The question depends entirely on the size of the heaters and the size of the wire used.
Select your breaker size and wire gauge according to the wattage. To determine your amperage, divide your power in watts by your voltage. If the voltage is 100 volts and your wattage is 1000 watts, then the amperage draw = 1000 Watts / 100 volts = 10 amps
If you intend to control a number of heaters, a relay may also be used. The thermostat turns on the relay, the relay controls the heaters. Thermostats are rated for current and voltage. Make sure you are also using a thermostat big enough for your circuit.
Usually only one heater can be operated on a 15 amp branch circuit.
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In North America the total wattage from a two pole 15 amp breaker is Watts = Amps x Volts = 15 x 240 = 3600 watts. Baseboard heaters are considered a continuous load so the circuit can only be loaded to 80% capacity. 3600 x 80% = 2880 watts. So to answer the question, up to 2880 watts can be loaded on to a circuit fed from a two pole 15 amp breaker.
Add up the wattage of each unit. If they are 120v units, when you get to 1920 watts, that's your answer. If they are 240v units, when you get to 3840 watts, that's your answer.
2 x 1000 watts
Since baseboard heaters come in many different wattages vs. lengths I guess the best answer would be, you can load up to 2880 watts of baseboard heaters on a 15 amp two pole breaker at 240 volts.
Answer for USA, Canada and countries running a 60 Hertz supply service.The thing to consider here is the current rating of the baseboard heater. If the baseboard heater is 240 volt then yes you would need to use a two pole breaker. If you are using just one heater on the circuit, the current rating of the heater is low enough that you could use a two pole breaker rated at 15 amps and copper wire rated at #14 . The rating of the thermostat is the maximum that the stat will handle safely. With the combination you suggest you could run a total of 3800 watts of baseboard heaters. In amps this would be 16 and well within the rating of the stat.
If the power requirement is 120 volts it will be connected to a single pole breaker rated at the amperage requirement of the air conditioner. If the voltage of the air conditioner is 240 volts, then a two pole breaker will be required.
Use of a double pole breaker or a single pole breaker depends entirely on the application. If you don't know about the application, contact a qualified electrician in your area.
Assuming a 120V circuit then a 30A Single Pole. For a 240V circuit an 30A two pole. Of course anything smaller that a 30A is acceptable. 30A is the maximum allowed.
Since baseboard heaters come in many different wattages vs. lengths I guess the best answer would be, you can load up to 2880 watts of baseboard heaters on a 15 amp two pole breaker at 240 volts.
Go to your power panel and look for two pole breakers. If there are any 20 amp two pole breakers there is a good chance that they are for the baseboard heaters. Switch this breaker off and turn your thermostat up. If the baseboard heaters do not come on and get hot then this is the supply for them. A two pole breaker is supplying 240 volts to the heaters. Most likely there will be more that one heater on the circuit. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Answer for USA, Canada and countries running a 60 Hertz supply service.The thing to consider here is the current rating of the baseboard heater. If the baseboard heater is 240 volt then yes you would need to use a two pole breaker. If you are using just one heater on the circuit, the current rating of the heater is low enough that you could use a two pole breaker rated at 15 amps and copper wire rated at #14 . The rating of the thermostat is the maximum that the stat will handle safely. With the combination you suggest you could run a total of 3800 watts of baseboard heaters. In amps this would be 16 and well within the rating of the stat.
If the power requirement is 120 volts it will be connected to a single pole breaker rated at the amperage requirement of the air conditioner. If the voltage of the air conditioner is 240 volts, then a two pole breaker will be required.
All three, on 110V a split receptacle, on 220V a baseboard heater, on 440V a construction heater or similar resistive load.
Use of a double pole breaker or a single pole breaker depends entirely on the application. If you don't know about the application, contact a qualified electrician in your area.
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Assuming a 120V circuit then a 30A Single Pole. For a 240V circuit an 30A two pole. Of course anything smaller that a 30A is acceptable. 30A is the maximum allowed.
This is wiring 2 baseboard heaters with a double pole wall thermostat you run the power wire to the thermostat on the wall then you run a wire to the 1st heater and then you run another wire from the 1st heater to the 2nd heater and hook red on red and black on black with wiring mariette's in the heaters junction box on left or right side which ever is more suitable for you and then you go to the wall thermostat and hook red on red and black on black with the wiring mariette's and then you hook your power wire to the power supply which is 100 or 200 amp service and on a double 20 breaker and the wire has to be no smaller than 12/2 wire. also do not forget to hook the ground wire (bare copper) on the green screw on your heater and in the thermostat box and then on the power supply box..... now you can turn up your thermostat and enjoy the heat ...........LEE48
2800 watts at 240 volts would give you the 80 percent derated ampacity. <<>> Without a voltage voltage being stated, an answer can not be given. Electric heaters are sized by wattage and are used on many different voltages. Wattage is the product of amps times volts. So as you can see without the voltage the question can not be answered.
I = W/E. 1500/240 = 6 amps for each heater. In parallel the total connected load will be 12 amps. A #14 conductor is rated at 15 amps and de rated to 80% can carry 12 amps continuous. The breaker needed for this would be a two pole 15 amp breaker. If this is a new installation I would use a #12 conductor for the two heaters on a two pole 20 amp breaker. The conductors will run much cooler using a larger size.
The term "double pole" usually means a breaker with 2 handles that attaches in the space as a normal single pole breaker. If this is what you mean, no, you cannot. There is no potential, or voltage, between the wire terminals. If by "double pole" you mean what is usually called a 2-pole breaker, which is a breaker with 2 handles that attaches in the space of 2 single pole breakers, then yes, you can use this breaker and 12/2 wire to produce a 220v circuit.