Load-break switch and cable protection


  • In PV systems with multiple inverters, protect each inverter with a separate three-phase circuit breaker. Make sure to observe the maximum permissible fuse protection Technical Data). This will prevent residual voltage from being present at the corresponding cable after disconnection.

  • Loads installed between the inverter and the circuit breaker must be fused separately.

  • The load-break switch or circuit breaker must be suitable listed (see National Electrical Code® ANSI/NFPA 70) or Canadian Electrical Code® CSA C22.1).

  • The overcurrent protective device for the AC output circuit is to be provided by others.

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