UBIZ2020-New Zinsco R3820 Replacement. Twin 20 Amp Thin Series Manufactured by Connecticut Electric. – Zinsco Gfci Circuit Breaker – Amazon.com. UBIZ20-New Zinsco Q20 Replacement. One Pole 20 Amp Thick Series Manufactured by Connecticut Electric – Magnetic Circuit Breakers – Amazon.com. Connecticut Electric manufactures new high quality replacement circuit breakers for Zinsco load centers that accept Zinsco Q style circuit breakers. Circuit breakers should only be replaced with new tested and Safety Agency Listed circuit breakers. . Single-Pole Zinsco Type Q . Shop our selection of Zinsco, Circuit Breakers in the Electrical Department at . 1-Pole Zinsco Type R Replacement Circuit Breaker . Zinsco 20 Amp 1-1/2 in. Using wire size #12-2 copper with ground, this 20 amp, 120/240 Volt, two pole, thin series replacement breaker is used in a Zinsco load center. Typical. Using wire size #10-2 copper with ground, this 20 amp, 120 Volt, single pole, replacement breaker is suitable for use in a Zinsco load center. Typical. Zinsco 20 amp twin RC-38 breaker provides (2) 120volt 20amp circuits. Breakers in great shape, Ready to go ! This lot is for 1 used Zinsco style Breaker. 20/20 Amp, 1-Pole, Type CHT CTL Plug-On Twin Circuit Breaker, Wire Size #14-4, 10 kAIC, 120/240V AC. ***For use with 2-8 Circuit Loadcenters***. 20A Zinsco® Replacement Twin Single Pole Breaker – Mfg #R3820 And UBIZ2020. The Zinsco circuit breaker by Connecticut Electric (type UBIZ) is for use in Zinsco load centers that accept type Q circuit breakers. It is ETL listed (10,000 AIC, .