TEQ 100-4816WIR - 

Traco 100W Single Output Regulated Isolated DC-DC Converter - TEQ-100 Series
The Tracopower TEQ-100WIR series of isolated, high performance DC-DC converters come with ultra-wide 4:1 input voltage range in a rugged, sealed metal case. These converters can be used with a temperature up to 85°C with natural convection cooling and up to 95°C with power derating. The TEQ-100WIR features output voltage trimming, remote ON/OFF and under voltage lockout. These DC-DC converters are suitable for a wide range of applications, including railway and battery operated systems, but they are particularly designed for industrial applications where no PCB mounting is possible and the module has to be mounted on chassis.