Collection: DC to DC Converters

Whether you're running 24-volt house banks alongside 12-volt electronics, or feeding a 24-volt thruster from a 12-volt system, matching your onboard voltages without rewiring everything is exactly what these units handle. Mastervolt's DC Master converters step down from 24V to 12V and come in 6, 12, and 24 amp versions, so the right choice depends on the combined draw of whatever you're powering, not just the largest single load. Samlex covers both step-up applications (9 to 18V input to 24V output) and fully isolated step-down configurations, with the 360W isolated series handling input ranges from as low as 9 volts up to 120 volts depending on the model, making them well suited to larger or more complex DC systems.

Before choosing, confirm your source voltage, your target output voltage, and your peak current requirement. Isolation matters if you need to prevent ground loops between systems or protect sensitive electronics from noise on the main bus. Samlex's fully isolated units are the answer there. Amperage headroom is worth building in since converters running near their rated limit run warmer and wear faster. Both Mastervolt and Samlex are established names in marine power, and all products here are genuine goods sold by an authorized dealer with full manufacturer warranty.