TeSys N contactors and starters conform to NEMA ICS2 standards. The NEMA size is printed directly on the face of the contactor. The 3 pole NEMA size 4 motor starter has a 135 amperage continuous current rating. It also has a rating of 100HP at 575VAC. This motor starter has a Motor Logic solid state overload relay with a Class 10/20 rating. The overload is adjustable from 45 to 135 amperes. Starter has 1 normally open auxiliary contact. This starter is not in an enclosure. Motor starter is UL listed and CSA Certified.