Electrical Installation; Connections - Enclosure Types A, B And C; Torque - Danfoss FC 102 Design Manual

Electrical Installation

6 Electrical Installation

6.1 Connections - Enclosure Types A, B and C

6.1.1 Torque

NOTICE
Cables General
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper
(75 °C) conductors are recommended.
Aluminium Conductors
Terminals can accept aluminium conductors, but the conductor surface has to 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 2 days due to softness of the aluminium. It is crucial to keep the
connection a gas tight joint, otherwise the aluminium surface oxidises again.
Enclosure 200-240 V 380-480 V
type [kW] [kW]
A2 1.1-2.2 1.1-4
A3 3-3.7 5.5-7.5
A4 1.1-2.2 1.1-4
A5 1.1-3.7 1.1-7.5
B1 5.5-11 11-18
B2 15 22-30
B3 5.5-11 11-18
B4 15-18 22-37
C1 18-30 37-55
C2 37-45 75-90
C3 22-30 45-55
C4 37-45 75-90
Table 6.1 Tightening-up Torque
MG11BC02
Design Guide
525-690 V Cable for
[kW]
-
-
-
- Mains, Brake resistor, load sharing, Motor cables
Relay
Ground
11-30 Mains, Brake resistor, load sharing cables
Motor cables
Relay
Ground
- Mains, Brake resistor, load sharing, Motor cables
Relay
Ground
- Mains, Brake resistor, load sharing, Motor cables
Relay
Ground
- Mains, Brake resistor, load sharing cables
Motor cables
Relay
Ground
37-90 Mains, motor cables
Load Sharing, brake cables
Relay
Ground
- Mains, Brake resistor, load sharing, Motor cables
Relay
Ground
- Mains, motor cables
Load Sharing, brake cables
Relay
Ground
Danfoss A/S © Rev. 06/2014 All rights reserved.
Tightening up torque
[Nm]
1.8
0.5-0.6
2-3
4.5
4.5
0.5-0.6
2-3
1.8
0.5-0.6
2-3
4.5
0.5-0.6
2-3
10
10
0.5-0.6
2-3
14 (up to 9 5mm 2 )
2
24 (over 95 mm )
14
0.5-0.6
2-3
10
0.5-0.6
2-3
2
14 (up to 95 mm )
24 (over 95 mm 2 )
14
0.5-0.6
2-3
83
6 6