Specification

Motor Control Solutions Table of Contents
2 © 2013–2017 Schneider Electric All Rights Reserved 8536DB0901R09/16
Table of Contents
Introduction .................................................................................................... 4
Overview of U.S. Standards and Regulations ............................................. 4
U.S. National Standards ............................................................................ 4
UL 508 Transition to UL 60947 .................................................................. 4
Product Standards: UL 489 Circuit Breakers vs. UL 1077 Supplementary
Protectors .................................................................................................. 5
Certification Process .................................................................................. 5
Acceptance of Electrical Equipment in the U.S. ......................................... 5
Structure of a Motor Starter in Accordance with UL 508A ......................... 6
Feeder Circuits and Branch Circuits .......................................................... 6
Group Motor Installations..................................................................... 7
Required Functions of Combination Starters ............................................. 8
Combination Starter Construction Types .................................................... 9
UL Combination Starter Types A through D ............................................. 10
UL Combination Starter Type E......................................................... 10
UL Combination Starter Type F......................................................... 10
Self-Protected Designation and Implications ........................................... 10
Construction Type Selection .................................................................... 11
Disconnecting Means on a Feeder or Branch Circuit .............................. 11
Motor Starter Line Diagrams .................................................................... 12
Disconnecting Means .................................................................................. 13
Industrial Machinery Requirements (NFPA 79 Section 5.3.3.1 and
UL 508A Section 65, 66) .......................................................................... 13
SCCR Requirement in UL 508 A ................................................................. 14
Ratings: Tested Combination vs. Component ................................... 14
UL 508A Support Websites ............................................................... 15
Combination Starter Components ............................................................. 16
UL 98 Manual Disconnect Switches ........................................................ 16
TeSys™ GS Disconnect Switches..................................................... 16
TeSys™ LK Disconnect Switches ..................................................... 16
Class 9422 Disconnect Switches....................................................... 17
UL 248 Fuses .......................................................................................... 18
TeSys™ DF Fuse Holders................................................................. 18
Type FB Fuse Holders....................................................................... 18
UL 489 Molded-Case Circuit Breakers .................................................... 19
PowerPact™ Circuit Breakers and Motor Circuit Protectors ............. 19
UL 489 Miniature Circuit Breakers and UL 1077 Supplementary
Protectors ................................................................................................ 20
Multi 9™ Circuit Breakers and Supplementary Protectors ................ 20
UL 508 Contactors ................................................................................... 21
TeSys™ K Contactors ....................................................................... 21
TeSys™ D Contactors....................................................................... 22
TeSys™ F Contactors ....................................................................... 25
TeSys™ N Contactors....................................................................... 27
Type S Contactors............................................................................. 28
Definite Purpose Contactors.............................................................. 29