DD12-24 072

## _**DD**_ **Series** _**12-24V ‘UP’**_ **Volta e Converters g** 

## **12V-24V ‘UP’ Converters for a wide range of applications** 

If you need to fit 24V equipment onto a 12V vehicle, 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. 

## _**NEW**_ 

## **400W and 600W 12-24V units** 

The latest addition to the range includes two high current (17 and 25Amps output) units. These use state of the art designs with efficiency up to 93% and practically all components mounted using computer controlled surface mount technology (SMT). The result is a robust product with low component mass. The mechanical aspects include a brand new casing profile designed for maximum heat dissipation as well as a new design of our highly successful mounting cradle that allows the unit to be fully wired before ‘clicked’ into place. This provides for a faster installation time with mechanics capable of withstanding long term vibration with no risk of screws falling out. 

## **A Wide Range Applications** 

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

**The 12V-24V units from 72-240W are available in this format and casing.** 

**The new 400W and 600W 12V-24V units shown here with the new Phoenix connector. Supply INCLUDES the mating half and further eases installation while providing a secure connection reinforced with additional pull resistance.** 

## **Also available in IP65 format** 

The DD Series 12-24V products are available in either standard IP53 format (like most Alfatronix converters) but are also available in 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 Kee increased water and dirt i exposure. 

**The 12V-24V converters have been used for a variety of applications including bus ticketing systems on mini buses and for 24V bow thrusters on leisure craft.** 

## **Product Coding** 

The product code is developed as follows taking **For 24-12V products, see** the DD 12-24 072-RU as an example: **POWERVERTER leaflet. For other DC-DC DD** DC input and output **variants, see 12-24** Denotes 12V input, 24V output **DD SERIES 072** Denotes Wattage **leaflet -RU** Denotes ruggedized IP65 version 

> [P] **P**[o] **o** w **w** e **e** r **r** C **C** o **o** n **n** v **v** e **e** r **r** s **s** i **i** o **o** n **n** _**for**_ A **A** u **u** t **t** o **o** m **m** o **o** t **t** i **i** v **v** e **e** , **,** C **C** o **o** m **m** m **m** u **u** n **n** i **i** c **c** a **a** t **t** i **i** o **o** n **n** s **s** _**and**_ M **M** a **a** r **r** i **i** n **n** e **e** A **A** p **p** p **p** l **l** i **i** c **c** a **a** t **t** i **i** o **o** n **n** s **s** 

## **Choose your DD Series 12-24V ‘UP’ Product** 

|**Part Number**|**Power**|**Nominal Voltage**|**Dimensions**|**Weight**|
|---|---|---|---|---|
|DD 12-24 072|72W (3A) Non-Isolated|12Vdc input, 24Vdc output|89 x 87 x 50mm|300g|
|DD 12-24 168|168W (7A) Non-Isolated|12Vdc input, 24Vdc output|167 x 87 x 50mm|640g|
|DD 12-24 240|240W (10A) Non-Isolated|12Vdc input, 24Vdc output|217 x 87 x 50mm|820g|
|DD 12-24 400|400W (16A) Non-Isolated|12Vdc input, 24Vdc output|233 x 125 x 74mm|1610g|
|DD 12-24 600|600W (25A) Non-Isolated|12Vdc input, 24Vdc output|283 x 125 x 74mm|1860g|
|**Other output voltage configurations are available as special orders, please ask our sales team**|||||



## **Technical Data** 

||**Technical Data**|
|---|---|
|Input voltage range<br>~~a~~<br>~~——~~|12 Vdc nominal (10.0V-15.0V)<br>~~Ge~~|
|Output voltage<br>~~——~~|27.2Vdc +/-5% at extremes of temperature, load, input tolerance, etc.|
|Continuous current rating<br>~~——~~|3A – 25A depending on model.|
|Intermittent rating<br>~~——~~<br>~~ee~~|Continuous rating +20%, taken for a maximum of 2 minutes followed by 8 minutes rest<br>~~ee~~|
|Transient voltage protection<br>~~ee~~<br>~~——~~|Meets ISO7637-2 International standard for 24Vdc commercial vehicles<br>~~ee~~|
|Electrostatic voltage protection<br>~~——~~|Meets ISO10605, ISO14892, >8kV contact, 15kV discharge|
|Output noise<br>~~——~~<br>~~——~~|<100mV pk-pk at continuous load.|
|Off load current (quiescent current)<br>~~——~~<br>~~——~~|<20mA (400W and 600W versions enable off), less than 100mA (72-240W units)|
|Power conversion efficiency<br>~~——~~|Typically: 93%|
|Operating temperature<br>~~——~~<br>~~a~~<br>~~——~~|-25ºC to +30ºC to meet this specification table<br>+30ºC to +80ºC de rate linearly to 0A|
|Storage temperature<br>~~——~~|-25ºC to +70ºC|
|Operating humidity<br>~~——~~|95% max., non-condensing|
|Casework<br>~~——~~<br>~~a~~|Anodised aluminium, glass filled polycarbonate, dust water and impact resistance to IP533.<br>Ruggedised versions also available to IP65<br>|
|Connections<br>~~EE~~|Four 6.3mm push on flat blade connectors (72-240W)<br>Five terminal connector with screw tightening with mating half supplied (400 and 600W<br>units)<br>~~EE~~|
|Output indicator<br>~~EE~~<br>~~——~~|Green LED adjacent to output terminals<br>~~EE~~|
|Mounting method<br>~~——~~|‘Click ‘n’ fit mounting clip, fitted separately using 3 hole fixing (4 hole on 400 and 600W)|
|Safe area protection: Over current<br>~~——~~<br>~~——~~|Limited by current sensing circuit|
|Over heat<br>~~——~~<br>~~——~~|Limited by temperature sensing circuit|
|Transients<br>~~——~~|Protected by filters and rugged component selection|
|Input/Output over voltage protection<br>~~——~~<br>~~ee~~|Controlled by internal circuitry<br>~~ee~~|
|Catastrophic failure<br>~~ee~~|Protected by internal input and output fuses<br>~~ee~~|
|Approvals<br>~~a ee~~|2004/108/EC The general EMC directive<br>2006/96/EC The automotive directive<br>93/68/EEC The CE marking directive<br>~~ee~~|
|Markings<br>~~ee~~|CE and e marked<br>~~ee~~|



**Alfatronix Limited** , 29 Newtown Business Park, Poole, Dorset, BH12 3LL, England Telephone: +44 (0)1202 715517. Fax: +44 (0)1202 715122 Website: http//www.alfatronix.co.uk. E mail: sales@alfatronix.co.uk Alfarronix An ISO9001:2000 Registered Company Made in the European Union by Alfatronix Ltd, Great Britain **GB** EU-EN-DD-0709 ~~or~~