VLT
®
AutomationDrive FC 300 Instruction
Manual
3.3. Electrical Installation
Aluminum Conductors
Terminals can accept aluminum conductors, but the conductor surface must be clean, and the
oxidation must be removed and sealed by neutral acid-free Vaseline grease before the conductor
is connected.
Furthermore, the terminal screw must be retightened after two days due to the softness of the
aluminum. It is crucial to keep the connection a gas-tight joint, otherwise the aluminum surface
will oxidize again.
Tightening-up Torque
AFD size
A1
A2
A3
A5
B1
B2
C1
C2
D1, D3
D2, D4
E1, E2
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 rec-
ommended.
200-240 V
380-500 V
525-690 V
0.33-2
hp
0.5-2
hp
[0.25-1.5 kW]
[0.37-1.5 kW]
0.33-3
hp
0.5-5
hp
1-5 hp [0.75-4
[0.25-2.2 kW]
[0.37-4 kW]
kW]
4-5 hp [3-3.7
7.5-10
hp
7.5-10
kW]
[5.5-7.5 kW]
[5.5-7.5 kW]
4-5 hp [3-3.7
7.5-10
hp
1-10
kW]
[5.5-7.5 kW]
[0.75-7.5 kW]
7.5-10
hp
15-20
hp
[5.5-7.5 kW]
[11-15 kW]
11 kW
25-30
hp
[18.5-22 kW]
20-30
hp
40-60
hp
[15-22 kW]
[30-45 kW]
40-50
hp
75-100
hp
[30-37 kW]
[55-75 kW]
-
125-150
hp
150-200 hp
[90-110 kW]
[110-132 kW]
-
200-300
hp
250-450 hp
[132-200 kW]
[160-315 kW]
-
350-550
hp
500-750 hp
[250-400 kW]
[355-560 kW]
MG.33.A9.22 - VLT is a registered Danfoss trademark
Cable for:
-
Line, brake resistor, load
sharing, motor cables
hp
hp
-
Line, brake resistor, load
sharing, motor cables
Relay
Ground
-
Line, brake resistor, load
sharing cables
Motor cables
Relay
Ground
-
Line, brake resistor, load
sharing cables
Motor cables
Relay
Ground
-
Line, brake resistor, load
sharing cables
Motor cables
Relay
Ground
Line, motor cables
Load sharing, brake cables 9.5 Nm
Relay
Ground
Line, motor cables
Load sharing, brake cables 9.5 Nm
Relay
Ground
Line, motor cables
Load sharing, brake cables 9.5 Nm
Relay
Ground
3. How to Install
Tightening torque
0.5-0.6 Nm
1.8 Nm
0.5-0.6 Nm
2-3 Nm
4.5 Nm
4.5 Nm
0.5-0.6 Nm
2-3 Nm
10 Nm
10 Nm
0.5-0.6 Nm
2-3 Nm
14 Nm
10 Nm
0.5-0.6 Nm
2-3 Nm
19 Nm
0.5-0.6 Nm
19 Nm
19 Nm
0.5-0.6 Nm
19 Nm
19 Nm
0.5-0.6 Nm
19 Nm
21
3
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