UNIRAC ULA - Bonding Connections & Grounding Paths

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  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  nal
system ground connection.
NOTE: Ilsco lug can also be used when secured to the side of
the rail.
WEEBLUG (OR ILSCO LUG)
SM RAILSM RAIL
2
2
2
2
1
1
1
1
SM RAIL
MICRO-INVERTER FLANGE
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 FRAME
SM RAILSM RAIL
MODULE FRAME
BONDING T-BOLT
2
2
2
1
1
1
3
3
3
Bonding Connections & Grounding Paths