Will this extension cord work with my knife grinder "safely"?

A

AZ556

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Apr 30, 2020
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I don't know anything about electricity other than not using too high of a wattage light bulb for a lamp.

Anyways, just got a Ameribrade grinder in and found out I need to use a different outlet in the garage that's 25ft away. I bought it with a 2hp Leeson motor & KBAC-27D (wired to 110).

Is the amazon linked extension cord OK to use?

https://www.amazon.com/Foot-Lighted...d=1595558453&sprefix=10+gauge+,aps,207&sr=8-5

Thanks for your help!
 
Check the plate on your motor and see what the amps are, that extension cord is only rated for 15 amps, if the motor is over 15 amps then it wouldn’t be recommend. Also make sure your motor is even setup to be able to run on 110 otherwise I think you can run into some issues there. The plate on the motor should tell you amps for the voltage it’s designed to run at, if it’s a 110/220 motor it should say amps for both. If it only says 220 then you may need to rethink running it at 110 through your vfd
 
Ten gauge would be plenty good.

Twelve would be more than enough.

Fourteen would be ok



If this made in china cord actually had in it the amount of copper that it should have. This isn't new, they are notorious for shortchanging specs and faking electrical certifications.

"Designed in USA" actually means, not made in the usa

Also consider how far away the outlet is from the panel, I think fifty feet is the limit on fourteen gauge wire and adding a heavier cord on the downstream end does not erase the limit on upstream end.



Go to HD or a real electrical supplier.
buy cabtire, or SO , SJOOW cord made in usa that's twelve or ten gauge and put your own ends on.
Then you know that's a good cord.
 
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Joshua Fisher said:
Check the plate on your motor and see what the amps are, that extension cord is only rated for 15 amps, if the motor is over 15 amps then it wouldn’t be recommend.

Also make sure your motor is even setup to be able to run on 110 otherwise I think you can run into some issues there.

The plate on the motor should tell you amps for the voltage it’s designed to run at, if it’s a 110/220 motor it should say amps for both. If it only says 220 then you may need to rethink running it at 110 through your vfd
Click to expand...

Normally I'd say you're right; the motor data plate is the info source.

But
I bought it with a 2hp Leeson motor & KBAC-27D (wired to 110). .
Click to expand...

The output of the VFD is what feeds the input of the motor and it's not 110 vac anymore after it leaves the vfd

He's ok with that.
 
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Tried to research and find out info before posting, but only leads me to more confusion. I greatly appreciate the help!

So I see the FL/SF amps. Looked up what FL/SF is and not 100% sure what I'm reading. But, it looks like the maximum output of amps is under 15?


Here's a link to the exact motor.

http://www.electricmotorwholesale.com/LEESON-116761/

Volts 230 Volts 460 Volts 190/380
FL Amps 5.8 FL Amps 2.9 FL Amps 6.8/3.4
SF Amps 7 SF Amps 3.5 SF Amps 8/4
RPM 1800 Hertz 60/50
HP 2 Duty CONTINUOUS Type TF
KW 1.49 SF 1.25 Phase 3
Frame 56H Design B KVA Code L
Ambient 40 Protection NOT Therm.Prot. 9700K46
Insulation Class F Eff(75%) PF 75.6
Eff(100%) 86.5 CSA Y Bearing OPE 6203
UL Y-(LEESON UL REC) CE Y Bearing PE 6203
CC Number EXEMPT Inverter Type Speed Range NONE
LOad Type
Motor Wt. 45 LB Enclosure TEFC Lubrication POLYREX EM
Nameplate 993500 Mounting RIGID Rotation REV
Shaft Diam. 5/8 IN Cust Part No. Packaging B
Winding T634340 Carton Label Leeson Wattsaver
Group 3 Iris
Paint GREEN - LEESON WATTSAVER Hazardous Location NONE Test Card 01
 
It is the VFD plate you need to look at, not the motor. Whatever is the max the VFD is rated for is what the cord should be capable of.

I have several heavy duty black rubber cords made up in 15' and 25' for 120 and 240. I use them for equipment outside the shop or to connect power to equipment that isn't sitting right by the workbench. I use 10/3 and NEMA 5-20/6-20 (125/250V) R/P ( receptacle and plug). Home depot has it all on the same row. About $50 to make a super heavy duty 25' cord.
 
Like Count said "consider how far away the outlet is from the panel"
Also what size wire do you have from the panel box to the outlet
 
25' would be negligible regarding voltage drop. As Stacey pointed out look at the input current of the vfd I would suspect in the 16-17 amp range which would require a 20amp breaker and 12gauge wiring to the receptacle and 12 gauge extension cord. Over 16amps it will require 10gauge wiring and a 30amp breaker. The receptacles required will be a different configuration than a 15amp receptacle.
 
10 gauge wire is good for 30 amps, a 2 hp motor, even at 120 volts is 14 amps. 25 feet will have minimal voltage drop. I might be missing something, but I'd feel comfortable using this at my house
 
I've measured my 1.5 horse motor on a KBAC-27D plugged into 120V at 14.5-15 amps under full load (read leaning into the grinder trying to bog it down and thus triggering the VFD's overcurrent protection). I'm using a 50 foot 12 gauge extension cord.
 
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