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Kevin, Licensed Electrical Contractor
Category: Electrical
Satisfied Customers: 3588
Experience:  30 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License
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steam shower

This answer was rated:

I purchased a steam shower from through ebay. ( It seems that the installation instructions for the steam generator are applicable to Europe as they indicate the use of an isolated fused spur ( I am wondering what the correct installation for this unit would be?  AN image of the power cables for the unit are shown in this link ( Would wiring a plug be appropriate? I'm hoping for a detailed answer to the correct installation..thanks in advance. name is XXXXX XXXXX I will be happy to assist you with your electrical question. My goal is to exceed your expectations on Just Answer!


1) Yes, you are correct, it does appear that the installation instructions were geared towards a European install. The electrical installation instructions are not written very well, that's for sure.


2) The electrical spec's are as follows:


Electrical Specification:

  • Supply power - 110 V +- 10% (USA & Canada)
  • Power frequency - 50Hz/60Hz
  • Control voltage - 12 V
  • Limit power - 3KW
  • Light voltage - 12 V
  • Fan Voltage - 12 V
  • Radio output power - 5 W


To confirm the required amperage, apply Watts Law where P = I x E, P = Watts, I= amperage and E = volts, 3000W = I x 120 Volts = 25 amps.


The calculated 25 amps is identical to the FAQ electrical portion.


3) The FAQ's also mention to use an RCD which is the European equivalent to our GFCI. RCD = Residual Current Device. GFCI = Ground Fault Circuit Interrupter.


4) Therefore, you will require a 30 amp single pole GFCI circuit breaker. This type of breaker is not very common and is not sold at Home Depot or Lowe's. You will most likely need to order this type of breaker from your local electrical supply store. Provide the electrical store with the manufacturer of your main electrical panel to determine compatibility.


Refer to the link below for an example picture of a 30 amp GFCI Single Pole breaker:!products/specificid!2044


5) For a means of disconnect, I would recommend to wire the unit using a 30 amp Single Pole ON/OFF switch as shown in the link below:


Same as the GFCI breaker, you will not find a 30 amp Single Pole Single Throw ON/OFF switch at your local Home Depot or Lowe's. You will need to purchase this switch through your local electrical supply store.


6) Since the breaker will be a 30 amp device, you can use 10/2 Romex with a ground. The white neutral from the Romex will land on the neutral screw terminal at the breaker. The curled white pigtail neutral wire on the breaker will land on your main neutral bus bar. The black hot wire from the 10/2 Romex will land on the breaker. The unit will require a dedicated 30 amp, 120 volt circuit from your main electrical panel.


6A) The white neutral wire from the 10/2 Romex will splice into the blue wire on the unit. The black hot wire from the 10/2 Romex will splice into the brown wire on the unit. The bare copper ground wire from your 10/2 Romex will splice onto the unit's yellow ground wire.


7) The black hot wire originating from the GFCI breaker will land on the bottom screw terminal of the 30 amp switch. You will run another 10/2 Romex with ground out of the switch and connect this to the top switch screw terminal. This will be your switched loop connection. The black Romex wire (switched loop) will connect to the unit's brown wire. At the wall switch box, splice the 2 white neutral wires together and do not connect these to the switch. Only the hot feed and the hot switched loop land on the switch.


8) Suggest installing the 30 Amp SPST switch in a deep 4" x 4" metal wall box using a 1/2" single gang plaster ring. Install the SPST wall switch inside the bathroom area, possibly near your existing lighting, fan switches?


Let me know if you are OK with these instructions. Reply back to me with any questions.





Hope this helps.........If you have any additional questions, let me know and I'll be glad to answer them for you.


Otherwise, don't forget to rate me before you log Off.

The next time you have an electrical question, you can also request for me at:

1) The bare copper ground wire from the 10/2 Romex should land on an Equipment Ground Bar inside the main electrical panel. If your panel does not have one of these, I would recommend to install a separate equipment grounding bar inside the electrical panel. The pic below is an example of an equipment grounding bar. These come in various sizes. These are readily available at any Home Depot, Lowe's or local electrical supply store.

Square D by Schneider Electric 23 Terminal Load Center Ground Bar Kit

Kevin and 2 other Electrical Specialists are ready to help you

Kevin...........thanks for the excellent service rating as well as the bonus..........much appreciated!


If you have any other questions, just let me know.


Take care and have a great evening............Thanks................Kevin!

Customer: replied 4 years ago.

Your answer was terrific...just what I was looking for. I did send a reply asking about the junction box for splicing 10/2 romex and unit's power cables, and tips for splicing romex with power cable eyehole type of ending, but I'm guessing you may not have received it. Thanks again for the help.

1) Thanks for the kind words Kevin... glad I was able to assist.


2) No, I did not receive your reply regarding the junction box. What is your question?

Customer: replied 4 years ago.

I was just wondering if there was a specific type of junction box that you would recommend. And also was wondering if the eyehole type of ending on the power cable would make it difficult to splice with the 10/2 Romex.

1) Due to the size of 10/2 Romex plus the bare copper ground wire, I would suggest using a deep 4" x 4" metal junction box with 1/2" Knockouts for the Romex box connectors. If using a junction box, you will also require a 4" x 4" metal blank cover.


Refer to the link below: You can purchase these at your local Home Depot, Lowe's ,Ace Hardware or any electrical supply store.


2) For splicing the 10/2 Romex onto the unit's power cable, you will not require the attached eyelet connectors. Just cut off the eyelet connectors and splice the wires together using a pair of lineman's pliers or regular pliers. Then twist the wires accordingly using a tan colored plastic wire-nut. Make sure the wire nuts are secured and properly twisted onto the splices in order to provide a good connection.


3) I also forgot to mention the ground on the switch. Make (2) two 6" pigtails using either bare copper or green wire and splice the Romex bare copper to the 2 pigtails. Then install a green grounding screw located at the rear of the wall switch box. Land 1 pigtail on the green screw and the 2nd pigtail to the green ground screw located on the switch. The 2 pigtails also need to be 10 AWG wire, same size wire as the hot and neutral conductors.



Customer: replied 4 years ago.

Thanks again for the thorough help. I really do appreciate it. I'll look for you if I have any other questions in the future.

1) Thanks Kevin..............The next time you have an electrical question, you can also request for me at:


2) I'm usually logged on to the JA site during late afternoons and evenings and ON/OFF most weekends.


3) Take care and we'll talk at you later sir!

Customer: replied 4 years ago.


Hello Kevin.... how are you doing? Hope all is well.


1) The only thing that you can do to request me is to use my link:


2) You can also include my name in the Question Title. If a customer requests a certain expert via the link I provided, what happens is that the question will only be reserved for that expert for a 15 minute time period. If the expert is not logged onto the JA website and the 15 minute time period expires, any other expert logged on here can take the question and answer it. Although, if you include the name of the expert in the title, many other experts will let the question remain in queue and not take the question and will wait for the requested expert to log onto the site.

Customer: replied 4 years ago.

Everything is great, thanks

Ok, I'll try now.

1) Very good..... I'll be logged in here for awhile......Thanks Kevin

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