Zinsco Circuit Breaker Cross Reference

These panels and circuit breakers are in our opinion unsafe and should be replaced.

Zinsco circuit breaker cross reference.

Sylvania non zinsco circuit breaker electrical panel identification guide. You can check under the panel column for compatible eaton ul classified breakers. On 2017 10 08 by mod magnatrip zinsco circuit breaker body has always been black. If you are speaking of the original magnatrip zinsco circuit breakers the body has always been black unless it is the current replacement that is grey manufactured by ubi.

Zinsco electrical panels were distributed in the united states primarily in the western states. Gte sylvania zinsco electrical panels and circuit breakers use a thin vertical bus bar and deep slots into the connecting circuit breaker to form a connection that corrodes arc burns overheats and is unreliable. Re posting without joe s advertisement joe jrl electric supply said. For instance the chart below shows an example of a cross reference of type cl 1 breakers that could be interchangeable for panel installations.

Below is a close up of the bus connection end of a classic zinsco circuit breaker showing the difference between these devices. These electrical panels do not use the zinsco or gte sylvania zinsco electrical panel bus and breaker design. There are charts that show what circuit breakers are interchangeable.