1)Max. efficiency 97.0% 2)soft or variable frequency start option 3)Battery manage option 4)Support Grid and generator backup
1.Overview
SDB is intelligent all-in-one unit, which combined MPPT controller, inverter and battery DC-DC charger, and integration system controlled by core chip TI DSP.
The unstable DC power from PV panel through SUNFINE SDB to transform single phase pure sine wave AC power to loads, excess power charge to battery automatically; and when solar power is lacking, battery will make up the rest or serve as complete power source. SDB supports Grid or AC generator backup.
Switching time between PV/Grid/Battery for Standard configuration unit is less than 5ms. The charger mode is 3 steps: CC, CV and FC automatically.
2.Features
Max. efficiency 97.0%
MPPT max. efficiency 99.0%
Power factor 0.9999
Large screen multi-language- LCD display
Less standby power consumption
Multi-protection for maximum safety
Statistics for power production and CO2
8K*4 RUN LOG cycle index
RS485/232 compatible
Soft or variable frequency start option
Battery manage option
Various panel types matched
Various battery types matched
3.Diagram
4.Technical Parameter
| SDB series parameters | |||
| AC side | SDB-1K/3S | SDB-1K5/3S | SDB-2K/3S |
| Continuous output power at 40°C(P nom) | 1000W | 1500W | 2000W |
| AC output current | 5.45A | 8.18A | 10.91A |
| AC output voltage(nominal) | 220V AC+20%, 50/60Hz+1Hz, true sine wave<3% THD, single phase | ||
| AC output range | 176-264V AC (limited by local regulations) | ||
| Standby losses | ≤15W | ||
| User interface | interactive LCD display with button operation | ||
| Connectivity | RS232/458(option TCP/IP) | ||
| Backup switch over time | <5 ms | ||
| DC side | |||
| Max.input | 50A | 50A | 50A |
| No.of strings | 1 | ||
| No.of MPPT trackers | 1 | ||
| Solar Voltage | 20-60V DC | 30-70V DC | 40-80V DC |
| MPPT voltage | 20-60V DC | 30-70V DC | 40-80V DC |
| Solar Connections | MC4 | ||
| Max.Efficiency | 97.00% | ||
| Max.MPP Efficiency | 99.00% | ||
| Power factor | >0.99 (Rated power) | ||
| Battery | |||
| Charge voltage (V DC) | 36 | 36 | 48 |
| Battery voltage output (Vout) | 12V DC a pack | ||
| No. of battery | 3 | 3 | 4 |
| Battery types | Gel, AGM,LiFePO4 | ||
| Battery capacity | 85-200Ah recommended | ||
| Change curve | CC,CV,FC,3-stage adaptive with maintenance | ||
| Battery patrol management | for option | ||
| Battery self-checking | for option | ||
| Environmental | |||
| Operating Temperature Range(full power) | -10°C to +50°C(derating from 40°C) | ||
| Storage Temperature | -40°C to +70°C | ||
| Humidity | maximum 90%, non-condensing | ||
| Warranty | five years | ||
| General | |||
| Dimensions(WxHxD)(mm) | 550*260*380 | 550*260*380 | 550*260*380 |
| Protection Category | IP23 | ||
| Weight(kg) | 30 | 32 | 34 |
| Protection | over/under voltage,over/under frequency, AC short circuit, Ground fault monitoring, DC reverse polarity, over load | ||
| Topology | HF-CHAIN | ||
| Cooling | Nature Cooling | Fan Cooling | |
5.Monitoring remote software:
6. product details:
7. Packing:
8. Export market distribution:
9.Production Machinery:
10. Workshop and warehouses
11. Company Logo
BV approved 48VDC 2KW off grid with battery mppt controller DC/AC inverter
