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IB01602046E
Instruction Booklet
Page
12
Effective: July 2010
2-Position Contactor Based
Non-Automatic Transfer Switch
4.3 Mounting Procedure
All equipment enclosures and power panels are of the same
design. Only the overall physical dimensions change. Note that
the enclosure is provided with four teardrop (elongated) mounting
holes, two in the top mounting flange and two in the bottom.
Cable entry holes are not part of the enclosure when shipped
from the factory and must be provided in the field, either before
or after mounting the enclosure. Cable access may be from the
top, bottom, and/or side.
Figure 10.Typical (40A-400A) Contactor Based Non-Automatic
Transfer Switch Equipment (Door Open).
With the enclosed non-automatic transfer switch equipment
unpacked and ready for mounting, proceed with the following
steps.
Step 1:
The non-automatic transfer switch enclosure door is
hinge mounted with removable hinge pins. To simplify
the mounting procedure and avoid damaging the door-
mounted logic panel, it is strongly suggested that the
door be carefully removed and put it in a safe place until
mounting is complete. To remove the door, open the
door and label and disconnect the wiring at the back of
the logic panel. Remove the wire ties securing the har-
ness to the inside of the door. Carefully remove the
hinge pins then the door from the enclosure.
Step 2:
Install the required upper and lower mounting bolt
anchors and the two upper mounting bolts in the mount-
ing surface.
Step 3:
Gently lift the enclosure and guide the teardrop holes in
the upper mounting flange over the upper mounting
bolts. Do not completely tighten the bolts at this time.
Step 4:
While still supporting the enclosure, install the two lower
mounting bolts in the lower mounting flange. Again, do
not completely tighten the bolts at this time. Use shims,
if required, to prevent deformation of the enclosure if the
mounting surface is distorted.
Step 5:
Tighten all four mounting bolts after any required shim-
ming is completed.
Figure 11.Typical Mounting of the Non-Automatic Transfer
Switch to a Mounting Surface.
Step 6:
Double check to ensure that all packing and shipping
materials have been removed.
CAUTION
SINCE THE ENCLOSED NON-AUTOMATIC TRANSFER SWITCH
MUST BE LIFTED INTO PLACE FOR MOUNTING, BE CERTAIN THAT
ADEQUATE RESOURCES ARE AVAILABLE FOR LIFTING TO AVOID
PERSONNEL INJURIES OR EQUIPMENT DAMAGE.
CAUTION
EXTREME CARE SHOULD BE TAKEN TO PROTECT THE TRANSFER
SWITCH FROM DRILL CHIPS, FILINGS, AND OTHER CONTAMI-
NANTS WHEN MAKING THE CABLE ENTRY HOLES. EXTREME
CARE SHOULD ALSO BE TAKEN WHEN MOUNTING THE ENCLO-
SURE TO PREVENT COMPONENT DAMAGE OR A FUTURE MAL-
FUNCTION.
POWER PANEL
LOGIC PANEL
TRANSFORMER
VOLTAGE
PANEL
SELECTION
AND