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Samlex SDC-30 30A DC-DC Step-Down Converter 24V to 12V

Manufacturer

Samlex

<h3>About Samlex America</h3><p>Founded in 1991 and headquartered in Burnaby, British Columbia, <strong>Samlex America</strong> has grown into one of the most respected names in power conversion technology. With a commercial footprint spanning more than 90 countries, Samlex serves a remarkably wide range of industries — from communications and mobile fleet management to marine, RV, off-road, and fixed off-grid installations. Whether you need to power sensitive electronics in a remote cabin or keep a commercial work truck running smoothly in the field, Samlex engineers a solution built to last.</p><h3>A Complete Power Conversion Lineup</h3><p>What sets Samlex apart from one-trick-pony manufacturers is the sheer breadth and integration of their product ecosystem. Their catalog spans AC-DC power supplies, DC-DC voltage converters, solar panels and kits, battery accessories, transfer switches, and solar charge controllers. At the heart of the lineup, however, are two product families that have earned Samlex its stellar industry reputation: <a href="/7541-samlex-power-inverter-14297">power inverters</a> and <a href="/7541-samlex-battery-charger-14307">battery chargers</a>.</p><p><a href="/7541-samlex-power-inverter-14297">Samlex power inverters</a> are available in both pure sine wave and modified sine wave configurations, covering an enormous range of wattage requirements. Pure sine wave models — like the flagship NTX and EVO&trade; Series — deliver power that is virtually identical in quality to utility grid power, making them ideal for sensitive electronics, medical devices, and modern appliances. For users who need dependable DC-to-AC conversion in RVs, boats, or work vehicles, Samlex inverters are a go-to choice trusted by engineers and hobbyists alike.</p><p>On the charging side, <a href="/7541-samlex-battery-charger-14307">Samlex battery chargers</a> employ switched-mode technology to deliver efficient, quiet, and intelligent charging across 12V and 24V platforms. Their chargers are compatible with a wide variety of battery chemistries — including flooded lead-acid, AGM, GEL, and lithium-ion — making them a versatile fit for everything from marine deep-cycle banks to off-grid energy storage systems.</p><h3>Industries Served</h3><p>Samlex&apos;s versatility is one of its most compelling traits. Their products are deployed across an impressive range of real-world applications:</p><ul style="list-style:disc"><li><strong>RV &amp; Camping:</strong> Stay powered on the road or at the campsite without relying on shore power or noisy generators.</li><li><strong>Marine:</strong> Reliable power conversion for onboard electronics, navigation systems, and creature comforts on the water.</li><li><strong>Mobile Fleet &amp; Work Trucks:</strong> Keep tools, lighting, and communication equipment running efficiently from your vehicle&apos;s battery system.</li><li><strong>Fixed Off-Grid:</strong> Pair Samlex inverters and chargers with solar panels for a complete, self-sufficient energy system.</li><li><strong>Communications:</strong> Mission-critical backup power for radio base stations, repeaters, and 24/7 communication infrastructure.</li><li><strong>OEM &amp; Commercial:</strong> Custom power solutions built to specification for industrial and commercial integration projects.</li></ul><h3>Built on a Foundation of Reliability</h3><p>Samlex&apos;s commitment to engineering quality is evident in the protection features baked into their products. Many units include multiple layers of fault monitoring — scanning for adverse conditions thousands of times per second — along with thermal management systems that activate cooling only when necessary to reduce noise and energy draw. It&apos;s this level of attention to detail that has made Samlex a trusted partner for demanding commercial and industrial markets worldwide for over three decades.</p>

Part Number

SDC-30
09/12/2036 6:38 AM
Sale Price

$159.10

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Samlex SDC-30 is a high-efficiency switch-mode step-down DC-DC converter designed to convert 24 VDC nominal input (range 20-32 VDC) to a precisely regulated 13.8 VDC output at 30 Amps continuous. This non-isolated converter is engineered for negative ground systems and provides reliable power conversion for trucks, buses, marine vessels, and heavy equipment operating on 24V electrical systems while powering 12V accessories and electronics.

Key Features:

  • Advanced switch-mode technology delivers high efficiency and minimal heat generation
  • 30A continuous output capacity at 13.8 VDC regulated output voltage
  • Wide input voltage range: 20-32 VDC accommodates voltage fluctuations
  • Comprehensive protection: reverse polarity, overload, over-voltage, over-heating, and short circuit
  • Cycle-by-cycle current limiting prevents damage during overload conditions
  • Compact, lightweight design (1.2 lbs) mounts in tight spaces
  • Non-isolated design optimized for cost-effective negative ground applications

Technical Specifications:

  • Input Voltage: 20-32 VDC (24V nominal)
  • Output Voltage: 13.8 VDC regulated
  • Maximum Continuous Current: 30 Amps
  • Dimensions: 6.0" L × 3.5" W × 1.9" H
  • Weight: 1.2 lbs
  • Warranty: 2-Year Limited Manufacturer Warranty

Common Applications:

  • Heavy trucks and commercial vehicles with 24V electrical systems
  • Buses and transit vehicles powering 12V accessories
  • Marine vessels and work boats
  • Construction and earth-moving equipment
  • CB radios, AM/FM audio systems, and communication equipment
  • 12V LED lighting systems and auxiliary power

Ideal for converting 24V battery bank power to reliable 12V DC for accessories, electronics, and lighting in commercial vehicles, marine applications, and industrial equipment.

First time ordering, but not the last. Everything perfect...Thanks

Super fast website. Easy checkout for new customers. Best Price from a reputable site. Good job.

way cheaper than everywhere else. Lets hope the product is good!

Good.

Fast Shipping, Great price, Parts were well packed

Quick, easy, and fast

Excellent prices, but after a week and a half of hearing nothing I called to find out that my item, the customer service rep said it had been back ordered and I would receive an email once it shipped...my item arrived the next day and I received the shipping email four days later, no big deal just takes a while to get items, but you cannot beat the prices!

So far good.

Very easy !

Very good first experience with Autoplicity. Order arrived promptly. No issues.

I had never heard of Autoplicity prior to this purchase, so I was a little hesitant to order from them. Man I am glad that I did!! Not only did they have the lowest price (by FAR) on the product I was looking for, but it showed up to my doorstep just TWO days after placing my order!! Autoplicity is awesome and will definitely be getting future business from me!!

Wow super fast shipping and I ordered over a holiday weekend. Will be doing business with this site again soon.

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