High voltage plugs/inlets question

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Budzu

Budzu

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Alright continuing the series of "What do I do now with this" threads as I build my electric rig. My current question is Grounding vs. non-grounding outlets/inlets/plugs.
Here's my idea for connections for my keggles: http://www.twacomm.com/catalog/model_2625F.htm?sid=EA154310C3C70454A620A8C6FA37ADEB
http://www.twacomm.com/catalog/model_2673.htm?sid=EA154310C3C70454A620A8C6FA37ADEB
The male inlet will be mounted on the keggle in a gang box.

Am I correct in assuming the keggle side outlet needs "grounding" and that the power feeding female plug can be non-grounding? I'm just unclear on what that means. Both components have 2 pole 3 wire. I'm no electrician and no matter how much I read up there's always something to learn.

Thank you in advance
 
Budzu said:
Alright continuing the series of "What do I do now with this" threads as I build my electric rig. My current question is Grounding vs. non-grounding outlets/inlets/plugs.
Here's my idea for connections for my keggles: http://www.twacomm.com/catalog/model_2625F.htm?sid=EA154310C3C70454A620A8C6FA37ADEB
http://www.twacomm.com/catalog/model_2673.htm?sid=EA154310C3C70454A620A8C6FA37ADEB
The male inlet will be mounted on the keggle in a gang box.

Am I correct in assuming the keggle side outlet needs "grounding" and that the power feeding female plug can be non-grounding? I'm just unclear on what that means. Both components have 2 pole 3 wire. I'm no electrician and no matter how much I read up there's always something to learn.

Thank you in advance
Click to expand...

Hi!
New to the board so I'm not sure what your rig looks like?

If you are using single phase 240V. There are only two hot wires. Both read 120 volts to ground, and 240 volts across the two feeds. If you do not install an equipment ground, and one of those wires touch metal or get wet, then you touch the metal, you become the earth ground and can receive 120 volts through your body.

If you are using a heating element, your two hot leads go to each of the terminals of the element. You need to secure the ground wire on the metal housing of the element, or if a metal vessel is used, take a ta-2 lug and bolt that to the keggle, then secure the ground wire to the lug. That way if any hot conductor is to touch the base it trips the breaker.
 
to answer the question in full, YES.. both sides of the plugged circuit need to be "grounded"= Bonding of all metal parts.In this case the equipment ground=brewery and that ground needs to go back to the circuit breaker panel. If you are using a 240vac gfci you still need that bonding ground installed.
 
Thanks for the replies!

OLDBREW said:
If you are using a heating element, your two hot leads go to each of the terminals of the element. You need to secure the ground wire on the metal housing of the element, or if a metal vessel is used, take a ta-2 lug and bolt that to the keggle, then secure the ground wire to the lug. That way if any hot conductor is to touch the base it trips the breaker.
Click to expand...

Yes I plan to have the ground wire connected to the keggle body, then run all the way to join the ground in my subpanel. GFCI breaker will be in the subpanel or main breaker box.

lazybean said:
That plug you linked is for a 3 phase system. are you looking at using 110/220 or just 220v power?

For 110/220v with ground.
For 220v (only) with ground.

You have to have matching male and female plugs. Look for the NEMA type. EG: NEMA L6-30P(male) goes into a NEMA L6-30R (female)
Click to expand...

Ah gotcha. I will be only using these line for the full 240v. So 3 wire is all I will need. And I'm wanting female plugs to ensure that I can not touch a potentially hot male plug.
So how about these? Also, anybody know a good cheaper source for these connectors?
http://www.twacomm.com/catalog/dept_id_1001/model_C2623.htm?sid=EA154310C3C70454A620A8C6FA37ADEB
http://www.twacomm.com/catalog/model_2625F.htm?sid=EA154310C3C70454A620A8C6FA37ADEB

Thanks again, cheers!
 
the first link in your original post was for 2 pole 240v 3 wire apps.

That is for a 30amp 240vac twistlock single phase application

single phase is 2 hot wires and one ground. residential services

You wont see three phase in residential wiring
commercial/industrial apps use three phase
 
Budzu said:
Thanks for the replies!
Ah gotcha. I will be only using these line for the full 240v. So 3 wire is all I will need. And I'm wanting female plugs to ensure that I can not touch a potentially hot male plug.
So how about these? Also, anybody know a good cheaper source for these connectors?
http://www.twacomm.com/catalog/dept_id_1001/model_C2623.htm?sid=EA154310C3C70454A620A8C6FA37ADEB
http://www.twacomm.com/catalog/model_2625F.htm?sid=EA154310C3C70454A620A8C6FA37ADEB

Thanks again, cheers!
Click to expand...

Those would be ideal from what you have said. The L6-30R connector will be your supply(hot), and the L6-30P will be your load. That inlet you linked is for flush mounting in an enclosure, you drill a 2" hole and the Inlet mounts through that hole. Make sure your enclosure is deep enough for it too, 2" plus room for the wires to come out the back.
 
I'm bringing this thread back up as I've just acquired all the breakers and wiring equipment to run my subpanel. The power to my brew system will be supplied from a Siemens 60 amp GFI breaker, which is situated in a 125 amp lug panel. I will run all the system power, including 120v, from this source.

I now need outlets and wiring. From the 60 amp gfi breaker, I will run 6 gauge copper to this outlet: http://www.levitonproducts.com/catalog/dept_id_985/model_9460.htm The power needs for this outlet are:
1 5500 watt 240v element
1 24vac transformer (panel switches)
1 12vdc transformer (brewtroller power supply)
2 march pumps

Before I pull the trigger on these components, does anyone see anything wrong with this application? Will the GFI be able to function properly while supplying both voltages?

Thanks so much in advance and cheers
 
Budzu said:
I'm bringing this thread back up as I've just acquired all the breakers and wiring equipment to run my subpanel. The power to my brew system will be supplied from a Siemens 60 amp GFI breaker, which is situated in a 125 amp lug panel. I will run all the system power, including 120v, from this source.

I now need outlets and wiring. From the 60 amp gfi breaker, I will run 6 gauge copper to this outlet: http://www.levitonproducts.com/catalog/dept_id_985/model_9460.htm The power needs for this outlet are:
1 5500 watt 240v element
1 24vac transformer (panel switches)
1 12vdc transformer (brewtroller power supply)
2 march pumps

Before I pull the trigger on these components, does anyone see anything wrong with this application? Will the GFI be able to function properly while supplying both voltages?

Thanks so much in advance and cheers
Click to expand...

75% of the service is being used by the elements and your transformers will be negligible, Plus the pumps and I think you are good for the service. Yes, the GFCI will be able to supply split voltages, just remember to run #6 3-1. Be fore warned, March pumps don't always play well with GFCIs. Some seem to leak a bit of current to the chassis causing it to trip.
 
Thanks CR

So you mean running both elements at once is ok with 60 amp service? I was debating that, since its so close to its limit. I will have two elements but its no problem to wire in a DPDT as a selector switch for supplying current to only one element at a time. But running both would make strike water heating alot faster.
 
Both elements running at the same time you are pulling a little over 45 amps. You're even under the magic NEC 85% 3 hour continuous load rule.

Man, you will heat some strike water up FAST with 11kW on a 5 or 10 gallon system. One element would be plenty IMHO. My 4500W elements gets 7 gallons up to strike temp in about 10 minutes or so. I would use one 5500W in my BK and 5500W in my HLT. You can throw that out the window if you are doing large volumes though.
 
Its a 3 keggle system with elements as you said in the BK and HLT. I'll be doing 11-12 gallon batches. I am very glad to hear about those heating times!
 

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