20A,3P breaker in the panel and 35A fuse disconnect downstrean.

[marcosgue]

Commercial building. Exhaust fan on the roof 2HP, 208V, 3Ph with manual toggle service switch. Bellow roof on the wall 35A fuse disconnect and motor starter feeding the fan with #12awg. 20A, 3pole breaker in the panel 50' away feeding the 35A fuse disconnect with #10awg. Is this set up correct?
I think the 35A fuse disconnect can be uninstall in the circuit
Some suggestions are very appreciate

 

[augie47]

Meets Code.
20 amp breaker provides SCGF protection.
Motor starter provides OL protection.
You need to check toggle switch for proper HP rating,

 

[infinity]

Sounds fine. The 35 amp fuses aren't really doing anything as the circuit is protected by the 20 amp circuit breaker.

 

[roger]

The disconnect could have slugs installed.

 

[marcosgue]

Roger What' the advantages to install slugs in the disconnect?

 

[infinity]

Roger What' the advantages to install slugs in the disconnect?

It makes it less confusing when we're not accustomed to seeing 35 amp fuses on a 20 amp circuit.

 

[marcosgue]

Is legal to install slugs in the disconnect? Any nec reference?

 

[infinity]

Is legal to install slugs in the disconnect? Any nec reference?

As long as they're listed for the disconnect (although copper pipe works rather well).

 

[marcosgue]

Thanks