"DC/DC converter THN 15WIR series, 15 W, 18-75/±12.0 VDC, 25.4 mm x 25.4 mmRugged 15 Watt converter in 1"" x 1"" standard metall packageRailway approvals to meet EN 50155 and 61373Ultra wide 4:1 input voltage rangeProtection against shortcircuit, overvoltage and undervoltageI/O isolation 3000 VDCRemote on/off"