Line fuses and miniature circuit breakers

Line fuses and miniature circuit breakers are used for protecting the supply system cables. For fusing, use fuses and miniature circuit breakers with the following properties:

Type class

Requirement

Fuses in utilization categories gL, gG

Fusing voltage ≥ nominal line voltage

Miniature circuit breaker with characteristics B, C, D

Nominal miniature circuit breaker voltage ≥ nominal line voltage

Nominal currents of the miniature circuit breaker must be 10% higher than the nominal line current of the inverter

Adhere to the country-specific and system-specific regulations when carrying out the fusing. If required, observe the notes in the chapter "UL-compliant installation".