Fastener Tightening Torques - Danfoss VLT AutomationDrive FC 302 Operating Manual

Specifications
Enclosure size
D6h
D8h (excluding N250 380-500V model)
D8h (N250 380-500V model only)
Table 10.14 D6h and D8h Drives Supplied with a Disconnect and Contactor
1) With gL/gG fuses: 425A maximum fuse size for D6h, and 630A maximum fuse size for D8h.
2)
With external upstream Class J fuses: 450 A maximum fuse size for D6h, and 600 A maximum fuse size for D8h.
Enclosure size
D6h
D8h
Table 10.15 D6h and D8h Drives Supplied with a Circuit Breaker Only

10.8 Fastener Tightening Torques

Apply the correct torque when tightening fasteners in the locations that are listed in Table 10.16. Too low or too high torque
when fastening an electrical connection results in a bad electrical connection. To ensure correct torque, use a torque
wrench.
Location
Mains terminals
Motor terminals
Ground terminals
Brake terminals
10 10
Load sharing terminals
Regeneration terminals (Enclosures D1h/D2h)
Relay terminals
Door/panel cover
Gland plate
Heat sink access panel
Serial communication cover
Table 10.16 Fastener Torque Ratings
108
VLT® AutomationDrive FC 302
415 V
1)
IEC
100000 A
100000 A
100000 A
415 V
120000 A
100000 A
Bolt size
M10/M12
M10/M12
M8/M10
M8
M10/M12
M8
_
M5
M5
M5
M5
Danfoss A/S © 09/2018 All rights reserved.
480 V
2)
UL
100000 A
100000 A
Contact Danfoss
480 V 600 V
100000 A 65000 A
100000 A 42000 A
Torque [Nm (in-lb)]
19 (168)/37 (335)
19 (168)/37 (335)
9.6 (84)/19.1 (169)
9.6 (84)
19 (168)/37 (335)
9.6 (84)
0.5 (4)
2.3 (20)
2.3 (20)
3.9 (35)
2.3 (20)
600 V
2)
UL
100000 A
100000 A
Not applicable
690 V
70000 A
30000 A
MG34U502