Siemens SINAMICS G220 - Overcurrent Protection and Fault Current Protection; Overcurrent Protection Devices

7.1.7 Overcurrent protection and fault current protection
7.1.7.1 Overcurrent protection devices
Description
Overcurrent protection devices, e.g. standard fuses or semiconductor fuses, are not part of the
converter and must be installed externally.
WARNING
Fire and electric shock due to unsuitable overcurrent protection devices
Unsuitable overcurrent protection devices can cause the converter temperature to increase
signi󹪝cantly. This can damage the converter or cause it to catch 󹪝re, resulting in electric shock
and death.
• Use only suitable overcurrent protection devices.
• Carefully ensure that cables and conductors are professionally and adequately
dimensioned.
• Comply with the standards of the respective country and jurisdiction.
The following standards apply dependent on the jurisdiction:
• IEC jurisdiction
– IEC standard 60364
– In addition, all local standards and regulations for electrical installations.
• UL/CSA jurisdiction
– UL Standard National Electrical Code (NEC) for the USA
– CSA Standard Canadian Electrical Code (CEC) Part I for Canada
– In addition, all local rules and regulations
More information
You can 󹪝nd more information about overcurrent protective devices on the Internet:
Protective devices for SINAMICS G220 (https://support.industry.siemens.com/cs/ww/en/view/
109823568)
Connecting
7.1Line system, motor and braking resistor
SINAMICS G220 converter
170 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB