Mains Wiring Overview - Danfoss VLT HVAC Operating Instructions Manual

4. Electrical installation
4.1.3. Earthing and IT mains
The mains is connected to the main disconnect switch if this is included.
4

4.1.4. Mains wiring overview

Please use the following table to follow mains wiring connection instructions.
Enclo-
sure:
Motor
size:
200-240 V
380-480 V
525-600 V
Goto:
Table 4.5: Mains wiring table.
24
The earth connection cable cross section must be at least 10 mm
wires terminated separately according to EN 50178 or IEC 61800-5-1 unless national
regulations specify differently.
NB!
Check that mains voltage corresponds to the mains voltage of the frequency con-
verter name plate.
IT Mains
Do not connect 400 V frequency
converters with RFI-filters to
mains supplies with a voltage
between phase and earth of
more than 440 V.
For IT mains and delta earth
(grounded leg), mains voltage
may exceed 440 V between
phase and earth.
A2 A3
(IP 20/IP (IP 20/IP (IP 55/IP
21) 21) 66)
1.1-3.0 3.7 1.1-3.7
kW kW kW
1.1-4.0 5.5-7.5 1.1-7.5
kW kW kW
2.2-4.0 5.5-7.5
kW kW
4.1.5 4.1.6
MG.11.A4.02 - 09.10.06. VLT
®
VLT
Illustration 4.1: Terminals for mains and earthing.
A5 B1 B2
(IP 21/IP (IP 21/IP
55/IP 66) 55/IP 66)
5.5-11 15
kW kW
11-18.5 22-30
kW kW
4.1.7
® is a registered Danfoss trademark
HVAC Drive Operating Instructions
2
or 2 rated mains
C1 C2
(IP 21/IP (IP 21/IP
55/66) 55/66)
18.5-30 37-45
kW kW
37-55 75-90
kW kW
4.1.8