Samlex America 20A Step-Down DC-DC Converter 24V To 12V High-Efficiency Design

20A Non-Isolated Step-Down 24VDC-12VDC Converter

This high efficiency switch-mode step-down DC-DC converter converts an input voltage of 24 VDC nominal (range 20 VDC to 35 VDC) to a highly regulated output voltage of 12 VDC nominal (13.8 VDC) at 20 Amps. The SDC-23 DC-DC converter is non-isolated (no galvanic isolation between input and output) and meant for use in negative ground systems. Features include overvoltage/short-circuit protection, temperature compensated current limit, output-side overvoltage protection, input-side overvoltage/ transient protection and input-side reverse polarity protection. The SDC-23 DC-DC converter is designed for heavy duty applications.

Features:

• Advanced switchmode design
• Mount in almost any location
• Compact and light weight
• Reverse polarity protection
• High efficiency
• Current limiting circuit
• Overvoltage crowbar circuit
• Non-Isolated for negative ground system

Specifications:

• Input: 20-30 VDC
• Output: 13.8 VDC
• Amps: 20 Amps
• Weight: 2.2 (lbs)
• Weight: 1 (kg)
• Dimensions: 7.75 x 4.75 x 2.4 (in)
• Dimensions: 19.7 x 12.1 x 6.1 (cm)
• Warranty: 2 Year Limited

Applications:

• Earth moving equipment
• Heavy trucks
• Buses
• Marine vehicles
• CB radios
• 12 Volt lighting systems
• AM/FM sound systems

Power Fit Shop is where resilience, innovation, and modern preparedness come together. With decades of combined expertise and over 20 years of trusted service on eBay, we have completed more than 65,000 transactions, earning the confidence of families, travelers, and professionals who expect reliability in every situation.

We curate premium wellness, emergency, and power solutions — including top-quality power stations and solar products — designed to meet the highest standards of performance and durability.

As certified dangerous-goods shippers, we ensure safe, compliant delivery of advanced power systems across the United States, including Alaska, Hawaii, Puerto Rico, and all U.S. territories.

We’re proud to offer free replacement shipping to and from these regions when a factory-approved replacement is required.

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Larger or dangerous-goods items may require additional handling time or ship from different warehouse locations depending on availability.

Please review the return policy shown on this listing. If a factory-approved replacement is required, we work with the manufacturer to support you. For select items, we offer free replacement shipping to and from Alaska, Hawaii, Puerto Rico, and U.S. territories when a replacement is approved.

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