Tesla Powerwall 2 AC Installation Manual page 20

Concrete or Masonry
•
Minimum strength must be 18 MPa (concrete), 12 MPa (clay brick), or 11 MPa (masonry).
• Use at least four (one in each corner, in any available anchor slot) 10 mm fasteners
with washers, of sufficient length for at least 50 mm embedment into the material.
Figure 14: Anchoring the Bracket to Concrete or Masonry
Channel Strut (Unistrut)
• Struts must be minimum 42 mm x 42 mm x 2.5 mm thick.
•
If mounting on wood studs, attach the strut to at least three studs, using at least one
10 mm wood screw with washer per stud, of sufficient length for at least 64 mm
embedment into the studs.
•
If mounting on metal studs, attach the strut to at least three studs, using at least two
10 mm sheet metal screws with washers per stud, of sufficient length to penetrate at
least 3 threads beyond the studs.
•
To attach the bracket to the struts, use at least four (one in each corner) 10 mm
hexhead screws with washers and strut nuts.
Figure 15: Anchoring the Bracket to Channel Strut
18 Powerwall Installation Manual