Cleanflex power and data cables for cable-track-equipped machines in cleanroom environments have a special polyurethane (PUR) outer jacket to minimize the release of cable dust into the air. The jacket compound was approved by the Fraunhofer Institute for Production Techniques and Automation for meeting minimum particle emissions in ambient air requirements. The HF power cable is sized 20–14 AWG, while the shielded HF-C power cable is 20–16 AWG. These HF and twisted-pair, shielded HF-TP-C data cables are available in sizes ranging from 24–22 AWG. Each power and data cable comes in varying conductor configurations.