immensity725
Member
- Location
- reading, pa
what size manual motor starter should one get for a 230v/ single phase/ 3hp. with a overload protection FLA is 16 amps... FLC is 17amps...SF 1.15..
over load protection
- Thread starter immensity725
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jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Is this a homework question? Looks like it.
immensity725
Member
- Location
- reading, pa
answer
answer
no just want to make sure I did the equation right..
answer
no just want to make sure I did the equation right..
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
How can we tell?
You need to post your math and answer for the members to evaluate your solution.
- Location
- San Francisco Bay Area, CA, USA
- Occupation
- Electrical Engineer
What you would get is a MMS that has a rating of 3HP. the amp rating is secondary to the HP rating, meaning that even if you think the amp rating is going to work, if it is not rated for 3HP or more, you cannot use it.
What you SET the OL trip for (or how you select OL heater elements) will depend on the specific instructions of that specific MMS that you purchase and how it is used, mounted etc..
What you SET the OL trip for (or how you select OL heater elements) will depend on the specific instructions of that specific MMS that you purchase and how it is used, mounted etc..
kwired
Electron manager
- Location
- NE Nebraska
I might add rated 3HP at 240 volts single phase.
You may find a 10 HP rated switch or contactor rated at 480 volts three phase still isn't sufficient when used on 240 volts single phase.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
I would suggest looking in the Sq D Digest or an Allen Bradly catalog. both are full of sizing information and of course, read the notes
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