DC/DC Converters for IP65 Applications

MTM Power’s primary switched DC/DC converters PCMDS150WK-IP65 are specially designed for use in vehicle and rail industries, as well as industrial and telecommunication applications.

The push-pull topology used while developing these converters enables a wide input voltage range with high efficiency. The 150W converters are available with a wide input range for battery voltages of 24V, 36V, 48V, 60V, 72V, 80V, 96V and 110V according to EN 50 155.

With the help of a transformer and a secondary linear choke, a galvanically isolated output voltage of 24 V is produced which is adjusted by pulse-width modulation according to the current mode principle.

The UI characteristic of the output voltage is suitable for the supply of difficult loads such as capacitance, motors or halogen lamps. The dimensions are 192mm x 115mm x 68mm (length x wide x height).

The thermo-selective vacuum encapsulation (EP 1 987 708, US Patent No 8,821,778 B2) guarantees uniform heat dissipation within the modules as well as excellent resistant to environmental influences such as shock, vibration and moisture.

A remarkable feature of the converters is that they are suitable for applications with protection degree IP65 and thus they are complying with EN 60 068-2-1/2-2/2-11/2-14/2-30.

The converters need no ground load and are short-circuit protected by primary and secondary power limiting. They are maintenance-free, comply with to EN 50 155 / 50121-3-2 / 45 545-2 for the use in railway applications and fulfil the low voltage directive.

They show a mechanically and electrically rugged design using SMD technology and undergo an automatic piece-by-piece test. Cooling is achieved by free convection.

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