Installation Guide

TopTile
Mounting System
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SunModo Self-Bonding System
SunModo developed a proprietary grounding and bonding system that is built into the mounting hardware for
the rails, clamps and splices. We provide further grounding through all of the SunBeam racking components
including the Pipe Caps, Beams, Posts and Post Base Plates. All hardware meet UL 2703 Grounding and Fire
Standards tested by ETL.
The basis of the system is our patented stainless steel floating grounding pin which is designed to be captive
in the mounting components and provides a bonding path from the PV panel frames to the rails and rail
splices, and finally to the ground lug. The self-grounding and bonding system is for use with PV modules that
have a maximum series fuse rating of 30A. The maximum number of PV modules is limited by the system
voltage, so in a system has multiple inverters, the SunModo racking system can theoretically go on forever.
Finally we have added a spring and Blue 242 Loctite to our Mid Clamp assemblies. The sprig keeps the Mid
Clamp in the open position ready to receive the solar module. The Blue Loctite is a light bonding agent
allowing the T-Bolt engagement into the Rail when the Collar Nut is turned from above. The Blue Loctite has
the added benefit of being an anti-seize agent for stainless steel hardware in the area where it is applied. For
additional anti-seize protection refer to the ‘Tools Required for Installation’ section of this document.
Mid Clamp with Ground Pins
Similarly, the rail splices the grounding pins, eliminating the need for extra bonding components.
Rail Splices with Grounding Pins