Alfatronix DDi Series 24-24v Isolated DC-DC Converter - 72W (3A)
SKU: 81251172499

Alfatronix DDi Series 24-24v Isolated DC-DC Converter - 72W (3A)

$100.80 $112.00
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Description

Alfatronix DDi Series 24-24v Isolated DC-DC Converter - 72W (3A)Power: 72W (3A) isolated Voltage Input: 24VDC Output Voltage: 24VDC Dimensions: 127 x 87 x 50mm Weight: 440g The sensitivities of modern electronic equipment to variable input voltages susceptibility to EMC interference and in some cases the need to isolate the supply has made voltage stabilisation an important section of our product range. Start Stop technology on motor vehicles has added to this problem. The DDi Series offers a wide range of 12V 12V

  • Power: 72W (3A) isolated
  • Voltage Input: 24VDC
  • Output Voltage: 24VDC
  • Dimensions: 127 x 87 x 50mm
  • Weight: 440g

The sensitivities of modern electronic equipment to variable input voltages susceptibility to EMC interference and in some cases the need to isolate the supply has made voltage stabilisation an important section of our product range. Start/Stop technology on motor vehicles has added to this problem. The DDi Series offers a wide range of 12V-12V and 24V-24V isolated products that ensure a stable and reliable voltage can be delivered to important equipment even when the electrical system is under duress such as during engine cranking. Units are available from 36-240W. The range now also offers 48V-12V units suitable for the telecoms and forklift truck markets. For 12V-24V converters see DD Series 'Up' Voltage Converters

A Comprehensive Product Range

There are three products in the 12V-12V isolator range from 36W to 108W and a further four products in the 24V-24V range from 72W to 240W. There are also three 48V-12V products from 36W to 108W. All products use modern switchmode designs and are built using the same concepts and technologies as the successful PowerVerter range which will of course meet your 24V -;12V requirements.

Fast Installation

All the units consume an off load current of less than 15mA which is probably less than the self discharge current of the vehicle's battery. All the products fit onto a Click n' fit mounting clip which is fixed in three points allowing it to be mounted onto uneven surfaces. It is easy to fit the clip into awkward places then simply click the unit into position. The green LED indicates when there is output from the converter. This gives reassurance to the installation engineer and speeds fault finding.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81251172499

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4.4 ★★★★★
Based on 798 reviews
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Product Reviews
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Verified Purchase
phil
Charlottesville, US
★★★★★ 5
Great unit
Set name: 5.1 Receiver
Works great, was worried about having my hdmi run through it thinking id have to use it all the time but leaving it off the signal still goiles through to the TV. Very rleasy to hook up and very easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
R
Verified Purchase
Ron R
Bozeman, US
★★★★★ 5
Outstand Product!! 😉
Color: 14AWG-1 Lead
This is my second (at least) Nilight wiring harness. I wanted to re-do the lights on my Rhino 660. This makes it SO EASY! 👍🏼😉 And a hell-of-a-deal!! All I had to get was a "reamer" drill bit to enlarge the switch holes on my dash. Run the wire, attach the ends to the light, switch & power source, all done. I did add "shrink tubing" to my connections to add an extra layer of insulation/weatherproofing. 👍🏼
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2025
D
Verified Purchase
Daniel T.
San Leandro, US
★★★★★ 5
Definitely a good buy very professional craftsmanship
Color: 14AWG-1 Lead
As a retired master technician for Honda and all makes and models of automobiles this harness is a cut above the others is put together immaculately and anyone that can put a wire through the firewall I purchased my light bar to harbor freight 22 in great lighting but their harness kit was 56 bucks I paid under 24 this and it looked identical except the switch on this is actually much more appealing cosmetically and works well functionally just had to drill a hole in one of the blanks 4 switches in my truck made it fit perfect and has worked flawlessly since I put it in a couple weeks agodefinitely do your homework sometimes I find great deals at harbor freight that nobody can touch on Amazon but then other times vice versa Amazon has a great product at a great price compared to harbor freight in other retailers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2020
F
Verified Purchase
FrugalDad
Alexandria, US
★★★★★ 5
Perfect for roof LED light bar
Color: 14AWG-1 Lead
This worked great for wiring a 50" LED light bar to the roof of my SUV. This kit conveniently includes a relay, switch with backlight, and fuses. I used a step bit to drill the pilot hole for the switch and worked my way up until it was the right size. I zip tied the excess wire and it made for a clean install. My only complaint is that the ring terminals were too large for the battery but it was easy to crimp smaller ones on.
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Reviewed in the United States on June 13, 2022
T
Verified Purchase
Trevor C.
Grantham, US
★★★★★ 4
Good harness
Color: 14AWG-1 Lead, Color: 14AWG-1 Lead
I bought this for the nilight 12in bar. It came in the same box and right on time. It easily connected to the light bar and into the engine. There is a lot of slack between the battery terminals and the bar, but it’s understandable if maybe you wanted to mount this on the back of your vehicle. I wish there was more slack between the relay and the switch, as having to go from the battery through the firewall and into the cabin requires sufficient length. I ended up getting rid of the circular switch that came with it and it’s complimentary connectors to replace it with my own rectangular rocket switch that fit better in the cabin. Overall good product. I’d advise to wrap electrical tape around the quick disconnect to prevent any weather wear.
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Reviewed in the United States on August 19, 2020

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