LT–IXFMR36–1
9
Charles Industries, Ltd. All rights reserved. Printed in the United States of America.
Choosing Mounting Location
After selecting a wiring method, the mounting location must be chosen. Like any piece of transformer operated
equipment, the IsoTransformer will produce a noticeable “hum” when it is energized, although not nearly as loud
as non-encapsulated transformers. Consideration should be given to not mounting the IsoTransformer in or im-
mediately adjacent to areas where you will prefer it quiet, such as sleeping quarters. Locations to avoid are under
bunks or on the opposite side of an uninsulated bulkhead immediately adjacent to the head of a bunk. The Iso-
Transformer should be mounted either vertically on a bulkhead with the access panel at the bottom or horizontally
on the deck in a protected area away from rain or spray. When mounted vertically the bottom must be at least 24
inches above the deck or other equipment to avoid damage from splash and to ensure adequate access to wiring
connections. The unit must be mounted in a secure location capable of supporting the full weight of approximately
60 pounds. Proper ventilation around the case is important. Allow at least six inches on all four sides of the unit
for air circulation and cooling. During normal operation the case of the IsoTransformer may reach high tempera-
tures. To avoid burns locate the IsoTransformer in an area where persons will not come in contact with the unit.
Four
/
-inch holes,
/
-inch (without cover) from each end of the IsoTransformer are provided for rigging and
hoisting the unit (Figure 4). With the cover on, use the holes located 2
/
-inches from the front. Typically,
shackles are used for hoisting.
Access to Input and Output Terminal Blocks
Four 3/8-inch Holes for
Rigging and Hoisting
(two on each side)
Cord Grip Connectors
See Table 1
Figure 4. IsoTransformer Access Openings
Do not store equipment on or next to transformer. This unit is designed to operate hot and must have
free air flow to prevent overheating or charring of adjacent materials.
WARNING – FIRE HAZARD
Choosing Mounting Hardware
As with any marine equipment, secure mounting is of utmost importance. You will need to provide four bolts or
screws to secure the unit. They must be a
/
-inch in diameter. The screws or bolts you choose should be backed
with a flat washer and kept vibration-free with a split-ring lock washer. If using bolts, they must be secured on
both sides of the bulkhead and also backed with a washer or washer plate. If using screws, they should be at
least 1” long. All hardware must be corrosion-resistant stainless steel or cadmium-plated steel.