These old breaker boxes don't always have the Challenger label on them. Some of the Zinsco or Zinsco-Sylvania were issued under the Challenger name. 5. Murray. Murray is another of the old breaker boxes contractors installed several decades ago. There are modern Murray panels that are perfectly fine. These modern Murray panels are safe.. Type Wiring Diagram in the search box, choose a template you like and click Create with Template. Customize the diagram Click Symbols to find wiring shapes to customize your design. Add connectors, lines, and text from the top or floating bar. Double-click to update labels, connections, and other details.
How To Replace A Zinsco Breaker. Residential circuit breakers can be easy to replace if you keep a few things in mind. Zinsco circuit breakers are very old b.. I have an old zinsco breaker box and need to wire in a 240volt water heater how can I do it? well looks like they have a. See attached diagram for wiring a standard electric hot water heater: Electrician: Kevin. I have a Zinsco panel in my condo and I have aluminum wiring. AssuredElectrical | Contractor-42+ Years in the ElectricalTrade.