WEG SSW-03 Plus Series - Page 31

30
INSTALLATION
3
 Recommended torque on the power terminals
Table 3.5 - Maximum tightening torque for bolts of power part
Type
SSW-03
Plus (A)
120
170/205
255...
340
410
475/580
670
800/950
1100/
1400
Standard Connection
Without Delta Kit
Bolt
R, S, T, U,
V, W
M6
(1/4")
M8
(5/16")
M10
(3/8")
M12
(1/2")
M12
(1/2")
M12
(1/2")
2 x M10
(3/8")
4 x M10
(3/8")
Torque
Nm
(Lb.in)
8.3
(74.38)
19
(166.25)
37
(328.12)
61
(542.50)
61
(542.50)
61
(542.50)
37
(328.12)
37
(328.12)
Bolt
R, S, T
M8
(5/16")
M10
(3/8")
M12
(1/2")
M12
(1/2")
2 x M12
(1/2")
4 x M12
(1/2")
4 x M12
(1/2")
-
With Delta Kit
Torque
Nm
(Lb.in)
19
(166.25)
37
(328.12)
61
(542.50)
61
(542.50)
61
(542.50)
61
(542.50)
61
(542.50)
-
Bolt
U, V, W
M6
(1/4")
M8
(5/16")
M10
(3/8")
M12
(1/2")
M12
(1/2")
M12
(1/2")
2 x M10
(3/8")
-
Torque
Nm
(Lb.in)
8.3
(74.38)
19
(166.25)
37
(328.12)
61
(542.50)
61
(542.50)
61
(542.50)
37
(328.12)
-
Bolt
M6
(1/4")
M8
(5/16")
M10
(3/8")
M12
(1/2")
M12
(1/2")
M12
(1/2")
2 x M10
(3/8")
-
Torque
Nm
(Lb.in)
8.3
(74.38)
19
(166.25)
37
(328.12)
61
(542.50)
61
(542.50)
61
(542.50)
37
(328.12)
-
Within the motor delta connection
Grounding
The Delta Kit is supplied with the SSW-03 Plus.
Copper cables with PVC 70°C (158°F) isolation, with ambient
temperature of 40°C (104°F) installed in perforated conduits
and not bunched.
Non insulated or silver plated bus bars with rounded edges
with 1 mm radius with ambient temperature of 40°C (104°F)
and bus temperature of 80°C (175°F).
For bypass connection use the same cables or bus bars that
are used for motor connection.
For correct cable dimensioning, consider the installation
conditions and the max. permitted voltage drop.