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SM SOLARMOUNT INSTALLATION GUIDE PAGE <br />GROUNDING LUG MOUNTING DETAILS: <br />Details are provided for both the WEEB and Ilsco products. The WEEBLug has a <br />grounding symbol located on the lug assembly. The Ilsco lug has a green colored <br />set screw for grounding indication purposes. Installation must be in accordance <br />with NFPA NEC 70, however the electrical designer of record should refer to the <br />latest revision of NEC for actual grounding conductor cable size <br />WEEBLUG CONDUCTOR - UNIRAC P/N 008002S: <br />Apply Anti Seize and insert a bolt in the aluminum rail and through the clearance <br />hole in the stainless steel flat washer. Place the stainless steel flat washer on the bolt, <br />oriented so the dimples will contact the aluminum rail. Place the lug portion on the <br />bolt and stainless steel flat washer. Install stainless steel flat washer, lock washer and <br />nut. Tighten the nut until the dimples are completely embedded into the rail and lug. <br />See product data sheet for more details, Model No. WEEB-LUG-6.7. <br />ILSCO LAY-IN LUG CONDUCTOR - UNIRAC P/N 008009P: Alternate Grounding Lug <br />- Drill and bolt thru both rail walls per table. <br />See product data sheet for more details, Model No. GBL-4DBT. <br />GROUNDING LUG - BOLT SIZE & DRILL SIZE <br />GROUND LIG BOLT SIZE DRILL SIZE <br />WEEBLug 7/16”N/A - Place in Top SM Rail Slot <br />IlSCO Lug #10-32 7/32" <br />• Torque value depends on conductor size. <br />• See product data sheet for torque value. <br />SYSTEM GROUNDING 18 <br />