Isolated StepDown DCDC Converter 140V (75–150VDC) to 13.8VDC, 8A — Description This isolated buck DCDC converter accepts a voltage DC input and provides a regulated 13.8 VDC output at up to 8 A. Designed for applications that require a reliable lowvoltage supply from a voltage DC bus, the unit combines galvanic isolation with stepdown (buck) conversion to protect sensitive loads and simplify system power architecture. Key benefits Converts voltage DC to a stable 13.8 VDC output, eliminating the need for separate lowvoltage supply wiring or additional battery systems. Galvanic isolation separates input and output grounds, reducing noise, avoiding ground loops, and improving safety for sensitive electronics. Provides a convenient, compact solution to power 13.8 V devices directly from a 75–150 VDC source, saving installation time and reducing component count. Core features and attributes Functionality: Isolated stepdown (buck) DCDC converter that produces a regulated 13.8 VDC output suitable for 12 Vclass electronics and accessories. Input range: Operates from 75 to 150 VDC (nominal 140 VDC). Output rating: 13.8 VDC nominal output voltage with up to 8 A continuous output current. Isolation: Galvanic isolation between input and output for improved safety and noise immunity. Performance: Designed to provide a steady, lowvoltage supply from voltage DC sources; suitable for continuous operation within the specified input range. Compatibility: Intended for systems that provide 75–150 VDC input and require a 13.8 VDC supply at up to 8 A. Compatible with a wide range of 12 Vclass electronics and small power loads. Form factor and installation: Engineered for integration into professional electrical installations; please refer to the product's mechanical and electrical installation documentation for mounting and connector details. Typical applications Telecommunications and remote equipment: Power radios, repeaters, or control modules from central voltage battery buses or rectifier systems without adding separate 12 V infrastructure. Vehicle and battery systems: Supply 13.8 V accessories and control electronics from voltage traction or auxiliary battery packs in industrial vehicles, electrified equipment, or mobile platforms. Renewable and industrial power systems: Feed control panels, monitoring devices, or auxiliary loads from solar charge controller outputs, DC distribution busses, or industrial power supplies operating in the 75–150 VDC range. Why choose this converter Simplifies system design by providing a regulated lowvoltage supply directly from an available voltage DC source. Isolation adds an extra layer of protection and reduces interference risks for sensitive downstream electronics. The 13.8 V output is a practical choice for many 12 Vclass devices and systems that require a slightly elevated regulated voltage. Basic specifications (as stated) Input voltage: 75–150 VDC (nominal 140 VDC) Output voltage: 13.8 VDC Output current: Up to 8 A Topology: Isolated stepdown (buck) DCDC converter For safe and reliable operation, follow the manufacturer's installation and safety instructions, and confirm compatibility with your system voltage, grounding scheme, and load requirements.