Alfatronix Ltd, Fit and Forget - Converters and Power Supplies for the Communications, Automotive and Marine Industries

PowerVerter 24Vdc to 12Vdc Voltage Converters

  • PV3s
    PV3s
  • PV3i
    PV3i
  • PV6s
    PV6s
  • PV6i
    PV6i
  • PV12s
    PV12s
  • PV12i
    PV12i
  • PV24s
    PV24s
  • PV24i
    PV24i

These products offer a convenient way to operate mass produced 12Vdc equipment such as cell phones, in car entertainment, professional communication and telematics equipment, refrigerators, televisions etc. from the 24Vdc mobile electrical systems found on diesel engined vehicles and vessels.

A Comprehensive Range

There are 10 products in the range from 3A to 24A in isolated or common earth configurations. They have been optimised for high volume 24Vdc to 12Vdc applications such as on heavy goods vehicles, coaches, buses, construction, forestry and agricultural vehicles, commercial and leisure marine vessels.

Tamper Proof

There are no ventilation holes to permit stray objects, dust or water droplets to enter the case. There are no external fuses to be tampered with. Fuses will only blow if there is a fault so there is no need to make them accessible.

All PowerVerters are enclosed in a rugged aluminium extrusion. The low mass Surface Mount Technology components are also less prone to damage from vibration and shock, further increasing the reliability of the units.

3Amp units are excellent for charging mobile phones, while 6A units suit a variety of mobile radio applications.

Galvanically isolated units are suitable for marine applications and come complete with the green tamperproof label for petrochemical applications.

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. In most cases this can be ignored, speeding the installation by removing the need to fit a remote switch. All products fit onto a ‘Click ‘n’ Fit mounting clip which is fixed in three points allowing it to be mounted on uneven surfaces. It is easy to fit the clip into awkward places and then simply click the unit into position. A green LED indicates when there is output from the converter. This gives reassurance to the installation enginer and speeds fault finding.

Easy 6 step Installation Method

1. Find a convenient location away from sun and rain.
2. Using the mounting clip as a template, mark fixing positions.
3. Drill screw holes.
4. Fix bracket using screws provided.
5. Clip PowerVerter to mounting bracket.
6.Correctly connect to load.

Typical applications

Installations of mobile and cellular radio communications equipment, telemetry systems, refrigeration, televisions etc on trucks, buses, forestry and off road vehicles as well as boats and yachts and a variety of industrial applications. For a wider range of input and output voltages, see the DD Series.

What do you use them for? Please let us know.

All PowerVerters convert
24Vdc to 12Vdc
Isolation
Non-Isolated
Common Negative
Isolated
Input to Output
Load Current

Continuous / Intermittent
3 / 6 APV3sPV3i
6 / 10 APV6sPV6i
12 / 18 APV12sPV12i
18 / 21 APV18sPV18i
24 / 30 APV24sPV24i
50 / 60 ADD24-12 600 

Input voltage range

17-32Vdc

Output voltage

13.6Vdc +15% -20% at extremes of temperature, load, input tolerance, etc.

Intermittent output power

As stated, 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

<50mV pk-pk (100mV on 24V units) at continuous load. Meets CISPR25 and VDE0879-3

Off load current (quiescent current)

<15mA

Power conversion efficiency

Typically: 90% for non-isolated units, 85% for isolated units

Isolation

>400Vrms between input, output and case, on isolated products only

Mean time between failures

>162 years (HRD4)

Operating temperature

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

+30ºC to +80ºC de rate linearly to 0A

Storage temperature

-25ºC to +100ºC

Operating humidity

95% max., non-condensing

Casework

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

Connections

Four 6.3mm push-on flat blade connectors

Output indicator

Green LED adjacent to output terminals

Mounting method

‘Click ‘n’ fit mounting clip, fitted separately using three hole fixing

Safe area protection: Over current

Limited by current sensing circuit

Over heat

Limited by temperature sensing circuit

Transients

Protected by filters and rugged component selection

Catastrophic failure

Protected by internal input and output fuses

Approvals

2004/108/EC The general EMC directive

2006/96/EC The automotive directive

93/68/EEC The CE marking directive

Markings

CE and e marked

Alfatronix Part Number

NSN Nato Part Number

  

PV3S

6130-99-213-1361

PV6S

6130-99-799-8754

PV12S

6130-99-371-1198

PV18S

6130-99-307-5196

PV24S

6130-99-891-0687

  

PV3I

6130-99-968-5504

PV6I

6130-99-441-4595

PV12I

6130-99-771-1553

PV18I

6130-99-958-2948

PV24I

6130-99-867-8718

  

DD24-12 600

6130-99-281-4138

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