I am still learning UL codes and have looked in the document but wasn't sure the right place to look.
Please see attached picture. The customer sent me this picture. Is it legal to not have any OL relays? From my understanding the MMP would be the branch circuit protection and an OL relay would still be required for each motor? I kinda remembering something about combination of an MMP and a contactor with the correct coupling devices can be ok, but it is vague in my mind.
Anyone with experience help me out??
Please see attached picture. The customer sent me this picture. Is it legal to not have any OL relays? From my understanding the MMP would be the branch circuit protection and an OL relay would still be required for each motor? I kinda remembering something about combination of an MMP and a contactor with the correct coupling devices can be ok, but it is vague in my mind.
Anyone with experience help me out??