CE, UL, CSA, Gost. Schneider Harmony XVS Electronic Alarms. The electronic Harmony-XVS alarms are acoustic signaling units used to indicate the operational status or processes of a machine system over long distances. These alarms are primarily used on conveyor belts, automated guided vehicles, and the doors of electrical control panels. Class II protection against electric shock according to EN/IEC 61140, IP54 protection according to EN/IEC 60529, 16 tones, black, CE marked. XVS 72 Electronic Alarms. Panel mounting according to DIN 72, 90 decibels at 1 meter, polycarbonate base. Order numbers 814-0507, 814-0516, 814-0519, and 814-0513 comply with standards EN/IEC 61000-6-2, EN/IEC 61000-6-3. Panel mounting according to DIN 96, 96 decibels at 1 meter, polycarbonate/ABS base. Order numbers 814-0538, 814-0531, 814-0535, and 814-0544 comply with standards EN/IEC 60947-1, EN/IEC 60947-5-1.