Jet 5hp ts Wire/Breaker Config

[Jesse King]

Woodworkers,

I am fortunate enough to have obtained the JTAS-10XL-5/1 which is the 5hp 1 phase motor. After briefly looking at the label on the motor it looks as though it will only use 18amps, 230v.

I thought that I would be able to easily wire up a 240v double pole 30 amp breaker using 10/2 cable. This should be sufficient I told myself.

However, just to be on the safe side I figure I would call Jet to see what they recommend. They say the 5HP requires a 60 amp breaker!!! Wow!

My question is -

Anyone who has the 5hp model, what is your wire/breaker configuration.

My plan was to use 30amp locking plugs and receptacles. I don't think I can do that with 60amps... At least I don't see 60amp plugs for sale....

Any suggestions?

Thanks for your help.

Jesse

[Sonny Edmonds]

Jesse,
Well, off the top of my head I'd say they might have been giving you info on a "piss poor" CB set up.
But if you can get ahold of an electrical supply house in your area, (NOT Home Depot) and talk to someone knowledgeable there they can set you up right. Or maybe an electrical contractor if you play them right, thinking they might get work out of the info.
I'd say the 30 amp circuit would be OK with a long thermal delay CB. And You can get a 60 amp plug for it if so needed. Maybe even at HD, as ranges often have these, but not in twist lock configuration. You don't really need a twist-lock anyway.
There's a mirad of plug configurations.

Concider this though:
If Jet recommends a 60 amp CB and you have a problem, say the motor fails. They could come back on you and void the warrenty as you didn't provide the proper supply for it.
Now, I would dought Jet doing that, they seem to be top drawer about their customer support, in the dealings I've had with them.
So since you are setting it up, just do it according to Hoyle to cover your bottom.

Whatcha doin' anyway? Setting up a sawmill? Lordy dat's a biggie motor my man. :D
Hope you enjoy your saw!

Sonny
http://home.earthlink.net/~sonnypie/

[Lou_williams]

If the lable says 18 amps that is the steady state current draw for the motor. You didn't say if if was a capacitive start motor or not. The start up current can be much higher than the steady state current. The slow trip breakers are just for that. One of the other issues is that it is not good to have two high a breaker on a circuil. The breaker is there mostly to keep the supply line safe. If the wiring goes before that breaker that is a fire. If the motor goes before the breaker that is a new motor. It makes sence to have a breaker go before the motor. If it were me I would go with your plan for a 30 amp breaker but make it a slow blow so that it doesn't pop all the time on startup.

Lou

And Sunny, 5 hp is a real mans motor. With that much power even Tim Allen would be impressed.

[dicklaxt]

Hey guys something sounds fishy here.......rule of thumb is 10 to 12 amps per Horsepower for single phase 115/120 volt induction motors, that would make Jet correct at 6o amps better do your home work on that motor and/or nameplate and find out what you really have,18 amp would equate to 1 1/2 HP.

Waiting for chapter 2

Dick

[dicklaxt]

Hey guys something sounds fishy here.......rule of thumb is 10 to 12 amps per Horsepower for single phase 115/120 volt induction motors, that would make Jet correct at 6o amps better do your home work on that motor and/or nameplate and find out what you really have,18 amp would equate to 1 1/2 HP.

Waiting for chapter 2

Dick

[dicklaxt]

Hey guys something sounds fishy here.......rule of thumb is 10 to 12 amps per Horsepower for single phase 115/120 volt induction motors, that would make Jet correct at 6o amps better do your home work on that motor and/or nameplate and find out what you really have,18 amp would equate to 1 1/2 HP.

Waiting for chapter 2

Dick

[dicklaxt]

Hey guys something sounds fishy here.......rule of thumb is 10 to 12 amps per Horsepower for single phase 115/120 volt induction motors, that would make Jet correct at 6o amps better do your home work on that motor and/or nameplate and find out what you really have,18 amp would equate to 1 1/2 HP.

Waiting for chapter 2

Dick

[dicklaxt]

Dick

[dicklaxt]

After further thought i'll bet the 1 and the decimal didn't print and you really have a 1 1/2 Hp, that would make the 18 amps correct.

Dick

[Jesse King]

Here is more info from the label on the motor and the magnetic switch.


Output 5HP KW (blank)
HZ 60 Pole 2
Volt 230 Heat 60c
Amp 18 Class E
RPM 3450 Date 2000/9
Phase 1

On the Switch
Coil Voltage 230 50-60hz
Ol Relay 22a 5HP

So I'm thinking a 30amp slow blow with 10/2 should do it?

Thanks!

[MadMark]

According to my Ugly's Electrical References (ISBN 0-9623229-5-4) a 5 HP, single phase motor's full load current is 60A on a 115VAC line and 30A on 230VAC. Footnote says that 115 and 230 are nominal and cover 110-120VAC and 220-240VAC respectively.

Ampacity rating for #10 is 30A with an asterisk stating that overcurrent protection (the breaker) shall not exceed 30A for #10 copper.

Outlet should generally be 10-30R, 3-wire or if you prefer L10-30R for the twist lock type.

[Jesse King]

Ding Ding Ding! You are the winner.

Thanks Mad Mark. That was very helpful.

We should find a suttle way to inform Jet tech people.

Sounds like an excellent reference, I may have to pick it up.


Jesse

[dicklaxt]

Where did I get that it was 120 volt my error 30 amp will
be just fine...........

[dicklaxt]

ONe other thing run a 10/2 with ground or a 10/3and dedicate the white as ground. I t usually come red,white ,black.

BTW what is the brand of that motor, at 18 amps it is delivering 5 HP..... that is very efficient the norm would be 25 to 30.
Dick

[dicklaxt]

Went back and looked at yournameplate again SLOW BLOW will not buy you any thing the thermal overload is 22 amps per nameplate#####