Torsionally rigid system rail of extruded aluminium, matt anodised | large distances between suspension points up to 3.5m attained with robust connector elements Sheet steel luminaire insert and gear tray (metallic grey coated, similar to RAL 9006) | upper side of reflector of translucent plastic (PMMA), orange tinted or colourless to choice | underside of reflector, primary reflector (lamp channel) and specular louvre of matt anodised aluminium | plastic end caps, metallic grey (similar to RAL 9006) | rotary catches entirely of metal with colour-accentuated plastic cladding to suit Installation and electrical contact of luminaire inserts within rail without use of tools | mechanical locking with simple, easy to use rotary catches | installation of luminaire inserts as uninterrupted trunking row - minimum distance between 2 luminaire inserts: amin = 307mm | Connectors and suspension elements entirely of metal |