Issue:
What is circuit breaker suffix 6339?

Product Line:
Circuit Breakers

Resolution:
A breaker or molded case switch with suffix 6339 indicates the device was made specially for an OEM with the following factory installed items:

• 4A auxiliary contacts
• 24 Vdc undervoltage release
• Fungus treatment
• Low temperature grease
• Special leads (specify length)
• Not UL listed

Because of how the breaker labels are printed, sometimes the suffix 6339 looks like 8339 or B339. The correct suffix is 6339.

Released for:Schneider Electric USA