16 AWG power limited tray cable with one pair of non-shielded stranded bare copper conductors, insulated with black and white PVC and a black PVC jacket. Also UL rated as instrumentation tray cable (ITC).
16 AWG type EX thermocouple extension cable with 1 aluminum/polyester shielded pair of solid chromel/constantan conductors. Purple and red PVC insulated wires with drain wire and purple flame retardant PVC jacket.