Ac Connection; Ac Supply 400 V / 3-Phase; Supply Line; Figure 17: Connection Of The Mains Supply 400 V / 3-Phase - KEB COMBIVERT F6 Instructions For Use Manual

cONNecTION OF THe POWer UNIT

4.2.3 Ac connection

4.2.3.1 AC supply 400 V / 3-phase

L1
L2
L3
PE
No. Typ
Mains voltage
①
Mains form
Personal protection
②
Mains fuses
③
Mains contactor
④
Mains choke
HF filter for TN-, TT
⑤
systems
HF filter for IT systems
⑥
KEB COMBIVERT
Figure 17: Connection of the mains supply 400 V / 3-phase

4.2.3.2 Supply line

The conductor cross-section of the supply line is determined by the following factors:
•
•
•
•
PE
The rated voltage between one phase conductor and earth potential (or arti-
ficial neutral point in the IT mains) must not exceed 300 V (effective value).
RCMA with separator or RCD type B
Required for compliance with the limit values in accordance with
input current of the drive converter
used cable type /
installation and ambient temperatures
applicable local electrical regulations
The application engineer is responsible for the design.
L1
L2
L3
PE
PE
Description
3-phase 400 V
TN, TT
Type gG or MCCB
see notes under the table
F6
U
V
W
PE
IT
Insulation monitors
EN 61800-3.
51