki User
∙ 11y ago
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What does the abbreviation DPDT stands for what type of switch?
A DPDT switch is a Double Pole Double Throw switch
Adding a 240 volt 20amp electric heater in my crawl space Would like to use my 20 amp circuit for outside condenser Both would never be on at the same time Do they make a switch for this?
Yes, what you are looking for is a double pole double throw switch. The center lugs are connected to the incoming line. Then the top lugs could be connected to the electric heater and the bottom lugs connected to the condenser. The trouble lies in finding a switch with a rating of 20 amps. These types of switches are usually used with a stand-by generator and rated at 100A and greater. Think I remember seeing one at 60A once. You might want to think of using a DPDT relay rated at 30A with a 120 volt coil. With a switch to operate it the relay. Depends in what part of the country you live, long winters switch off for heater, long summers switch off for conderser.
What is the difference between iron clad double pole switch and double pole single throw switch?
Answer for USA, Canada and countries running a 60 Hz supply service.The difference between a double pole switch and a single pole switch is the use of the switch in the installation or equipment. A double pole switch is used when the voltage from two circuits has to be broken. An example of this is a 240 volt supply. A single pole switch is used where there is only a single supply voltage that has to be broken.
What is the necessity of the starter.Can a single pole switch replace it?
A motor starter usually has an overload heater incorporated into it. A single pole switch does not have that type of protection. There are many brands of fractional motor starter switches. These types of switches are sized by the motors full load amperage. These types are dual purpose being that they can be used as the motors isolation switch and also they can be used as motor protection for the connected motor.
Can a single pole switch replaced starter?
If you are talking about motor control then the answer is yes. There are two things to take into account though. One, is the motor thermally protected. This is for overload protection. On fractional HP motors it will indicate this on the nameplate. If the motor is not protected, then a fractional HP motor switch should be used. Incorporated into this switch is a heater element that the motor current flows through. If the motor current gets over the motor nameplate rating then the heater trips the switch and shuts the motor off. The other thing is that the switch has to be motor rated, currents and voltage matching the motor nameplate ratings. The specific switch has been designed to open motor currents under full motor loads. An ordinary house light switch is not motor load rated and should not be used for this purpose.
What is the purpose of the 90987-04002 relay for Toyota?
Fan (heater/air conditioning) relay switch
If there is power to the off switch for the heater is the switch gone?
If you are talking about a wall switch for the heater, check to see if the heater has its own internal thermostat or switch as this might be in the off position and not allow the heater to turn on. If you are talking about a switch on the heater itself, then yes in all probability the switch is not working.
Where is heater relay switch on 2001 Ford Expedition?
Where is heater control switch
Where is the heater relay switch on a 2005 Malibu max?
Where is the heater relay switch on a 2005 MalibuRead more: Where_is_the_heater_relay_switc
Isuzu trooper seat heater switch?
IT turns the heater on and off!
Why is your fan heater control switch is permanently on full even though the switch is on off?
It could be the high speed heater motor relay is stuck on or the switch itself is broken.
Why would heater only blow hot air when you turn the temp switch down Replaced temp switch and still does it?
A restricted/plugged heater core can do that. Try flushing the heater core.
Why will the heater in a 1996 Grand Am with 4 pos heater switch not work on HIGH but it works in all 3 other positions?
Your heater switch may not need to be replaced. The heater high position is controlled by a fuse under the hood. Until you find the fuse and replace it, your new switch will not work. JRR.
Why does your heater fan stay on your 1995 Concorde?
The reason a heater fan is staying on may be an issue with the switch. It is possible the switch is stuck open. It may be resolved with a good cleaning of the contacts on the switch, or replacing the switch itself.
Your heater stays on hot continuously any ideas?
replace the heater temperature switch
Heater fan works sometimes?
Not knowing what year, make and model you have, I would suspect the heater fan switch and or electrical plug to the switch is at fault.
How can you change heater control switch for a Hyundai?
Remove the heater control switch decorative cover. Remove the retaining screws. Remove the wiring harness. Reverse the process to install the new switch.
