5
SOLAR CONTROLLER SPECIFICATIONS
1
Electrical Parameters
1-1-1 Rated solar panel amps – SPM80K
8
Max.
AMP
1-1-2 Rated solar panel amps – SPM120K
12
Max.
AMP
1-2 Normal input Solar cell array voltage
15–22
VDC
1-3 Max. solar cell array voltage (output has no load)
25
Max.
VDC
1-4 The controller lowest operating voltage (at solar or battery side)
8V
Min
VDC
1-5 Standby current consumption at night
5
Max
mA
1-6 Maximum voltage drop-Solar panel to battery
0.25
Max.
VDC
2
Charging characteristics
2-1 Minimum battery start charging voltage
3
Min
VDC
2-2 Soft start charging voltage
3-10
+/-0.2
VDC
2-3 Soft start charging current (50% PWM duty)
2-4 Bulk charge voltage 10-14.0 +/-0.2 VDC
2-5 Absorption charging voltage at 25
o
C
• Gel type battery
14.1
+/-0.2
VDC
• AGM type battery (default setting)
14.4
+/-0.2
VDC
• WET type battery
14.7
+/-0.2
VDC
• Calcium type battery
14.9
+/-0.2
VDC
2-6 Absorption transits to Equalizing or Float condition:
• Charging current drops to :
– SPM80K
0.5
+/-0.1
AMP
– SPM120K
0.75
+/-0.1
AMP
• or Absorption charging timer timed out
4
Hour
2-7 Equalization charging active
• Only for WET or Calcium battery
• Battery voltage discharged to less than
10
+/-0.2
VDC
• Automatic equalizing charging periodical
28
Day
2-8 Equalization charging voltage
15.5
+/-0.2
VDC
2-9 Equalization charging timer timed out
2
Hour
2-10 Float charging voltage
13.6
+/-0.2
VDC
2-11 Voltage control accuracy
+/- 1%
3 Protection
3-1 Against reverse polarity or short circuit at panel side
3-2 Against reverse polarity or short circuit at battery side
3-3 No reverse current from battery to solar at night
3-4 Over temperature protection during charging
65
o
C
3-5 Transient over voltage protection with TVS or varistor
4
Electrical parts
4-1 Input output terminal
M4 terminals
4-2 Temperature sensor port (Press and Release type)
DA 250-350 2P
5
Physical Parameters
5-1 Controller material
Plastic, Standard ABS
5-2 Power terminal maximum stranded wire size
#12 AWG stranded-3 mm
2
5-3 Mounting
Vertical wall mounting
5-4 IP grade
IP22
5-5 Net weight Approx.
250g
6
Environmental characteristics
6-1 Operating temperature
-25 ~ 50
o
C
6-2 Storage temperature
-40 ~ 85
o
C
6-3 Operating Humidity range
100% no condensation
