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Will a QO breaker fit into the OLD, QO type Circuit Breaker Enclosures, example QO2100-50F, Series C02 or QO3100RO, Series C02? SEE Resolution for list of Cat. Numbers.

Issue:
Old Product Design Features

Product Line:
Enclosed Circuit Breaker

Environment:
Circuit Breaker

Cause:
Application


Resolution:
No,  ALL of the below enclosures do not accept the QO circuit breaker and the enclosures and Q1L type breakers, are ALL obsolete and no longer available.
The below listed enclsosures were all designed to accept the Q1L(Lug-Lug) breakers. See below each OLD enclosure catalog number, what breaker that enclosure used and what would be the current replacement for the enclosure and breaker.

QO2100-40RB Series C02 This enclosed circuit breaker used a Q1L240 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNRB and QO240.
QO2100-40RO Series C02 This enclosed circuit breaker used a Q1L240 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNRB and QO240. 

QO2100-40S Series C02 This enclosed circuit breaker used a Q1L240 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNS and QO240. 
QO2100-40F Series C02 This enclosed circuit breaker used a Q1L240 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNF and QO240. 
QO2100-50S Series C02 This enclosed circuit breaker used a Q1L250 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNS and QO250. 
QO2100-50RB Series C02 This enclosed circuit breaker used a Q1L250 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNRB and QO250. 
QO2100-50RO Series C02 This enclosed circuit breaker used a Q1L250 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNRB and QO250. 
QO2100-70RO Series C02 This enclosed circuit breaker used a Q1L270 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNRB and QO270. 
QO2100RO Series C02 This enclosed circuit breaker used a Q1L2100 breaker, which is obsolete and no longer available. Consider replacing with a QO2100BNRB and QO2100. 

QO2125F Series A04 This enclosed circuit breaker used a Q1L2125 breaker, which is obsolete and no longer available. Consider replacing with a QO2125BNF and QO2125. 
QO2125S Series A04 This enclosed circuit breaker used a Q1L2125 breaker, which is obsolete and no longer available. Consider replacing with a QO2125BNS and QO2125. 
QO2125NF Series E01 This enclosed circuit breaker used a Q1L2125 breaker, which is obsolete and no longer available. Consider replacing with a QO2125BNF and QO2125. 
QO2125NRB Series E01 This enclosed circuit breaker used a Q1L2125 breaker, which is obsolete and no longer available. Consider replacing with a QO2125BNRB and QO2125. 

QO2125NS, Series E01 This enclosed circuit breaker used a Q1L2125 breaker, which is obsolete and no longer available. Consider replacing with a QO2125BNS and QO2125.

QO3100-70RO Series C02 This enclosed circuit breaker used a Q1L370 breaker, which is obsolete and no longer available. Consider replacing with a QO3100BNRB and QO370. 
QO3100RO Series C02 This enclosed circuit breaker used a Q1L3100 breaker, which is obsolete and no longer available. Consider replacing with a QO3100BNRB and QO3100. 
QO3100NF Series E01  This enclosed circuit breaker used a Q1L3100 breaker, which is obsolete and no longer available. Consider replacing with a QO3100BNF and QO3100. 
QO3100NS Series E01 This enclosed circuit breaker used a Q1L3100 breaker, which is obsolete and no longer available. Consider replacing with a QO3100BNS and QO3100. 
QO3100F Series A05 or C02 This enclosed circuit breaker used a Q1L3100 breaker, which is obsolete and no longer available. Consider replacing with a QO3100BNF and QO3100. 
QO3100RB Series A05 or C02 This enclosed circuit breaker used a Q1L3100 breaker, which is obsolete and no longer available. Consider replacing with a QO3100BNRB and QO3100. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



 
 
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