![]() The converters protect against over current, over voltage, under voltage, short circuits and over temperature. ![]() The operating baseplate temperature range is -40 to +105 degrees C, and heat sink options are available. Output voltages are 5.0, 12, 15, 24, 28, 48 and 53V DC, with isolation voltage up to 3000V AC. The OFQC40 and OFQC60 Series 40 and 60W quarter-brick DC/DC converters feature a wide 12:1 input voltage range covering potential distribution voltages of 9.0 to 75V DC or 14 to 160V DC, according to the EN50155 standard. They can accommodate a broad range of common battery and bus distribution voltages while operating with wide input voltage tolerances and fluctuations, says the company. Gresham Power Electronics, announces the availability of the Polytron extra wide input range DC/DC converters, specifically designed for railway applications. The main battery power may also fluctuate when feeding higher power systems onboard the train, requiring a DC/DC converter with a wide input range to handle variations in voltage. Our experienced team can modify an existing product or design a new product and deliver the right solution for your railroad application.To accommodate a host of electronic systems for safe operation as well as passenger comfort and convenience, a typical railway carriage distributes either 72 or 110V DC of battery power to systems which often require lower and regulated operating voltages via DC/DC converters. Schaefer offers custom engineering and manufacturing solutions for your heavy rail power supply challenges. There are considerable challenges in ensuring a stable power supply system in the railway industry as there are not only strict technical and performance requirements but also the need to conform to several international standards. ![]() Extra rugged construction ensures long-life, reliable operation in harshest environments and in the most demanding applications, including on-board electronics, as well as other transit vehicles, mining vehicles, and switches. ![]() Our unique railway power solution design and manufacturing allows flexibility in rail power conversion for an endless combination of input and output voltages. ![]() We specialize in custom railway power solutions for on-board and trackside heavy rail power supply applications that meet EN 50155 compliance. Schaefer’s railway grade power conversion products include AC-DC power supplies, DC-DC power converters, rectifiers and battery chargers and DC-AC sine wave inverters. ![]()
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