SCCM20-
100 Owner’s Manual
4
Specifications
Section
Name
12 Vdc
24 Vdc
PV
Controller Type
MPPT
Wattage (maximum)
300 W
600 W
V
oc
(range)
NOTE
: Will not operate above
85 Vdc
25 to 100 Vdc
40 to 100 Vdc
V
mp
(range)
15 to 70 Vdc
27 to 70 Vdc
Short Circuit Current (maximum)
20 Adc
Battery
Battery Type ( jumper-selectable)
Flooded or VRLA
Nominal Voltage
12 or 24 Vdc; automatically detected
Battery Input (range)
9 to 16 Vdc
18 to 32 Vdc
Standby Loss
<3 mAdc
Efficiency (maximum)
97%
Charger
Bulk and Absorption
Voltages (maximum)
for Battery Types
Flooded
VRLA
Flooded
VRLA
Bulk 14.8 Vdc*
14.6 Vdc*
29.6 Vdc*
29.2 Vdc*
Absorb 14.8 Vdc*
14.4 Vdc*
29.6 Vdc*
28.8 Vdc*
Absorb Time
2 hours*
Float Voltage
13.2 Vdc*
13.5 Vdc*
26.4 Vdc*
27.0 Vdc*
Charging Current (maximum)
20 Adc* (derated to 18 Adc at 60°C)
Temperature Compensation (range)
-5 mV / °C / battery cell*
Thermistor
10K NTC
Equalize
NOTE: Enabled by removing battery jumper; loads turned off while equalizing
NOTE*: Occurs every 60 days,
or following a low battery load disconnect
Equalization Voltage (maximum)
15.5 Vdc*
--
31.0 Vdc*
--
Equalization Time
1 hour*
*Number shown is factory default setting. Consult the battery manufacturer for specific charger
settings. Item is settable with communications interface.
Troubleshooting
Problem
Possible Remedies (perform in order shown)
Battery not charging
1) Check battery connections
2) Check PV voltage and connections
3) Allow charger to cool
No LED indicators with PV power available
1) Check battery voltage
at controller terminals
2) Check panel voltage
at controller terminals
Red LED on
1) Disconnect PV
2) Disconnect battery
3) Disconnect load
4) Reconnect battery
5) Reconnect PV
6) Reconnect load
Red LED flashing
1) Disconnect loads
2) Charge battery
Yellow LED not on
Charge battery
Charging to wrong voltage
1) Check position of battery selection jumper
2) Check installation of thermistor
Section
Name
12 Vdc
24 Vdc
Loads
Minimum Load Size
0.25 Adc
Maximum Output Current
20 Adc
Internal
Protections
Internal Protection
Battery Reversal, PV Reversal
Load Disconnect (Automatic Reset)
Low Battery, High Battery, Overload
Load Disconnect (Manual Reset)
Overload (after 3 automatic resets)
Low Battery Load Disconnect
11.4 Vdc*
22.8 Vdc*
Low Battery Load Reconnect
12.4 Vdc*
24.8 Vdc*
High Battery Load Disconnect
15.0 Vdc
30.0 Vdc
Dimensions
Size
197 mm (7.8”) x 110 mm (4.3”) x 57 mm (2.2”)
Weight
~ 1 kg
Cabling
Terminal Size (PV and battery)
≤ 32 mm
2
(#4 AWG)
Cable Size (minimum)
Battery
16 mm
2
(#6 AWG)
PV
6 mm
2
(#10 AWG)
NOTE: Larger cables must be used if battery cables exceed 3 m length
NOTE: Battery cables must be twisted together during installation
Battery Sense Required Size
0.33 to 0.08 mm
2
(#22 to 28 AWG)
Terminal Torque Value
5.0 Nm (50 in-lb)
Grounding
Not required
External Protection (recommended)
Follow all local codes to select overcurrent
protection.
Battery
≤ 40 Adc, ≥ 100 Vdc
PV
≤ 20 Adc, ≥ 100 Vdc
Environment
Operating Temperature
-40°C to 60°C (derated to 18A output from 50
to 60°C)
Humidity
0 to 95% RH non-condensing
Ingress Protection
IP20
Battery Bank
Minimum 100 Ah at C/5 discharge rate
Certifications
CE, EN 61000-6-1, EN 61000-6-3, IEC/EN 62109-1
Warranty
2 years
