Brochure

PowerPact™ H-, J-, and L-Frame Circuit Breakers

02/2016

SECTION 1: CATALOG NUMBERING ..............................................................................7

PowerPact™ with Micrologic™ Circuit Breakers .......................................................................... 7

Catalog Numbering....................................................................................................................... 8

SECTION 2: GENERAL INFORMATION .........................................................................11

Applications ................................................................................................................................ 11

Mission Critical Circuit Breakers ................................................................................................. 13

Flexible Configurations ............................................................................................................... 15

General Characteristics .............................................................................................................. 16

PowerPact H-, J-, and L-frame Circuit Breaker Trip Units ......................................................... 22

SECTION 3: CIRCUIT BREAKERS .................................................................................24

Dual-Break Rotating Contacts ....................................................................................................24

High Ampere Interrupting Ratings (AIR) ..................................................................................... 24

Internal Operating Mechanism....................................................................................................24

Handle Position Indication .......................................................................................................... 25

Circuit Breaker Ratings............................................................................................................... 25

Special Applications.................................................................................................................... 27

H- and J-Frame Catalog Numbers.............................................................................................. 29

L-Frame Circuit Breaker Catalog Numbers................................................................................. 39

SECTION 4: AUTOMATIC SWITCHES ...........................................................................45

Automatic Switch Functions ....................................................................................................... 45

Specifications.............................................................................................................................. 46

Catalog Numbers........................................................................................................................ 47

SECTION 5: MOTOR CIRCUIT PROTECTION ...............................................................49

General Information .................................................................................................................... 49

Motor Branch Circuit Protection Function ................................................................................... 49

Trip Class of a Overload Relay Device....................................................................................... 50

Asynchronous-Motor Starting Parameters.................................................................................. 50

Motor-Feeder Solutions .............................................................................................................. 50

Electronic Motor Circuit Protectors (AC Only)............................................................................. 52

Micrologic 1.3 M Electronic Trip Units for Instantaneous

Protection Only (L-Frame Circuit Breakers Only) ..................................................................... 55

Micrologic 2.2 M and 2.3 M Electronic Trip Units........................................................................ 56

Indications................................................................................................................................... 57