What size electrical breaker is used for the Modine HDS60AS0121FCAN?

Hello, thank you for reaching out. The HDS60AS0121FCAN operates on 115V single-phase power and draws 3.3 amps. Modine does not specify an exact branch-circuit breaker size in their available documentation. Electrical protection must be sized according to the NEC, local codes and the unit's installation instructions. The factory toggle switch is rated 15A at 125V, but this should not be treated as a confirmed required breaker size. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.