Cable tray systems are engineered support structures designed to route, support, and protect insulated electrical cables used for power distribution, control, instrumentation, and communication. There are several types of cable trays, including ladder, perforated, solid bottom, basket, and channel trays. Channel tray can protect against electromagnetic inte, is a welded wire-mesh cable management system made of high-strength steel wire. This guide will help you choose the best cable tray.