The 90° Horizontal Elbow provides essential support and enables seamless cable management throughout your cable routing system. Class 1: Designed for use with NEMA Classes 12B and 12C cable trays. With its pre-galvanized steel base and interlocking polymer sidewalls, the PreF. Need technical support or a quote? We're here. Diagonal Corner R=75 mm (Standard) 2. Curve Corner R=300 mm (Request)GRP-Elbow 90° for cable tray KK, small, with unperforated side rails, with moulded connector, glass fiber reinforced polyester, pressed, RAL 7032, pebble grey Refer to the product sheets for more information on product details and compatibility. Enhance cable routing with Primus.