Flush-End Fuse Blocks Used With 690 V Units; Tightening Torques; Common Tightening Torques For Screw Connections; Electrical Connections - ABB ACS880-104 Hardware Manual

Flush-end fuse blocks used with 690 V units


Rating
Class
A rms
125 aR
160 aR
200 aR
250 aR
315 aR
350 aR
400 aR
500 aR
630 aR
800 aR
1000 aR
1100 aR

Tightening torques

Common tightening torques for screw connections


Use the torques given in component-specific documentation.
For Rittal components, use the torques given in the Rittal assembly documentation.

Electrical connections


Size
M3 0.5 N·m (4.4 lbf·in)
M4 1 N·m (9 lbf·in)
M5 4 N·m (35 lbf·in)
M6 9 N·m (6.6 lbf·ft)
M8 22 N·m (16 lbf·ft)
M10 42 N·m (31 lbf·ft)
M12 70 N·m (52 lbf·ft)
M16 120 N·m (90 lbf·ft)

Mechanical connections


Size Max. torque
M5 6 N·m (53 lbf·in)
M6 10 N·m (7.4 lbf·ft)
M8 24 N·m (17.7 lbf·ft)

Insulation supports


Size Max. torque
M6 5 N·m (44 lbf·in)
M8 9 N·m (6.6 lbf·ft)
M10 18 N·m (13.3 lbf·ft)
M12 31 N·m (23 lbf·ft)
Example
Bussmann 170M3392
Bussmann 170M4388
Bussmann 170M4389
Bussmann 170M4390
Bussmann 170M4391
Bussmann 170M4392
Bussmann 170M4393
Bussmann 170M4395
Bussmann 170M6544
Bussmann 170M6546
Bussmann 170M6548
Bussmann 170M6549
Torque
Power
Clearing I
loss at I
n
2
W
A s
35 9000 1000
45 11500 1000
50 22500 1000
60 46000 1000
65 90000 1000
70 125000 1000
75 175000 1000
85 340000 1000
115 495000 1000
125 995000 1000
135 2150000 1000
140 2800000 1000
Note
Strength class 4.6...8.8
Strength class 4.6...8.8
Strength class 8.8
Strength class 8.8
Strength class 8.8
Strength class 8.8
Strength class 8.8
Strength class 8.8
Note
Strength class 8.8
Strength class 8.8
Strength class 8.8
Note
Strength class 8.8
Strength class 8.8
Strength class 8.8
Strength class 8.8
Technical data 291
2 U
t
n
Size
V V
1*
1250 (IEC),
1300 (UL)
1
1100 (IEC)
1250 (IEC),
1300 (UL)
3
1100 (IEC)
1000 (IEC)