Polar Bear East/West 10 Degree Installation Manual
9910022 Rev A
14
Figure 11 Tilt Module to Attach to East/West Support
4.
Secure Claws to Supports using the 3/8-16 serrated flange nuts. The recommended torque is 28-
30 ft-lb (37.9-40.7 N-m).
5.
Continue building the array from North to South (or South to North) by bringing the next
module into place.
a.
The bolts on the Northern (or Southern) sides of the array are already in place from
the prior module mounting.
b.
Add bolts to the claws and supports that do not have bolts.
c.
Secure the bolt connecting two claws and a Support using the 3/8-16 serrated
flange nuts.
d.
At the last module in a row or column, ensure that the bolt attaching one claw and
support are secured using the 3/8-16 serrated flange nuts.
e.
Connect the module to module wiring.
Repeat this process until all modules are mounted.
Step 5: Electrical Grounding
Please consult with national and local building code(s) for complete grounding requirements for your
installation.
The Polar Bear mounting system is UL and ETL listed to UL 2703 (Rack Mounting Systems and Clamping
Devices for Flat-plate Photovoltaic Modules and Panels). Polar Bear mounting systems enable installers
using modules included in PanelClaw’s UL 2703 listings to quickly and easily establish UL/ETL-certified
electric bonds between all connected array components, including modules and mounting system
components, without the use of additional grounding devices, e.g. ground lugs and copper wire.
Multiple strings with a combined fuse rating of up to 125 amps can be grounded via a single ground lug
acting as a Grounding Electrode Conductor (GEC). When grounding devices are installed according with
the approved methodology and capacity below, the connections described above meet all the
requirements outlined in NEC 690.43.
