Connecticut Electric UBIZ3030 (R3830) New Zinsco Type Replacement. Twin 30/30 Amp Thin Series Manufactured, 30 Replacement Zinsco circuit breaker manufactured new by Connecticut Electric For use in Zinsco circuit breaker panels Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers 10,000 AIC 30/30 Amp 120/240 VAC (2) 1 Pole breakers in 3/4" body (AKA: twin, duplex, tandem) Plug in type May also be branded as Sylvania (ie, Sylvania RC 3830)