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 | 20A/20A |
| Number Of Poles | Twin 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 RC Series |
| UL Listed | Yes |
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