Converter 120W 67.2~154V-12V 10A DDR-120D-12

DC/DC converter with a power of 120W, designed to operate in demanding industrial conditions, and specifically in railway applications. The DDR-120D-12 model features a wide input voltage range (67.2~154V) and a stable output voltage of 12V, making it a universal solution for various devices powered from a DC bus.

Construction and application

Construction based on mounting on a DIN TS-35/7.5 or 15 rail facilitates integration with existing systems and ensures stable mounting in environments exposed to vibrations. Compact dimensions (width 32mm) allow for installation in limited space. This converter is ideal for powering control devices, automation, lighting or monitoring systems – anywhere where reliability and resistance to harsh conditions are required. The lack of a minimum load requirement is an additional advantage, allowing for efficient energy use even with variable current draw.

Safety and reliability

Applied protections (short-circuit, overload, overvoltage and reverse polarity) guarantee safe and long-lasting operation of the device. Input/output isolation at 4 kVdc provides additional protection against interference and damage. Compliance with EN50155 (railway) and EN45545-2 (fire safety in rail transport) standards confirms the high quality and compliance with the stringent requirements of the railway industry. The converter is adapted to operate in a wide temperature range (-40°C to +70°C), allowing it to be used even in extreme environmental conditions. The ability to briefly overload up to 150% of the nominal power allows for trouble-free starting of devices with high inrush current. Cooling is done by free air convection, which eliminates the need for additional fans and reduces the risk of failure. Output voltage adjustment allows for precise adjustment of power parameters to the needs of specific devices.