4 Electrical Installation
4.1 How to Connect
4.1.1 Cables General
NOTE!
For the VLT HVAC Drive High Power series line power and motor connections, please see VLT HVAC Drive
High Power Instruction
ManualMG.11.FX.YY
.
NOTE!
Cables General
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper (140°–167°F
[60°–75°C]) conductors are recommended.
Details of terminal tightening torques.
Power (kW) Torque (Nm)
Enclo-
sure
200–240
V
380–480
V
525–600
V
Line pow-
er
Motor
DC connec-
tion
Brake Ground Relay
A2 1.1–3.0 1.1–4.0 1.1–4.0 1.8 1.8 1.8 1.8 3 0.6
A3 3.7 5.5 - 7.5 5.5–7.5 1.8 1.8 1.8 1.8 3 0.6
A5 1.1–3.7 1.1–7.5 1.1–7.5 1.8 1.8 1.8 1.8 3 0.6
B1 5.5–11 11–18.5 - 1.8 1.8 1.5 1.5 3 0.6
B2
-
15
22
30
-
-
4.5
4.5
2)
4.5
4.5
2)
3.7
3.7
3.7
3.7
3
3
0.6
0.6
B3 5.5–11 11–18.5 11–18.5 1.8 1.8 1.8 1.8 3 0.6
B4 11–18.5 18.5 - 37 18.5–37 4.5 4.5 4.5 4.5 3 0.6
C1 18.5 - 30 37 - 55 - 10 10 10 10 3 0.6
C2 37 - 45 75 - 90
-
-
14/24
1)
14/24
1)
14 14 3 0.6
C3 18.5 - 30 37 - 55 37 - 55 10 10 10 10 3 0.6
C4 30 - 45 55 - 90 55 - 90
14/24
1)
14/24
1)
14 14 3 0.6
High Power
Enclo-
sure
380–480
V
525–690
V
Line pow-
er
Motor
DC connec-
tion
Brake Ground Relay
D1/D3 110-132 45-160 19 19 9.6 9.6 19 0.6
D2/D4 160-250 200-400 19 19 9.6 9.6 19 0.6
E1/E2 315-450 450-630 19 19 19 9.6 19 0.6
F1–F33) 500-710 710-900 19 19 19 9.6 19 0.6
F2–F43) 800-1000 1000-1400 19 19 19 9.6 19 0.6
Table 4.1: Tightening of terminals
1) For different cable dimensions x/y, where x ≤0.147 in² [95 mm²] and y≥0.147 in² [95 mm²]
2) Cable dimensions above 25 hp [18.5 kW] ≥ 0.0542 in
2
[35 mm
2
] and below 30 hp [22 kW] ≤ 0.0155 in
2
[10 mm
2
]
3) For data on the F-series, please consult VLT HVAC Drive High Power Instruction Manual, MG.11.F1.02
VLT
®
HVAC Drive Instruction Manual 4 Electrical Installation
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
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