Importers & Distributors of: CTEK | Lifeline | Odyssey | Midtronics | Full Spectrum Power

Element 82

The Importers and Distributors of quality DC power equipment from leading manufacturers from around the globe. Our range of products cover everything from batteries for Reserve, Automotive, Motorsport, Aviation to Smart Chargers, Inverters, Solar Panels, Generators and much more.  For assistance please give us a call on 09- 476 4171


Element 82 Products, Batteries, Chargers, Testers, Inverters and more

Alfatronix DD Series DD12-24 240

Product Image

12V-24V ‘UP' Converters for a wide range of applications

If you need to fit 24V equipment onto a 12V electrical system, then an ‘up' converter from the DD Series offers a fast and easy way to configure your system.  Now with a range from 72W (3A output) to 600W (25A output), these products offer state of the art designs for fast installation and long term reliable operation. 

A Wide Range of Applications

Typical applications include the installation of 24V equipment on 12V vehicles and installation of specialist equipment requiring higher operating voltages. 

Also available in IP65 format

The DD Series 12-24V products are available in either standard IP53 format (like most Alfatronix converters) or the Ruggedised IP65 versions.  Just add -RU to the part number.  These are suitable where the installation is in a particularly hostile environment and subject to increased water and dirt exposure.

Technical Data

Input voltage range

12 Vdc nominal (10.0V-15.0V)

Output voltage

27.2Vdc +/-5% at extremes of temperature, load, input tolerance, etc.

Continuous current rating

3A - 25A depending on model.

Intermittent rating

Continuous rating +20%, taken for a maximum of 2 minutes followed by 8 minutes rest

Transient voltage protection

Meets ISO7637-2 International standard for 24Vdc commercial vehicles

Electrostatic voltage protection

Meets ISO10605, ISO14892, >8kV contact, 15kV discharge

Output noise

<100mV pk-pk at continuous load. 

Off load current (quiescent current)

<20mA (400W and 600W versions enable off), less than 100mA (72-240W units)

Power conversion efficiency

Typically:  93%

Operating temperature

-25ºC to +30ºC to meet this specification table

+30ºC to +80ºC de rate linearly to 0A

Storage temperature

-25ºC to +70ºC

Operating humidity

95% max., non-condensing


Anodised aluminium, glass filled polycarbonate, dust water and impact resistance to IP533.

Ruggedised versions also available to IP65


Four 6.3mm push on flat blade connectors (72-240W)

Five terminal connector with screw tightening with mating half supplied (400 and 600W units)

Output indicator

Green LED adjacent to output terminals

Mounting method

‘Click ‘n' fit mounting clip, fitted separately using 3 hole fixing (4 hole on 400 and 600W)

Safe area protection: 

Over current             

Limited by current sensing circuit

Over heat

Limited by temperature sensing circuit


Protected by filters and rugged component selection

Input/Output over voltage protection

Controlled by internal circuitry

Catastrophic failure

Protected by internal input and output fuses


2004/108/EC The general EMC directive

2006/96/EC The automotive directive

93/68/EEC The CE marking directive


CE and e marked

Whether you’re installing radio communications, data tracking, visual displays or navigation equipment. On a lorry, a bus, a fire engine or even a luxury yacht. For business, for leisure, and often for emergency services, you know that even the best product or the newest technology is only as good as the power supply supplying it.

At Alfatronix, we know this! A failed power supply or a failed converter is a failed system. That’s why we use only modern rigorously tested designs, automated assembly techniques and an award winning quality manufacturing system backed up by expert engineering support. With flexible working practices and short lead times, our products are delivered to you fast by reliable carriers.

And, just for your peace of mind, don’t forget, all our products are backed up by our now legendary lifetime guarantee. 
Alfatronix – Fit it, forget it!