Product Description Zinsco circuit breaker by Connecticut Electric Type UBIZ. For use in Zinsco load centers that accept type RC circuit breakers. ETL Listed. 10,000 AIC 2-pole 40A. Type UBIZ 40A, 240V Replacement circuit breaker for Zinsco Double pole circuit breaker Thin For use in Zinsco load centers that accept type RC circuit breakers ETL Listed 10,000 AIC 2-pole 40A From the Manufacturer The Unique Breakers Type Z 40-Amp Double-Pole Replacement Circuit Breaker offers you an alternative source for replacement breakers to use in Zinsco load centers. The breaker is a suitable replacement for Zinsco Circuit Breakers, in ordinary locations only, and only with Zinsco panel boards. It has two poles, a thin format, 120/240 VAC, and a 60 Hz frequency. View-Pak's line of individual circuit breakers means that you can easily and conveniently replace a circuit breaker to maintain the top performance of your electrical system, and with View-Pak's wide variety you can be sure you'll find the specific circuit breaker you need. This circuit breaker is made by Unique Breakers, Inc. and has been designed to comply with the applicable requirements of the Standard for Molded-Case Breakers and Circuit Breaker Enclosures, as required by the National Electric Code.