One word: KABOOM.
It would be better if you got a transformer and stepped up the voltage.
Yes, you need a transformer
Its on the specifications of the device you will plug
Well, maybe. What is the current rating on the spa circuit? What is the current rating on the welder? If the welder is larger than the outlet, then no. It must be the other way around. If the current ratings are OK, then yes. Your welder doesn't need 110V so it doesn't connext to neutral. Connect the hot leads to hot and ground to ground.
no
The coil can be operated by taking one leg of the 240 volts from the top of the contactor and connecting it to one terminal of the coil. Take the other leg of the 240 volts from the top of the contactor and connect it to the device used to turn the contactor off and on. From this switching device take the switched wire and connect it to the other terminal on the contactor's coil. Now when the switching device is activated the contactor will open and close.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-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Using a box that is hire voltage than what you need can cause a short, and even a fire. So using a 240V box, when all you need is a 110v receptacle, wouldn't be a good idea.
One word: KABOOM.
with wires
No
It would be better if you got a transformer and stepped up the voltage.
No. If the heaters are designed for 220V they cannot fun off of 110V. Also running a 1500W heater off of 110V would require a dedicated circuit. So four 1500W heaters would require 4 dedicated 110V circuits.
Yes, you need a transformer
Motor started will have overloads the contactor connect es line voltage.
No India uses 240V at 50Hz the U.S. uses 110V at 60Hz.
No. Sounds like a fairly hazardous thing to try as well. If it's to use a heater in the US, then buy a US heater at a lower cost than any adaptor that might do the job for you. If it's to use on a UK building site that has 110V but doesn't have 240V, it breaks all the rules because you end up with 240V where you shouldn't.