ULA
PLANNING AND
ASSEMBLY
INSTALLATION MANUAL
INSTALLATION GUIDE
PAGE
13
BONDING MICROINVERTER MOUNT
RACK SYSTEM GROUND
Hex nut with captive lock washer bonds metal
microinverter fl ange to stainless steel T-bolt.
Serrated T-bolt head penetrates rail anodization to
bond T-bolt, nut, and L-foot to grounded SM rail
WEEB washer dimples pierce anodized rail to create bond
between rail and lug
Solid copper wire connected to lug is routed to provide fi nal
system ground connection.
NOTE: Ilsco lug can also be used when secured to the side of
the rail.
WEEBLUG (OR ILSCO LUG)
SM R
AIL
SM R
AIL
2
2
2
2
1
1
1
1
SM R
AIL
MICR
O-INVER
TER FL
ANGE
HEX NUT W/ CAPTIVE
LOCK WASHER
BONDING
T-BOLT
SOLID
COPPER WIRE
Aluminum mid clamp with stainless steel bonding pins that pierce
module frame anodization to bond module to module through
clamp.
Stainless steel nut bonds aluminum clamp to stainless steel T-bolt
Serrated T-bolt head penetrates rail anodization to bond T-bolt, nut,
clamp, and modules to SM rail
BONDING MIDCLAMP ASSEMBLY
MODULE FR
AME
SM R
AIL
SM R
AIL
MODULE FR
AME
BONDING T
-BOL
T
2
2
2
1
1
1
3
3
3
Bonding Connections & Grounding Paths
