These panels and circuit breakers are in our opinion unsafe and should be replaced.
Zinsco circuit breaker cross reference.
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.
These electrical panels do not use the zinsco or gte sylvania zinsco electrical panel bus and breaker design.
Photo of a recent gte sylvania zinsco circuit breaker burn up courtesy of jeff weissman.
Here we provide text labels and equipment photographs used to help identify sylvania electrical panels and circuit breakers.
On 2017 10 08 by mod magnatrip zinsco circuit breaker body has always been black.
For instance the chart below shows an example of a cross reference of type cl 1 breakers that could be interchangeable for panel installations.
Re posting without joe s advertisement joe jrl electric supply said.
You can check under the panel column for compatible eaton ul classified breakers.
Sylvania non zinsco circuit breaker electrical panel identification guide.
There are charts that show what circuit breakers are interchangeable.