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What is a 1586 suffix? What is a 1586B suffix?

Published date: 27 November 2019

Looking for details on part number suffixes.

Product line:  
Molded case switches

OEM molded case switches

The 1586 suffix indicates this breaker is only for use by Trane Company.  It includes high amp control wire lugs for FA frame, FASTON tabs on left and center poles, load side.  It is also UL approved.
The 1586B suffix indicates the breakers were originally sold bulk packed to the OEM. The breaker with suffix 1586 can be used in place of suffix 1586B.

FHL36000M1586 circuit breaker is obsolete and replaced by the HGL36000S15 molded case switch with S37423. Field install the S37423 onto the center and left pole, OFF end only. 
The replacement switch is not a drop-in replacement to the FHL. Retrofitting is needed.

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