en.Wedoany.com Reported - Opsun Systems, a racking supplier headquartered in North Carolina, announced that its new SunRail Inverter Rack is now available and shipping. The product is designed to eliminate the non-standardized, ad-hoc field improvisation often encountered when installing heavy string inverters on commercial and industrial (C&I) flat roofs, and is an extension of the engineering architecture of the existing flat roof product portfolio.
The product is structurally optimized for low-slope surfaces (up to 7°) under harsh environmental loads. The frame is constructed from 6000-series structural aluminum with 306 stainless steel bolts and nuts. Depending on the specific project configuration, the design can withstand maximum wind loads of up to 180 mph and maximum snow loads of up to 100 PSF. The hardware footprint of a single independent inverter rack unit occupies 15 square feet of roof space, with a base rack total weight of 60 lbs, exerting a localized dead load on the roof membrane between 5 and 15 PSF.
The modular mounting structure is expandable, supporting 1 to 6 inverter units per row, allowing for field flexibility based on different electrical string layouts. To reduce on-site labor time for engineering, procurement, and construction (EPC) contractors, rack components are pre-assembled and shipped from the manufacturer's regional production lines. The system uses a standard 10° tilt angle, with a customizable maximum tilt angle of up to 20° available upon request. All connection points utilize a standardized single-nut hardware configuration. All mounting components can slide freely within integrated rail channels, enabling mechanics to make precise adjustments for uneven roof surfaces, tapered insulation, or structural irregularities without the need for custom field cutting or machining.
The product line also includes an optional universal Inverter Cover accessory, made of folded aluminum, designed to protect the components from direct solar radiation. The cover features open sides to promote unobstructed ambient airflow for thermal management and incorporates an integrated hood mechanism that lifts like a car hood, allowing maintenance technicians full access to the internal wiring compartment without removing the rack frame. This protective accessory is explicitly compatible with a large hardware series, including SolarEdge three-phase inverters with Synergy Technology (ranging from SE80KUS to SE120KUS configurations). For anchoring, the base rails are compatible with standard commercial roof attachment systems, including OMG, U-Anchor, S-5!, and Facet systems, suitable for various roof types such as built-up, TPO, EPDM, asphalt, and standing seam metal roofs.
François Gilles-Gagnon, President of Opsun Systems, stated that EPC contractors have repeatedly reported that roof inverter placement remains a field issue lacking standardized solutions. This inverter rack is built on the same engineering logic, using an aluminum structure designed for actual field conditions and quick installation. Opsun Systems manufactures its structural aluminum product portfolio at its two North American facilities in High Point, North Carolina, and Cornwall, Ontario, supporting commercial, industrial, and residential sectors for flat roof, ground mount, carport, and sloped roof deployments.
