HWB – 75W, DC-DC Converter for Railway and Industrial Applications | Polytron 75W to 200W Industry Standard Half Brick Footprint Adjustable Output Voltage Safety Meets UL60950-1, EN60950-1 and EN50155 Terminal Block Optional Railway Applications Download data sheets Industrial HWB100 (1.14 MB) HWB150 (912 KB) HWB200 (998 KB) HWB75 (1.02 MB) Rail & Transportation HWB100 (1.14 MB) HWB150 (912 KB) HWB200 (998 KB) HWB75 (1.02 MB)