120V single phase AC motor - No thermal OL protection?

[minerman]

Hello,

We have a vendor that has supplied a vibrator motor. 115V / 1.35A. He is protecting it with a 2A time-delay fuse, but no thermal overload relay.

Is this ok? I thought all motors need to have short circuit protection (fuse or CB) AND thermal overload protection?

Does the time delay fuse suffice as both?

 

[minerman]

Nevermind. I think I found a perfect resource that answers my question.

http://ep-us.mersen.com/fileadmin/c...on-Low-Voltage-Fuses-For-Motor-Protection.pdf