Exhuast Fans

[horsegoer]

I have a bunch of exhuast fans I am estimating. They show toggle switch nect to the unbit on the drawings indicated as a "St" and shown on the electrical symbol list as a motor control toggle switch. I tried looking in the spec and on the manufacturers website but don't have a clear answer. Is this a seperate switch that we mount or is it part of the unit. I was under the impression that we run power to the switch and whip to the unit but I have a feeling that is not correct.

Thanks.

[jmsbrush]

I have a bunch of exhuast fans I am estimating. They show toggle switch nect to the unbit on the drawings indicated as a "St" and shown on the electrical symbol list as a motor control toggle switch. I tried looking in the spec and on the manufacturers website but don't have a clear answer. Is this a seperate switch that we mount or is it part of the unit. I was under the impression that we run power to the switch and whip to the unit but I have a feeling that is not correct.

Thanks.
On all the exhaust fans that we have done ,we had a disconnecting means right beside the fan, which sometimes it was just a switch

[James@CHA]

Sounds like a motor rated switch, mounted near the equipment for disconnecting means.

[horsegoer]

I that switch part of the unit or something we mount?

[jmsbrush]

I that switch part of the unit or something we mount?
You are going to Install the switch, or disconnecting means. We always installed them within 5' , I'll see if i can find it in the code

[jmsbrush]

Look at 430.102 (B) and 430.109 (2) in the 2008 NEC

[sparkygriffin]

It is a motor starter switch. It has overloads in it which come in different sizes depending on your motors. It does not come with the fan ,you buy it.

[horsegoer]

Thanks Very Much

[infinity]

St means a switch with thermal overload protection. A pretty common sight on commercial jobs.

[Flex]

it mean switch with timer on the job im on now

[Ragin Cajun]

SMS is how we show a manual starter with overloads. Overloads sized to motor nameplate data.

Used a lot on exhaust fans for large rest rooms, hot water circulation pumps, etc.

RC