REQUIRED TOOLS
Required user-furnished installation tools include: (a) a ratchet
wrench with ½” and ¾” sockets, (b) a ½” and ¾” box end
wrench, (c) a battery operated drill with a 9/16” drill bit, (d) a
center-punch, (e) a suitable grounding jumper and electrically
insulated gloves as mentioned above, (f) electrical insulating
tape, (g) a multimeter to measure ac voltage, (h) and a padlock
that fits a 7/16” hole in the isolation switch latch.
INSTALLATION PROCEDURE FOR ANY PEDESTAL
OR DECOUPLER MODEL
Note: The photos used in the installation steps will show the switch being
connected to a SSD in a now discontinued MTP-42 pedestal. All steps remain
the same regardless of mounting pedestal model number.
1. Two 9/16” holes are required in the pedestal cover to mount
the isolation switch. It is very important to install this switch to
the one correct face of the cover for each pedestal model.
2. The correct cover face on the standard Dairyland pedestal
(MTP-36) is the face on which the head of the two pedestal cov-
er latch pins are visible near the bottom end of the cover. Two
9/16” holes in the cover are required for mounting the isolation
switch. Use the “Hole Location Template and Drilling Instruc-
tions” furnished with each isolation switch to drill these holes
and then remove the pedestal cover and lay it flat it so the two
holes are on the right or left side. Hole location is very important.
See Appendix for template information.
3. Open the isolation switch cover. If ON appears above the
right corner of the pull-out switch, then pull out by the handle,
rotate 180° and plug back in so OFF appears below the left cor-
ner of the pull-out switch and close the cover. If OFF appeared
when the cover was first opened, then leave as-is and close the
cover.
4. Remove the two brass nuts and stainless washer from each
stud projecting from the bottom of the enclosure, but leave the
two rubber gaskets on each stud.
5. Insert the two ½” studs of the switch through the two holes
drilled in the pedestal cover so the switch is upright (i.e., so the
nameplate is readable when the cover is later reinstalled on the
base). It may be necessary to slightly force the two studs closer
together or further apart to insert through the two holes if they
were not drilled precisely per the template hole location marks.
6. On the inside of the pedestal cover, install on each stud one
stainless steel washer and one hex brass nut threaded all the
way on the stud hand tight. Using a ¾” box wrench or ratchet
wrench, tighten each brass nut until the flange of the enclosure
is snug against the outside wall of the pedestal cover to assure
a good seal, but do not over tighten. Stop tightening when the
force required to turn the nut rather abruptly increases.
Dairyland Electrical Industries • P.O. Box 187 Stoughton, WI 53589 • 608-877-9900 • www.dairyland.com • [email protected]
Required Tools
Grounding Cables: BCL-1/0 (Left) BCL-2
(Right)
MTP-36 Cover Face
Switch On
Switch Off
Note: When the installation is to a PCR rated 10kA or higher, the BCL-1/0 grounding
cable is suggested and for any SSD, the BCL-2 is suggested.
