Series GJ
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Catalog excerpts

Series GJ - 1

Circuit Breakers High current fully magnetic

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Series GJ - 2

Heinemann Circuit Breakers Series GJ Versatile, compact circuit breakers Heiremann" Series GJ circuit breakers are the logical choice lor high quality service entrance and panelboard installations, as well as control and protection ol commercial and industrial lighting, transformers, motors and power supplies. Their precisely tailored time delays, and ability to interrupt high currents makes them ideal for critical applica- tions with inductive or olher loads of up to 250 amperes. On overloads exceeding 1000-1400% of rating the time delay is bypassed, and the breaker operates instantly...

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Series GJ - 3

Heinemann Circuit Breakers Series GJ Electrical ratings and specifications Single-Pole Two-Pole Three-Pole Catalog No. GJ1 Catalog No. GJ2 Catalog No GJ3 Model Numbers Single-pole breakers: GJ1. Two-pole breaker: GJ2. Three-pole :;'!U-.L-I GJ3 hour-pole breaker GJ4 (consult factory). Standard Current Ratings Standard Maximum Voltages Breakers will be labeled with standard maximum (UL) voltage unless otherwise specified. Special Current Ratings Any integral rating between 100 and 250 A, ac or dc. Contact the factory for ratings below 100 amps, Interrupting Capacities Any integral rating...

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Series GJ - 4

Heinemann Circuit Breakers Series GJ Time delay curves The curves shown indicate the magnitude and duration of overloads which will be tolerated before tripping occurs. By selecting the proper curve, breaker response can be closely matched to the safe operating limits of the equipment or circuitry. Curve 1 allows the largest and most prolonged overload, needed to prevent nuisance tripping on motor circuits. Curve 2, a medium delay, accommodates mixed loads consisting of lights, motors and resistive heating, where the breaker is rated to the wiring instead of to any specific load. Curve 3:...

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Series GJ - 5

Heinemann Circuit Breakers Series GJ Series GJ circuit breakers Note: Standard catalog number must have 18 digits including dashes. See How To Order non-standard when all poles of a multipole unit are Terminal Location Add a dash before the code letter. Inrush Code Internal Circuit Construction Switch only (no coil) "Series trip with SPOT aux. switch Series trip 'On multipole units one am switch is supplied. II is located in the left pole when viewed 'torn the front of the breaker. See page 6 for non-standard part number when addilional switches or pole locations are requited See Note 1. 1...

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Series GJ - 6

Heinemann Circuit Breakers Series GJ Series GJ circuit breakers Slep1 "Non-standard pari numbers may require a factory assigned cart number. Voltage, frequency and internal circuit for first pole on left as viewed from front of panel, or for all poles if identical, from Tables A and B. Terminal Location Add a dash after single digit UL codes. Code UL Type Approval Maximum Voltage Branch Circuit - General Purpose 240AC 125DC Branch Circuit - Special Purpose 24CAC 125DC Molded Case Switch 240 AC 125DC Breakers will be marked with the maximum UL approved voltage Note: Code G and H (Table A)...

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Series GJ - 7

Heinemann Circuit Breakers Series GJ For metric threads, consult factory. Approximate Weights Standard Back-Connected Construction All dimensions are in inches/mm, tolerance ± 1/32" except where noted. Dimensions are given here only as a preliminary guide to specifying. Final engineering drawings should be made from the latest Heinemann factory drawings, available on request.

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Series GJ - 8

Heinemann Circuit Breakers Series GJ For the widest selection of circuit protection, from 0.01 to 700 amperes, look to Heinemann, Magnetic Circuit Breaker Hydraulic/Magnetic Breaker Series GJ High Current Hydraulic/Magnetic Breaker Rocker Handle Protector Magnetic Circuit Breaker Magnetic Circuit Breaker Hydraulic/Magnetic Breaker Series GJ1P High Current DC Hydraulic/Magnetic Breaker Sealed Hydraulic/ Magnetic Breaker Compact Hydraulic/ Magnetic Protector Magnetic Circuit Breaker For warranty information, see CMCO Bulletin C-C7.0 Products described by this catalog are covered by one...

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