Newmar 48-12-6I DC-DC Convertr 20-56VDC To 13.6 Vdc @ 6A

The Newmar 48-12-6I DC-DC converter is purpose-built for serious boaters and marine operators who depend on reliable power distribution in mobile and offshore environments. This isolated converter transforms high-voltage DC input (20–56 VDC) down to a stable 13.6 VDC output at 6 amps, making it ideal for powering communication and navigation equipment on negative ground marine systems. Whether you're running VHF transceivers, GPS chartplotters, or voice/data navigation systems in harsh saltwater conditions, this converter ensures your critical electronics receive clean, regulated power without ground loop interference.

Built on proven Newmar engineering, the 48-12-6I features galvanic isolation between input and output, a critical design element that eliminates ground loop noise—a common problem in multi-battery marine systems where hull grounds can introduce hum into sensitive radio equipment. The wide input range (20–56 VDC) accommodates battery banks under charge, generator systems, or auxiliary power sources common on commercial and recreational vessels. At 9 pounds, it's compact enough for engine room or helm-console installation, yet rugged enough to handle the vibration, humidity, and temperature swings inherent to marine duty. The converter's efficient switching design minimizes heat output and power loss, extending the operational life of both the unit and your connected electronics.

This converter is essential for fishing vessels, commercial workboats, and cruising sailboats that operate on 24V or 48V battery systems but require standard 12V output for legacy or modern navigation equipment. Installation is straightforward on negative ground systems; for positive ground applications, Newmar's isolated series offers compatible alternatives. The 6-amp output capacity supports multiple transceivers or navigation units simultaneously, making it a reliable backbone for communications on the water. Boaters who have upgraded to higher-voltage electrical systems without replacing their entire instrument suite will find the Newmar 48-12-6I an economical solution that maintains compatibility, eliminates noise, and ensures that your most critical safety and navigation equipment operates at peak performance.