Zinsco replacement circuit breakers are of a unique design that only fit into load centers (no longer made) that may be labeled Challenger, Sylvania, or Zinsco.
Amperage
15A
Number of Poles
1-Pole
Interruption Type
Standard Trip
Voltage
120V/240V
Frame Size
1-Space
Breaker Size
3/4 In.
Mount Type
Z Plug-In For Zinsco Q Series