Wiring a 100amp outlet/connection- typical practice?

[tarbellb]

Im in the middle of a service line upgrade for my property and shop.

I will need a few high amp connections in the shop for certain tools (large 20hp VFD screw compressor, laser machine, welders, etc..)

What is considered best practice or typical for a 100amp and 60amp 1ph 240v connection
_ hardwired?
_ do i need or want a shutoff
_ anything else to consider


My setup will be using surface mount conduit, the run from box to panel is under 10ft

 

[u2slow]

Pin/sleeve is often used for these higher amp connections. I would hardwire though, as those get really pricey.

At 10' I'm content to use the breaker as the disconnect.

 

[tarbellb]

The panel/load center is on exterior, if that makes a difference @u2slow

 

[wyliesdiesels]

At 10' I'm content to use the breaker as the disconnect.

only allowed if the equipment is within site of the disconnect, which in the OP's case, is not

 

[wyliesdiesels]

compressor and I assume laser, are not portable, so i would hardwire those to a disco.

the welders, I assume, are portable and thus a plug and receptacle would be best

what is the make and model on the welder?

 

[wyliesdiesels]

The panel/load center is on exterior, if that makes a difference @u2slow

it does. see above comment #4

 

[u2slow]

only allowed if the equipment is within site of the disconnect, which in the OP's case, is not

I assumed it was within sight, since 10'.

OP has now clarified.

 

[matt_i]

Hardwired is cheapest but gives minimum flexibility in the layout as times change. 3 pole non-fused disconnects are still pretty cheap, in good-used condition, if you want to go that route.

A screw compressor or machine tool (etc) may have its own 3 pole disconnect native to the machine...

 

[mike93lx]

If all the equipment will be line of sight to a spot in the shop, a sub panel would likely be easiest.

How are you hooking up the 20hp vfd? That's not single phase, right?