Type TS Motor

[jamesframes]

Can anyone tell me what "Type TS" means on the name-plate of a 1/3hp 3-phase electric motor (used for a pump). I thought "Type T" was for 3-phase.

 

[BigInch]

For that size motor, 3 phase would be way-overkill. Just guessing, but if you think TS applies to phase, the "S" would surely indicate "single".

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[jamesframes]

It is in fact a small 56-C 3-phase AC induction motor. A normal size, although the smallest normally available.
I am wondering if the "TS" means it is a "soft start" motor (whatever that is). I was told not to use a standard motor with this pump (it has a magnetic coupling - that might break loose if the start is too sudden).

 

[JJPellin]

In my table of motor frame dimensions, any frame number that ends in TS denotes a special short shaft. For frame 56-C, there is no shaft length indicated on this table. But, I suspect that the shaft on this motor is special and it may be shorter than typical.

Johnny Pellin

 

[TenPenny]

Under Nema standards, the 'S' stands for short shaft. a 'Z' means 'special'.

 

[ione]

TenPenny has addressed you the right way

http://www.mdisales.com/worldwide-electric-motors/nema-guide.html

 

[jamesframes]

Thanks! Got it.