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Table 5 Tightening Torque
3.1.2 Mounting Directly onto the Floor
The VCB should be mounted to a surface with a levelness of ±0.5 mm. If there are any large
gaps, use spacers to adjust. Check to make sure that the VCB is in OPEN status, and then
mount it using the steps shown in Figures 10 and 11 in that order.
.
Screw
nominal
dia.
Tightening
torque
Screw
nominal
dia.
Tightening torque
M4 1.47 to 1.96 N-m
(15 to 20 kgf-cm)
M8 11.8 to 14.7 N-m
(120 to 150 kgf-cm)
M5 2.94 to 3.92 N-m
(30 to 40 kgf-cm)
M10 24.5 to 30.9 N-m
(250 to 315 kgf-cm)
M6 4.90 to 6.37 N-m
(50 to 65 kgf-cm)
M12 44.1 to 55.4 N-m
(450 to 565 kgf-cm)
Figure 10 Fasten the VCB onto an angle or a flat plate. The
use of M8 hexagonal bolts (either 50 mm or 35 mm) is
recommended. The tightening torque should be 11.8 to 14.7
N · m (120 to 150 kgf · cm).
Figure 11 Either mounting
method may be used.
Figure 9 Fix the front plate onto panel
with two (2) M8 bolts and two (2) M4
screws removed at step shown in Fig. 8.
ANGLE
PANEL