OutBack MPPT Charge Controller [RE-wrenches]

[Christopher Freitas - OutBack Power]

Allan Sindelar wrote:

> Will the unit be programmable to serve 32VDC systems as well? 

Yes - it can be used for any battery voltage from 12 to 60 vdc 
(nominal)in fact. Max battery bulk, float and EQ setpoint voltage is 80 
vdc.  Max open circuit is 125 vdc (really due to the breakers we use and 
to provide plenty of safety margin).
   
Here are some other answers for questions you might have: 

The design is a buck only type so the PV's MPPT voltage needs to be 
higher than the battery to get any boost out of it.  It can be used to 
step down a 48 or 60 vdc nominal PV array to a 12/24/32/36 vdc 
battery/inverter.  We can also MPPT after we have switched into float 
mode, without having to retrigger a bulk cycle (unlike other MPPT 
designs).  The temp comp sensor is a plug-in option.  

The DC output current is electronically limited to 60 amps for all 
voltages and we are completing the certification testing using 60 amp 
continuous rated hydraulic magnetic breakers. The physical dimensions 
and knockout locations make it an easy upgrade from a C40 controller.  
We also allow the battery/PV negatives to be common (single wire - like 
the C40) so no rewiring is required when upgrading an existing system.   


Christopher Freitas
OutBack Power Systems, Inc.
cfreitas at outbackpower.com  www.outbackpower.com
Tel 360 435 6030  Arlington WA USA

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