The Federal Pacific Stab-Lok Thick 20 amp 1 inch Single Pole Type F-UBI Replacement Circuit Breaker is for use in typical applications up to 2200 watt. This breaker is a Stab-Lok with a maximum load of 240 volt.
Federal Pacific Replacement Breaker : NA20
For use in Stab-Lok 1 Pole breaker in 1 thick body NA Style breaker panels
Intertek ETL Listing to UL Standard 489 for US and Canada Molded case circuit breakers