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. Replacement Federal Pacific Electric® Stab-Lok® circuit breaker manufactured new by Connecticut ElectricFor use in Stab-Lok® circuit breaker panelsIntertek ETL Listing to UL Standard 489 for US and Canada – Molded case circuit breakersRF sealed clamshell package with security tag20 Amp - 10,000 AIC1 Pole breaker in 1” thick body – NA Style