Electrical Connection; General Information About The Electrical Connection; Protecting The Inverter - Siemens SINAMICS G180 Installation And Operating Instructions Manual

Electrical connection

6.1

General information about the electrical connection

Please note the following regarding the electrical connection.
● When installing cables and selecting the cabling materials, make sure that you provide
● Make sure that the cables are mechanically secured, e.g. using cable ties, against
For detailed information about cabling and connections, please refer to DIN EN 61800‑5‑1,
section 4.3.8.
Note
Familiarize yourself with the local safety requirements and national safety guidelines and
always observe them.
NOTICE
Use of aluminum cables at unsuitable terminals
If you connect aluminum cables to terminals which are not suitable for the purpose, corrosion
will develop. The equipment will be damaged as a result.
Use special cable lugs which are designed for connecting aluminum and copper.
Please contact the Siemens Service (Page 161) for advice about box terminals.
6.2

Protecting the inverter

When protecting the inverter a distinction must be made between the two cases.
Procedure when the motor has approximately the same rating as theinverter (I
● Protect the inverter against short-circuits.
● Take the fuse value from the technical data or, using the inverter continuous input current
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001
adequate isolation between circuits of different voltage classes (DVC), e.g. by using cables
with reinforced insulation or by routing cables in separate cable ducts.
accidental disconnection.
stamped on the type plate, select the next larger gL fuse.
6
≥ 0.5 * I )
mot fu
51