Danfoss FC 102 Design Guide

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
type
200-240 V
[kW]
380-480 V
[kW]
525-690 V
[kW]
Cable for Tightening up torque
[Nm]
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 - Mains, Brake resistor, load sharing, Motor cables 1.8
Relay 0.5-0.6
Ground 2-3
B2 15 22-30 11-30 Mains, Brake resistor, load sharing cables 4.5
Motor cables 4.5
Relay 0.5-0.6
Ground 2-3
B3 5.5-11 11-18 - Mains, Brake resistor, load sharing, Motor cables 1.8
Relay 0.5-0.6
Ground 2-3
B4 15-18 22-37 - Mains, Brake resistor, load sharing, Motor cables 4.5
Relay 0.5-0.6
Ground 2-3
C1 18-30 37-55 - Mains, Brake resistor, load sharing cables 10
Motor cables 10
Relay 0.5-0.6
Ground 2-3
C2 37-45 75-90 37-90 Mains, motor cables
14 (up to 9 5mm
2
)
24 (over 95 mm
2
)
Load Sharing, brake cables 14
Relay 0.5-0.6
Ground 2-3
C3 22-30 45-55 - Mains, Brake resistor, load sharing, Motor cables 10
Relay 0.5-0.6
Ground 2-3
C4 37-45 75-90 - Mains, motor cables
14 (up to 95 mm
2
)
24 (over 95 mm
2
)
Load Sharing, brake cables 14
Relay 0.5-0.6
Ground 2-3
Table 6.1 Tightening-up Torque
Electrical Installation
Design Guide
MG11BC02 Danfoss A/S © Rev. 06/2014 All rights reserved. 83
6 6

Danfoss FC 102 Specifications

General

Brand	Danfoss
Model	FC 102
Category	DC Drives
Language	English