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SM SOLAR <br />MOUNT 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 />Required if not using approved integrated grounding microinveters <br />WEEBLUG CONDUCTOR - UNIRAC P/N 008002S: <br />Apply Anti Seize and insert a bolt in the aluminum rail and through the clearance hole <br />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 />TORQUE VALUE 10 ft lbs. (See Note on PG. A) <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, deburr hole and bolt thru both rail walls per table. <br />TORQUE VALUE 5 ft lbs. (See Note on PG. A) <br />See ILSCO product data sheet for more details, Model No. GBL-4DBT. <br />NOTE: ISOLATE COPPER FROM ALUMINUM CONTACT TO PREVENT CORROSION <br />GROUNDING LUG - BOLT SIZE & DRILL SIZE <br />GROUND LUG BOLT SIZE DRILL SIZE <br />WEEBLug 1/4"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 />STANDARD SYSTEM GROUNDING J <br />Í <br />ONLY ONE LUG PER ROW OF MODULES: <br />Only one lug per row of modules is <br />required. See Page E for additional lugs <br />required for expansion joints. <br />TERMINAL TORQUE, <br />Install Conductor and <br />torque to the following: <br />4-6 AWG: 35in-lbs <br />8 AWG: 25 in-lbs <br />10-14 AWG: 20 in-lbs <br />Star Washer is <br />Single Use Only <br />WEEBLUG <br />Single Use Only <br />TERMINAL TORQUE, <br />Install Conductor and <br />torque to the following: <br />6-14 AWG: 5ft-lbs <br />2318 Downie Pl <br />06/07/22