Line fuses, fuse types

Line fuses and miniature circuit breakers are used for fusing the supply system cables of the axis block. In case of a fault, these components protect the power supply module against short-circuits. 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 miniature circuit breaker currents must be at least 10% above the nominal line current of the power supply module

The PE impedance must comply with the normative specifications.

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