The Zinsco R38-2020 is a 20A Tandem Breaker designed for electrical systems with a voltage range of 201-250V. It features thermal overload protection and a manual reset circuit breaker for reliable power distribution. With two poles for added redundancy, this circuit breaker is ideal for industrial and commercial applications requiring a maximum amperage of 20A. The Challenger and Sylvania brands associated with Zinsco ensure quality and performance in electrical equipment and supplies.