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Hump Power Module

posted Jan 13, 2016, 2:09 PM by Charles Boling   [ updated Mar 21, 2016, 1:53 PM ]
Front View of power module, showing the Powerpole output bank
As I've slooowly been preparing my "new" 2006 CVPI to become "my" car and replace the '98 that I've driven for so long, in addition to adding antenna mounts and running power, I created a 7-1/4" sloping hump-mount console to hold radios.  (One of these days, I'll include a picture of it).  To go with it, I created a drop-in "power module".  It has a 2' input lead with a Powerpole connector pair.  For output, in addition to 7 powerpole connections for radios and other equipment, it also features two "cigar lighter" power sockets and four USB sockets.

Back view of power module, showing the ITS-12
Power is monitored by a ITS-12 module (rated for 35A continuous use), which senses when the voltage drops from Alternator level (roughly 13VDC or higher) to battery level; I set it to automatically shut everything off after 7 hours in this state, or if the voltage drops below 11.4V (so there's still a little juice to start the car).  A master power switch disconnects the entire system (including the monitor), and a red illuminating override switch allows me to trigger an extra 15 minutes of emergency power or even keep the system powered on indefinitely, whether the monitor thinks it's a good idea or not.
A digital meter displays voltage and current use.

Though designed specifically for the hump rack, the power module is self-contained and easily transferred to another housing or used loose in the field. Such a module could be handy for deployment to a temporary incident command center.



Here is the schematic:
electrical schematic

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