RS PRO DC-DC Converter, 5V dc/ 4A Output, 67 → 137 V dc Input, 20W, Chassis Mount, +70°C Max Temp -40°C Min Temp

The RS Pro R Series of 20 W railway isolated DC-DC converters features wide input voltage ranges. These isolated DC-DC converters are compliant with the applicable railway standards and are designed for harsh environments, with sealed IP66 rated casing. The R series of railway DC-DC power supplies operates from -40 to +70°C and they also offer up to 82% efficiency. These DC-DC power modules feature a rugged input filter with full reverse polarity and inrush current limitation protection built-in as standard.
Typical uses for these R series isolated DC-DC are in Railway applications.

Convection cooled, high efficiency
Wide input voltage ranges
Tested to RIA12, EN50155 & EN50121
High input to output isolation
Input Undervoltage-Lockout
Short circuit protected with automatic recovery
Wide operating temperature range
Diecast case with integral mounting flanges
Robust, keyed, latching, Deutsch connectors
IP66 rated

RIA12, EN50155, EN50121 and EN61373: 2010 cat 1 for shock and vibration