Hi Guys - since my project is a residential duplex and not a single family dwelling I think I need a 680.41 E-Stop. I'm thinking a switch is the easiest but I was wondering if I could use a momentary push button to trip the GFCI....this is probably a bad idea.....I just thought a pushbutton would be easier in an emergency.
E-Stop wiring for a package Hot Tub in Residential Duplex
- Thread starter clarice
- Start date
- Status
- Location
- Massachusetts
Is the hot tub available for both tenants or is it inside one of the units?
And no you cannot use a GFCI as a disconnecting means unless it is listed for that use.
I would look to just kill the control circuit for the motor that runs the recirculating pump.
And no you cannot use a GFCI as a disconnecting means unless it is listed for that use.
I would look to just kill the control circuit for the motor that runs the recirculating pump.
Duplex Hot Tub
Duplex Hot Tub
The Hot Tub is outside. The intended use is for one family (it is on their deck) but there it is open to the other unit.
The material house sent me a pushbutton E-stop with one normally closed terminal and one normally opened....I was trying to figure out how to use it in this situation. I have a 2 pole 50 amp feed on #6......I guess this stop is intended for a contactor....But
Duplex Hot Tub
The Hot Tub is outside. The intended use is for one family (it is on their deck) but there it is open to the other unit.
The material house sent me a pushbutton E-stop with one normally closed terminal and one normally opened....I was trying to figure out how to use it in this situation. I have a 2 pole 50 amp feed on #6......I guess this stop is intended for a contactor....But
the property being fenced does not mean the spa is fenced in, notice in an apartment complex there is a secondary fence around the pool. You can not assume a neighbors child will not have access to it.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I think you probably need a contactor to shut it down with an E-stop unless you can interrupt the cir. that feed the jets & recirculating pump.
Interupt the circuit without a contactor?
Interupt the circuit without a contactor?
Can my e stop interupt the circuit on the control board? I have 4 terminals on the e-stop: 2 for the N/C side and 2 for the N/O side.....the conduit from the e-stop box goes to the control panel of the Hot Tub. Can you tell me in general what I should do? I'm thinking control wires that go from my momentary switch (e-stop)....in the un-pushed position one terminal set is closed....when pushed it is the opposite until released.....
This is probably obvious but I need the basics!!!!!
Interupt the circuit without a contactor?
Can my e stop interupt the circuit on the control board? I have 4 terminals on the e-stop: 2 for the N/C side and 2 for the N/O side.....the conduit from the e-stop box goes to the control panel of the Hot Tub. Can you tell me in general what I should do? I'm thinking control wires that go from my momentary switch (e-stop)....in the un-pushed position one terminal set is closed....when pushed it is the opposite until released.....
This is probably obvious but I need the basics!!!!!
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
It can interrupt anything that will cut the flow of electricity to the pump and blower. I am really not sure that the emo button cannot just trip the GFCI.
- Location
- Massachusetts
Dennis, are there usually relays or contactors that pull those motors on?
clarice, if Dennis answers yes a maintained contact mushroom-head button that opens the control circuit (the power to the relay coils) should be quick and easy.
I would be very interested in how that could be legally wired.
Another option is a shunt trip breaker on the feeder.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I haven't wired one in a while where I had been inside the box. My recollection is that everything was electronic with boards etc. I don't remember seeing relays.
I was thinking you could run the neutral thru the emo and short it to ground??? Why would that not be legal.
I was thinking you could run the neutral thru the emo and short it to ground??? Why would that not be legal.
- Location
- Massachusetts
First I would not consider that a reliable method to open the circuit. A ground to neutral connection will not always trip a GFCI.
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
But maybe a resistor thru the EGG button from the hot to ground would.
The only other way would be a simple contactor and a start stop type circuit, or as mention a shunt trip.
But why use the push button? the code does not require it, all that is needed is a disconnect within sight located no closer then 5' away?
Use a pull out type and save cost.
Or use a spa packaged one with the GFCI in it, and just keep it within sight, then you will already have the GFCI breaker.
- Location
- Massachusetts
If I was inspecting it I would cite 110.3(B).
That is up in the air if it is in a shared common area of two units.
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
I have seen a hot tub that had terminals labeled for EMG cut off, to be wired to just an on/off switch, it had a jumper in place that you would remove.
But remember most hot tubs will power back up if power is removed and then restored, they do this for the cold areas where the tub has to maintain the water temperature to prevent it from freezing, encase power is lost while the home owners is away on vacation.
The above is also one of the most likely reasons for heater element failure, when a home owner empties the hot tub to clean it, then restores power before it is filled back up with water, very big mistake.
But remember most hot tubs will power back up if power is removed and then restored, they do this for the cold areas where the tub has to maintain the water temperature to prevent it from freezing, encase power is lost while the home owners is away on vacation.
The above is also one of the most likely reasons for heater element failure, when a home owner empties the hot tub to clean it, then restores power before it is filled back up with water, very big mistake.
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
- Status