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Circuit Breaker Characteristic Trip Curves and Coordination

This document is current but may reference obsolete products.
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    Data Bulletin

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This document is current but may reference obsolete products.


This document contains information about circuit breaker trip curves, Micrologic™ trip functions, Square D™ trip curves, circuit breaker coordination, and the EZ-AMP Overlay Method.

Product Ranges:

KA, KC, KH, KI Molded Case Circuit Breakers, NA, NH, NC, NE, NX Molded Case Circuit Breakers, FA, FH, FJ, FK, FY (F-frame) molded case circuit breakers and switches, FHL-DC 500 Vdc Molded Case Circuit Breakers, LA, LH, Q4 Molded Case Circuit Breakers, PA, PC, PE, PH, PX Molded Case Circuit Breakers

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