Schneider electric abs industrial boxes schneider electric nsyaedh20tb a set of 2 hinges for use with thalassa tbs and tbp boxes with cover depths of 20mm the hinges are manufactured from thermoplastic polycarbonate and are supplied with fixing screws and fixing elements for securing to cover and enclosure respectively schneider electric nsyaedh20tb abs industrial box set of 2 hinges for 20mm lid