Low Voltage electrical cable???

[woodchucker]

I am unclear as to what the brake wire is connected to, it sounds like it connects to the brake microswitch but you do not indicate what it is connected to or used for. If to a VFD low voltage input, then it is usually 24VDC and a few mA so only needs to be control cable 18 to 22awg wire, if to a contactor then the voltage rating of the contactor and current of the fuse so 16 to 18awg. If you are talking external braking resistor than minimum 400vdc at several amps so 600vac or vdc rated and 14awg for up to 3hp vfd 220vac rated.

Not for a VFD. The vfd is for my mill.

no contactor.
Thanks all... forget it.

 

[woodchucker]

Could be he thought the brake switch was on the low voltage side of a contactor?
But if he really knew wire/wiring he’d probably be making money more doing that than counter sales.

After thinking about it, maybe , but he probably should have asked. Since this is for an old South Bend 9 no contactor, no low voltage.. 110v drum switch.

 

[rabler]

After thinking about it, maybe , but he probably should have asked. Since this is for an old South Bend 9 no contactor, no low voltage.. 110v drum switch.

Idiots abound in this world. From clerks to those with doctoral degrees. Don't tell me your surprised, but I'd be angry too.

Here's some wire from Home Depot that is sold as THHN, but is also rated as MTW if you read the product detail. 105 degree C rated for appliance use. I just keep a roll of 12 ga and a roll of 16 ga around so I can grab as needed. I do a lot of wiring so I keep a few different colors. Sure, I use 12 ga when could certainly get away with 14, but it's not worth keeping all the different options on hand, and the spool cost discount makes up for the cost and hassle of buying each piece by the foot as needed.

 

[woodchucker]

ok learned people.
maybe someone can explain to me (aside from the fact that the 30 amp faces horizontal and the 50 amp vertical) why the 50amp blade is smaller than the 30 amp blade?

 

[ErichKeane]

ok learned people.
maybe someone can explain to me (aside from the fact that the 30 amp faces horizontal and the 50 amp vertical) why the 50amp blade is smaller than the 30 amp blade?
View attachment 442094View attachment 442095

Both are MORE than big enough for their rating. They are just sized for whatever the design of the outlet that ?NEC? came up with. There is rarely rhyme/reason to it.

 

[rabler]

ok learned people.
maybe someone can explain to me (aside from the fact that the 30 amp faces horizontal and the 50 amp vertical) why the 50amp blade is smaller than the 30 amp blade?
View attachment 442094View attachment 442095

Maybe some logic about plugging 30's into 50's or vice versa?

 

[tq60]

That is a 120 volt plug.

Big is neutral

Small is hot

Likely same material used in different versions of connectors.

Sent from my SM-G781V using Tapatalk

 

[woodchucker]

That is a 120 volt plug.

Big is neutral

Small is hot

Likely same material used in different versions of connectors.

Sent from my SM-G781V using Tapatalk

sorry, but that is a 220v plug 50amp and 30amp.
It's an Eaton (Cooper) made for heavy duty .. If you read the blades, it says 250V, not 110v.