K2 Mini Rail 385mm + screws

It is a short rail, less than 40 centimetres long, that is fixed directly on the crest of the corrugated trapezoidal sheet, and the panel is then fastened onto it. The advantage is simple: you no longer need long rails stretched across the whole roof, so less material, less extra weight on the building and a faster installation. Under the base of each piece there is a rubber gasket which, tightened by the screw, seals the hole made in the sheet and does not let water in.

The set is 385 mm long, 85.4 mm wide and 31.4 mm high and weighs 0.322 kg, so the panel sits practically flush with the roof, following its slope. The pack also includes the self-tapping screws with sealing washer, of 6 mm, with which it is fixed to the sheet, plus the EPDM gasket - they do not have to be bought separately. The channel on the upper side directly accepts the panel clamps, so on each support either two neighbouring panels or the end of a row can be fastened. If the roof has a shallow slope and you want the panels slightly tilted towards the sun, there are the MiniFive MK2 adapters. The parts are made of aluminium and stainless steel, so they do not rust and require no maintenance.

K2 MiniRail MK2 Set, article code 2004211, GTIN 4251786207954; overall size 385 x 85.4 x 31.4 mm, mass 0.322 kg. Materials: EN AW-6063 T66 aluminium with natural (mill) finish, EPDM sealing gasket on the seating base, A2 stainless steel fixing elements; the delivery includes thread-forming self-tapping screws with sealing washer, 6 mm diameter. Compatible with the K2 Clamp MC 25-40 and K2 Clamp EC 25-40 clamps, for module frames with a height of 25-40 mm; for tilted mounting on a shallow slope the K2 MiniFive MK2 Front (2004212) and MiniFive MK2 End (2004213) adapters are used. Packing 40 pcs/box and 960 pcs/pallet, tariff code 7610 90 90.

Who it suits

Suitable for trapezoidal sheet metal roofs - halls, outbuildings, houses with metal roofing - where the panels are mounted parallel to the roof, and the module frame has a height of 25-40 mm.

Terms explained

• Trapezoidal sheet: Corrugated sheet with a stepped profile, used on halls and outbuildings; the support is fixed on the high part of the corrugation, where water does not stand.
• EPDM gasket: A rubber ring resistant to sun and extreme temperatures, which is compressed under the part and seals the hole in the sheet.
• Self-tapping screw: A screw that forms its own thread in the sheet, without the need for drilling and for a nut on the other side.

Technical specifications

Recommended applications

• Mounting PV modules parallel to the roof on trapezoidal sheet
• Industrial roofs and halls with sandwich panels
• Residential systems on trapezoidal metal roof tiles
• Low-elevation mounting, combined with the MiniFive MK2 adapters

Technical details

Specifications confirmed from the manufacturer's datasheet

K2 MiniRail MK2 Set (article code 2004211, GTIN 4251786207954) is a short rail intended for mounting photovoltaic modules directly on trapezoidal sheet metal roofs, without the need for a continuous longitudinal rail. The overall dimensions are 385 mm length, 85.4 mm width and 31.4 mm height, and the mass of one set is 0.322 kg.

The set is made of EN AW-6063 T66 aluminium with a natural (mill) finish, an EPDM sealing gasket on the seating base and A2 stainless steel fixing elements. The delivery includes the thread-forming self-tapping screws with sealing washer, 6 mm in diameter, needed for fixing on the crest of the sheet; the EPDM gasket compressed under the base ensures the tightness of the penetration. The integrated MK2 channel directly accepts the module clamps, so on each short rail neighbouring modules or field ends can be fastened.

MiniRail MK2 is combined with the K2 Clamp MC 25-40 and K2 Clamp EC 25-40 clamps for module frames with a height of 25-40 mm. For tilted mounting on roofs with a shallow slope there are the K2 MiniFive MK2 Front (2004212) and MiniFive MK2 End (2004213) adapters. The standard packing is 40 pieces/box and 960 pieces/pallet, and the declared tariff code is 7610 90 90.