Samlex 12A Non-Isolated Step-Down 24VDC-12VDC Converter - Heavy Duty Applications

The SDC-15 24VDC to 12VDC Converter is the perfect solution for marine and boating applications, ensuring reliable and efficient power conversion for all your vessel’s electrical needs. Designed to withstand the demanding environments of marine settings, this heavy-duty step-down converter provides a stable 12VDC output from a 24VDC input, making it ideal for a wide range of onboard systems.

Product Overview

The SDC-15 is a non-isolated switch-mode DC-DC converter engineered for negative ground systems, delivering a consistent 12VDC (13.8 VDC nominal) at up to 12 Amps. With its robust protection features and high efficiency, it ensures your marine electronics operate smoothly and safely, even in harsh conditions.

Key Features

• Advanced switch-mode technology for high efficiency
• Flexible mounting options for easy installation on any vessel
• Compact and lightweight design to save valuable space
• Automatic reverse polarity protection to prevent damage
• Cycle-by-cycle current limiting for enhanced safety
• Comprehensive overvoltage protection safeguards your equipment
• Short circuit protection ensures reliable operation

Technical Specifications

Parameter	Specification
Input Voltage	20-35 VDC
Output Voltage	13.8 VDC
Output Current	12 Amps
Weight	2 lbs (0.9 kg)
Dimensions	7.75 x 5 x 2.5 in (19.7 x 12.7 x 6.4 cm)
Warranty	2 Year Limited

Applications for Marine and Boating

• Powering CB radios and communication systems
• Supplying 12 Volt lighting systems around the vessel
• Operating AM/FM sound systems for entertainment
• Supporting navigation and electronic equipment
• Running auxiliary systems in heavy marine vehicles
• Ensuring reliable power for heavy trucks and earth-moving equipment on boats
• Providing stable power to marine buses and transport vessels

Protection Features

The SDC-15 is equipped with multiple protection mechanisms to ensure both the converter and your marine equipment remain safe:

• Overvoltage Protection: Prevents damage from voltage spikes
• Short Circuit Protection: Automatically shuts down in case of a short
• Temperature Compensated Current Limit: Maintains safe operating temperatures
• Transient Protection: Shields against voltage transients on the input side
• Reverse Polarity Protection: Guards against incorrect connections

Installation and Usage

The SDC-15’s compact size and versatile mounting options make it easy to install in various locations on your vessel. Whether mounted inside the cabin or in the engine compartment, its lightweight design ensures it won’t add unnecessary bulk. Refer to the Owner's Manual (PDF) for detailed installation instructions and safety guidelines.

Compliance and Safety

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Additional Resources

• Owner's Manual (PDF)
• Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

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