Alfatronix PV12S / PV12S-A 24V to 12V Voltage Dropper (12A)

Alfatronix’s PV12S(-A) is a rugged and reliable voltage dropper that allows equipment designed for 12V operation to be used in vehicles with a 24V electrical system (e.g. trucks and buses).  The PV12S(-A) supports 12A continuous load, with an intermittent load of up to 18A (for a maximum of 2 minutes, followed by 8 minutes rest).

The PV12S(-A) is therefore ideal if you wish to supply our higher power in-vehicle computers, such as the CQ60 series, with a nominal 12V supply in a 24V vehicle.  Note that for our other in-vehicle computers we recommend the lower power PV6S(-A), and for in-vehicle routers the PV3S(-A).

The PV12S(-A) fits onto a supplied “Click ‘n’ Fit” mounting clip which is fixed in three points, allowing it to be mounted on uneven surfaces.  A green LED indicates that there is a power output from the converter.

The product is available in two variants as follows:

• PV12S: Single output
• PV12S-A: Dual-output.  This accepts two independent 24V inputs (e.g. permanent power feed and an ignition-switched feed) and converts them both to 12V outputs. The power budget is shared between the two outputs, either one of which can provide full power. The PV12S-A is particularly useful for ensuring that both the permanent and ignition-switched feeds connected to our in-vehicle PCs are a nominal 12V.