VersaRupter MV Indoor Switch | Installation and Operation Manual
33
Installing the Bottom Mounted Fuse Base with Fuse Tripping
Adjusting the fuse tripping:
Charge the A-mechanism as described below in “Fuse trip-
ping control”.
1. Adjust the release shaft to a position similar to that
found in figure 76 so that the distance from the fuse
trip flap to fuse is within the limits of figure 79.
2. Secure the washer and bearing on the left side of the
release shaft with the provided cir-clip as shown in
figure 77.
3. Secure the end of the release rod (11) to the release
shaft (1) as shown in figure 78.
Notes:
1. Check distance between fuse trip flap and fuse to
match that of figure 79 once installation is complete.
Adjustments can be made at the release rod (11) and
lever (13) connection point.
2. The hooks (12) on the release shaft (1) should have the
same position shown in figure 76 when the VersaRupt-
er is in the open position with the A-mechanism open-
ing spring charged.
Fuse tripping control:
1. Turn the operating shaft of the mechanism a maximum
of 60° clockwise and return the handle back to the
neutral position (opening spring housing must not be
latched).
2. Mount a new fuse-link, or test fuse in accordance with
DIN 43625, in one of the phases.
3. If the distance between the fuse clips is longer than
shown in figure 79, max e + 8 mm, the adjustment
must be made with the fuse link resting on the fuse
clips on the fuse base.
4. The distance between the striker pin and the fuse trip
flag (15) must be between 3-6 mm. The fuse link is
allowed to sag but the distance between the striker
pin and fuse trip flag must not exceed 12 mm.
5. If the VersaRupter does not open when adjusted as
mentioned above, the adjustment must be repeated.
Figure 76
Figure 77
Figure 78
Figure 79
max
+
These operations must be carried out by
specialists only! Improper installation may
result in serious injury or death.
Summary of Contents for VersaRupter
Page 74: ...VersaRupter MV Indoor Switch Installation and Operation Manual 74 Auxiliary Switch Kit ...
Page 75: ...VersaRupter MV Indoor Switch Installation and Operation Manual 75 Chain Drive Assembly ...
Page 76: ...VersaRupter MV Indoor Switch Installation and Operation Manual 76 Left Hand Shaft Extension ...
Page 77: ...VersaRupter MV Indoor Switch Installation and Operation Manual 77 Mechanical Door Interlock ...
Page 80: ...VersaRupter MV Indoor Switch Installation and Operation Manual 80 HE HM Handles ...
Page 82: ...VersaRupter MV Indoor Switch Installation and Operation Manual 82 Notes ...