SKU: CW67249
UPC: 622988061745
MPN: SDC-30
The Samlex 30A Non-Isolated Step-Down 24VDC-12VDC Converter (model SDC-30) is a high-efficiency switch-mode DC-DC converter engineered for marine electrical systems. It converts a nominal 24-volt input (operating range 20–32 VDC) down to a highly regulated 12-volt output at 30 amps continuous capacity. Built for negative ground systems, this converter delivers the reliable voltage transformation that boat owners and marine technicians depend on when integrating dual-voltage electrical architectures.
At 30 amps output capacity, the SDC-30 handles substantial 12-volt loads—GPS plotters, fish finders, radio systems, LED lighting arrays, and auxiliary battery charging. The switch-mode design minimizes heat generation and power loss compared to linear regulators, critical in tight cabin spaces where thermal management matters. Built-in protection circuits guard against overload, reverse polarity, over-voltage conditions, and thermal shutdown, preventing cascade failures that can disable multiple onboard systems. Non-isolated topology means input and output share a common ground reference, the standard configuration for typical recreational and working marine vessels with unified electrical architecture.
Serious anglers upgrading from single 12-volt battery banks to dual 24-volt systems—whether for trolling motors, windlass systems, or larger auxiliary power demands—use converters like the SDC-30 to maintain compatibility with legacy 12-volt electronics. Commercial fishing operations, charter boat operators, and offshore anglers installing modern 24-volt alternators and house batteries rely on step-down converters to avoid rewiring entire instrument clusters. Compact dimensions (4 x 2 x 6 inches) and 1.2-pound weight allow installation in engine rooms, console lockers, or battery boxes without significant space compromise. Samlex America converters are recognized throughout the marine industry for reliability in salt-air corrosion environments and demanding duty cycles.
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Samlex America