I am installing a 220v line in anticipation of installing my 4 post Bend Pak lift. BendPak says I need a 25 amp circuit breaker. I used 10 2 wire and local code says we need a switch. The only issue is I can find a 20 amp and a 30 amp circuit breaker but not a 25amp. So do I use a 20 or a 30?
Circuit breaker for 4 post lift
- Thread starter Theruse
- Start date
kabinenroller
Well-known member
Use a 30 amp breaker. Most codes have a percentage of amps that the breaker must exceed the max. Amp draw of the load. I have a 30 for my BendPak, no issues at all.
wyliesdiesels
Well-known member
Use a 30a. Code allows the use of the next standard size breaker...
Just out of curiosity, what brand of panel do you have??, 25 amp and 35 amp breakers are starting to be carried by the supply houses, mainly for air condition units, they will have the "Max Fuse or Cir Brkr Size= on the name plate, inspectors are enforcing it closer now.
Aceman
Well-known member
A 25 amp breaker is a standard size, which code says you can round up from that when Bendpak specified it?
wyliesdiesels
Well-known member
Looking at NEC 240.6a, I stand corrected. I dont think Ive ever seen or used a 25a breaker but a search at home depot reveals they do have them!
Scratch my previous comment!
Use a 25a!
This is why u dont comment when youre half awake!
Supply houses around here carry them, HD and Lowes you usually have to have them shipped to the store
Go get some rest
sberry
Banned
Where are the electric specs for these? 25 may be when the minimum wire size is used. May be worth a read of the instruction manual.
tdkkart
Well-known member
So, if I'm plugging in a 100W light bulb, or my TV that draws 96W, do I have to use a 1A breaker??
And yes, WTF is BendPak using for a motor on their pumps??
25A at 220v is a **** load of power. My "real" 3HP compressor motor only draws 17A at 220V.
sberry
Banned
I believe all this is made and wrote in China. The Mohawk pretty much refers to the motor, there is a tag on mine, allows 14 wire to 30A
pattenp
Well-known member
My Challenger lift has a 2HP motor and the install manual calls for a 25A breaker. The motor has an additional data label that also shows 20A is the max working load.
sberry
Banned
Some of these types of motors do not have their own thermal.
sberry
Banned
It seems I looked at some of the instructions before and found it to recommend something like "certified" electricial and suggest the owner call him. The manual for a welder comes with the data. I suspect there is no loss for Bendpack to use a larger wire since so many think its needed for "220" anyway but the thermal issue could be trump.
Mustang51js
Well-known member
What kind of panel, I happen to have two 2 pole 25 square d QO breakers that I will prob never need
wyliesdiesels
Well-known member
Breakers are for protecting inside wiring NOT whats plugged into them...so no u dont use a 1a breaker...
Breakers for motor circuits are only for protection against ground faults and short circuits. Breakers for motor circuits are sized higher than the ampacity of the wire because of in-rush currents that motors have. The overload on the motor or motor starter protects the wiring and motor...So your 3HP motor can have a max breaker size of ~42a....
I am using a Square D panel and didn't see the 25 amp at HD. Will check online. So here's another question. Since this is an attached garage. Do I use a GFCI circuit breaker? I know for all outside outlets, etc. GFCI is code, but an attached garage is a grey area, neither truly indoors nor outdoors.
pattenp
Well-known member
120V outlets in an attached garage are to be GFCI. 240V outlets do not need to be GFCI.
sberry
Banned
Because the 120 is for portable tools, many ungrounded, on general circuits where the user plugs in, some in wet locations. This probably isn't the right thing to say here but I would put a 30 on and forget about it.
This is not something automatic or unattended and I really have some legit doubts who ever wrote the manual knew exactly what they were doing.
USA made outfit would have allowed a 12/30
This is not something automatic or unattended and I really have some legit doubts who ever wrote the manual knew exactly what they were doing.
USA made outfit would have allowed a 12/30
Last edited:
ixlr8
Well-known member
I have a Bendpak 4 post lift, 120v motor, ran 12/2 wire because Bendpak instructions say to use a 25 amp breaker. The tag on the lift says max draw 20 amps, tag on motor says 17 amps full load current. I have been running it for 3 years with no issues on a 15 amp breaker.
wyliesdiesels
Well-known member
And that would be a code violation but u obviously dont care!!
sberry
Banned
Take a deep breath,,, don't panic!
JohnnieMo
Well-known member
I'm pre-wiring for my lift also. The Lift King rep said I need a 20A 240V breaker. He didn't specify wire. I assume 12/2 is fine.
Get this though... my new Mig Pak 180 welder specified a 40A 240V breaker and 14/2 wire! I had a very hard time believing the wire spec, so I tried it for a job. The wire never even got warm.
When I wire in the plug I'll use 12/2 for it also, but man - 240V really changes the game.
Get this though... my new Mig Pak 180 welder specified a 40A 240V breaker and 14/2 wire! I had a very hard time believing the wire spec, so I tried it for a job. The wire never even got warm.
When I wire in the plug I'll use 12/2 for it also, but man - 240V really changes the game.
sberry
Banned
Yes, they must have revised the Lincoln then and even that doesn't sound right, as far as I know it should be 30
There is a proposal to require GFCI's on 240V circuits for the next NEC edition, but that is a what may happen, not what is required now.
If a QO225, breaker cannot be found easily, use a QO230, install a 30A fusible switch & install 25A fuses in the switch.
wyliesdiesels
Well-known member
thats because branch circuits for welders have different sizing than normal branch circuits. Welder circuits are sized based on input current and duty cycle.
Sixfeet4
Well-known member
I'm doing pre-wire on my a shop right now and installing a BendPak 2-Post. Also running wire to add 4-post down the road. The local company that sells/installs the lifts told me 220V on 30A breakers for each of the lifts and my air compressor.
sberry
Banned
I want to ask why would one add another conductor?
JohnnieMo
Well-known member
Interesting. Makes sense. Their duty cycle is quite low. It doesn't cost me much to run a 12/2 anyways. I'll run the same for the lift.
Ya - I'm curious as well.