Specialty Concepts SC3/10) - Manual (Page 2)

S PECIFICATIONS
R E L A T E D S Y S T E M E Q U I P M E N T
The SC3/10 is an integral part of a solar electric power system that includes a PV solar array, a
battery and a load. The load is considered the item or equipment that the PV system is powering.
These items should be installed according to the instructions provided by the equipment supplier,
and this manual assumes that the rest of the equipment installation has been properly completed.
PANELS: The SC3/10 is compatible with all makes and models of PV panels, provided the open
circuit voltage (Array Voc, Max) does not exceed 26 volts and the short circuit current of
the array (Current, Short Circuit, Max) does not exceed 10 amps.
BATTERIES: The SC3/10 is calibrated for proper charging of standard batteries that are
normally used in recreational vehicles, boats, and remote stand alone systems. These
include wet cell batteries using lead antimony and/or lead calcium grids and sealed,
maintenance free batteries. For sealed batteries left unattended and charging for
prolonged periods, the SC3/10 may require different charge termination set-points. Contact
your supplier for more information.
LOADS: System loads such as lights, radios, DC/AC inverters, etc. must be rated for 12 volt DC
input. The loads should be fused as recommended and connected directly to the battery or
to a load center/circuit breaker box. See "INSTALLATION" section.
OTHER CHARGING SOURCES: DO NOT use the SC3/10 to regulate a power source other than
a photovoltaic array, such as a hydro or wind generator/alternator or an AC battery
charger. This could result in damage to the SC3/10 and/or the generating equipment.
Other charging sources must have their own charge regulation devices.
The SC3/10 and array can remain connected to a battery that is being charged by an
additional source, (alternator, battery charger, etc.) without damage to the controller or solar
panels.
PARAMETERS UNITS VALUE
Nominal Voltage (Volts) 12
Short Circuit Current, Continuous (Amps) 10
Short Circuit Current, Max (60 seconds) (Amps) 13
Array Voltage, Max Voc (Volts) 26
Operating Voltage @ Battery, Minimum (Volts) 0
Quiescent Current (Milliamps) 10
Current Consumption, Charging, Typ. (Milliamps) 15
Voltage Drop, Array to Battery, Typ. (Volts) .4
Charge Termination (Volts) 14.3 + .2
Charge Resumption (Volts) 13.5 + .3
Low Battery Warning Light (On) (Volts) 11.5 + .2
Operating Temp. Range (
°
C) -40 to 50
Storage Temp. Range (
°
C) -55 to 85