Voltronic Power SCC-MPPT 300W, SCC-MPPT 600W Quick Manual
SCC-MPPT
Solar Charge Controller
Quick Guide
SCC-MPPT 300W SCC-MPPT 600W
Table 3: Charging voltage for 4 types of battery
Battery
Type
Battery
Type
Code
12V battery system
24V battery system
Bulk
Voltage
Floating
Voltage
Bulk Voltag e
Floating
Voltage
Vented
01
14.3 V
13.2 V
28.6 V
26.4 V
Sealed
02
14.3 V
13.4 V
28.6 V
26.8 V
Gel
03
14.3 V
13.7 V
28.6 V
27.4 V
NiCd
04
14.3 V
14.0 V
28.6 V
28.0 V
Custom
05
Self-defined
Self-defined
Self-defined
Self-defined
Table 4: Alarm point for low battery voltage table
Connected battery system
Alarm point
12V
10.5 V
24V
21.0 V
Table 5: Charging hour table for reference
Battery Capacity
To 90% capacity @ 25A charging current
52 Ah
2 hours
100 Ah
4 hours
200 Ah
8 hours
300 Ah
12 hours
400 Ah
16 hours
500 Ah
20 hours
Table 6: Power consumption of home appliances table*
Appliances
Power
Consumption (W)
Daily usage hours
Daily watt hours
used (Wh)
Lighting bulb
60 6 360
Energy saving
bulb
13 6 78
Electric fan
60
12
720
TV
100 4 400
Washing
machine
800 1 800
Air conditioner
800 6 4800
Freezer
400
24
9600
PC with 17”
monitor
150 6 900
Laptop
70 6 420
*This power consumption table may be different based on different consumer
behavior and local electronic specifications.
V. 2.1
11
1. Introduction
SCC-MPPT solar charge controller uses PWM-based DSP controller to keep the
batteries regulated and prevent batteries from overcharging and discharging.
Applying intelligent MPPT algorithm, it allows SCC-MPPT solar charge controller to
extract maximum power from s olar arr ay s by finding the maximum po wer poin t of
the array.
The solar charge controller facilitates a standalone energy system. Typical
applications are listed below:
Mobile applications such as moving van, lodge, log cabin, or night market.
Lighting applications such as street lights, road lights, or garage lights.
Remote village with power shortage
1. Product Overview
Power switch
Solar energy status indicator (Blue LED)
Charging status indicato r (Green LED)
Site wiring fault indicator (Red/Orange/Yellow LED)
LCD display (see Operation Section for the details)
Terminal block for solar panel connection
Terminal block for battery connection
Terminal block for load connection
2. Installation
Inspection
Remove the unit from the shipping package and inspect it for damage that may
occur during transportation. Notify the carrier and place of purchase if any damage
is found.
Installation Note
Read all the installation section before beginning installation
CAUTION! Careful to reduce the risk or dropping a metal tool on the batteries. It could
spark or short circuit the batteries and could cause an explosion.
CAUTION! Remove personal metal items such as rings, bracelets, necklaces, and
watches when working with batteries. Batteries can produce a short circuit current high
enough to make metal melt, and could cause severe burns.
CAUTION! Avoid touchin g eyes while working n ear batteries.
CAUTION! Have plenty of fresh water and soap nearby in case battery acid contacts
skin, clothing, or eyes.
Explosive battery gasses may be present during charging . be certain there is sufficient
ventilation to release the gasses.
CAUTION! NEVER smoke or allow a spark or flame in vicinity of a battery.
Do not expose this charger controller to rain, snow or liquids of any type.
WARNING! Provide ventilation to outdoors from the battery compartment. The battery
enclosure should be designed to prevent accumulation and concentration of hydrogen
gas at the top of the compartment.
CAUTION! Use insulated tools to reduce the chance of short-circuit when installing or
working with the inverter, the batteries, or other equipments attached to this unit.
CAUTION! For battery installation and maintenance, read the battery manuf a cture r 's
installation and maintenance instructions prior to operating.
Only charge Sealed Lead Acid, Vented Lead, NiCd or Gel batteries.
CAUTION! To reduce risk of injury, only use qualified batteries from qualified
distributors or manufacturers. Any unqualified batteries may cause damage and injury.
Do NOT use old or overdue batteries. Please check the battery type and date code
before installation to avoid damage and injury.
WARNING! It's very important for safety and efficient operation to use appropriate
external battery cable. To reduce risk of injury, external cables including battery cables,
PV panel cables and load connected cables should be UL certified and rated for 75° C or
higher . And strongly suggest not to use copper cables less than 12AWG. Below is the
external battery cable reference according to system requirements.
Model
Nominal Battery Voltage
Typical Current (Amp)
SCC-MPPT 300W
12 V
25 A
SCC-MPPT 600W
12V or 24 V (auto sensing)
25 A
NOTE: It's recommended to allow experienced personnel to install solar panel
because the efficiency of solar energy transmission is directly effected by
installation angles. Please follow the voltage requirement of the unit to wire
connection with solar panel and batteries.
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