Polar Bear III HD 5 Degree Installation Manual
9910034 Rev F
23
Grounding Instructions:
PanelClaw components within the array are required to be electrically bonded to other DC grounding
paths via the use of either a #12 or #10 AWG Cu bonding jumpers and a UL 467 listed Tyco solid wire
grounding assembly, part number 2106831-1, manufactured by Tyco Electronics Corporation. The
conductor size should be selected in accordance with NEC 690.45 and NEC 250.122.
To ground the array, a Tyco solid wire grounding assembly, part number 2106831-1, manufactured by
Tyco Electronics Corporation, must be installed on each Ballast Tray. As you run the copper wire
necessary to ground each module (not provided), ensure the same copper wire is run through every
Tyco solid wire grounding assembly on the Ballast Tray and secured per Tyco Electronics Corporation,
LLC specifications (www.te.com). See
To attach the Tyco grounding device/lug to the Ballast Tray, the mounting hex washer and threaded post
end should be installed to the specified hole in the ballast tray and torqued to 2.08 ft-lb (25 in-lb). (see
). Once the grounding device/lug has been attached to the ballast tray, a copper bonding
jumper from an acceptable DC grounded location outside of the array must be installed to the wire slot
end and torqued to 3.75 ft-lb (45 in-lb). For additional instruction regarding the installation of the Tyco
solid wire grounding assembly, please refer to the Tyco Electronics instructions sheet (document
number 408-10262) via their website www.te.com.
Figure 15 Ground Lug Attachment Location
Product Label located on
the end of every ballast tray
