Sunny Central 250-US / 500-US

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Sunny Central 250-US / 500-US
Central Inverters
SUNNY CENTRAL- High Tech for solar power stations
We have developed the Sunny Centrals specially for use in large PV power stations and open-field plants. Hence they possess completely special properties. String monitoring, capacity for teamwork and the ability to feed into the medium-voltage power grid make them first choice for PV systems with homogenous structure.
Sunny Central 250-US / 500-US
Perfect for commercial plants in North America
The two proven central inverters are ideally suited for commercial plants in North America. The integrated transformer makes direct connection with the low-voltage grid possible and, thanks to the outdoor enclosure and OptiCool cooling concept, the devices can be installed practically anywhere. The peak efficiency of 97.5 percent is remarkable for inverters with transformers. Monitoring and remote maintenance is performed via the integrated data logger, which is accessible through modbus, RS485, Ethernet or OPC interface.
Efficient
- 97.5 % peak efficiency
- Direct connection to the 480 V grid
- Suitable for ambient temperatures up to 122 °F/50 °C
Reliable
- Galvanic isolation
- Weatherproof enclosure
- Integrated data logger
- Simple remote query and maintenance
Strong peripherals
- NEC-2011-compliant Disconnect Unit
- Circuit Combiner Boxes for string collection
- Sunny Central String-Monitor-US
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Sunny Central 250-US |
Sunny Central 500-US |
|
| Input (DC) | ||
| Max. DC power (@ cos φ=1) | 260 kW 1) | 516 kW 1) |
| Max. input voltage | 600 V | 600 V |
| MPP voltage range | 330 V – 600 V | 330 V – 600 V |
| Rated input voltage | 380 V | 380 V |
| Minimum input voltage | 330 V | 330 V |
| Max. input current | 800 A | 1600 A |
| Number of independent MPP inputs | 1 | 1 |
| Number of DC inputs | 4; 6 | 6 – 9 |
| Output (AC) | ||
| Rated power (@ 25 °C) / nominal AC power (@ 50 °C) | 250 kVA / 173.5 kVA | 500 kVA / 351 kVA |
| Nominal AC voltage / range | 277 V / 480 V / 422 V – 528 V 2) | 277 V / 480 V / 422 V – 528 V 2) |
| AC power frequency / range | 60 Hz / 59.3 Hz ... 60.5 Hz | 60 Hz / 59.3 Hz ... 60.5 Hz |
| Rated power frequency / rated power voltage | 60 Hz / 480 V | 60 Hz / 480 V |
| Max. output current | 300 A | 600 A |
| Max. THD | 3 % | 3 % |
| Power factor at rated power / adjustable shift factor | > 0.99 | > 0.99 |
| Feed-in phases / connection phases | 3 / 3 | 3 / 3 |
| Efficiency 3) | ||
| Max. efficiency / European efficiency / CEC | 97.5 % / 96.6 % / 97.0 % | 97.4 % / 96.9 % / 97.0 % |
| Protection | ||
| Input side disconnection device | Motor-driven contactor | Motor-driven contactor |
| Output side disconnection device | Motor-driven contactor | Motor-driven contactor |
| DC overvoltage protection / AC overvoltage protection | — / — | — / — |
| Grid monitoring | yes | yes |
| Ground fault monitoring | yes | yes |
| Galvanic isolation | yes | yes |
| General Data | ||
| Dimensions (W / H / D) |
2786 / 2027 / 830 mm (110 / 80 / 33 inch) |
3536 / 2027 / 930 mm (140 / 80 / 37 inch) |
| Weight | 1900 kg | 3250 kg |
| Operating temperature range | -25 °C ... +50 °C / -13 °F ... +122 °F 4) | 25 °C ... +50 °C / -13 °F ... +122 °F 4) |
| Noise emission | 51.6 db(A) 5) | 53.9 db(A) 5) |
| Max. self-consumption (in operation) / self-consumption (at night) | 800 W / < 70 W | 1500 W / < 80 W |
| Cooling concept | OptiCool | OptiCool |
| Degree of protection | NEMA 3R | NEMA 3R |
| Application | Unprotected outdoors | Unprotected outdoors |
| Maximum permissible value for relative humidity (non-condensing) | 15 % ... 95 % | 15 % ... 95 % |
| Maximum operating altitude above MSL | 4000 m 6) | 4000 m 6) |
| Fresh air consumption | 4000 m³/h | 6000 m³/h |
| Features | ||
| Display | LC text display | LC text display |
| Communication interfaces | Ethernet, modbus, TCP, analog | Ethernet, modbus, TCP, analog |
| Internal power supply transformer | yes | yes |
| PV plant monitoring | Optional (via Sunny Portal) | Optional (via Sunny Portal) |
| Color of enclosure / door / base / roof | RAL 7032 / 7032 / 7045 / 7045 | RAL 7032 / 7032 / 7045 / 7045 |
| Certificates and approvals (more upon request) | EMC conformity per FCC, Part 15, Class A, UL 1741, UL 1998, IEEE 1547 | EMC conformity per FCC, Part 15, Class A, UL 1741, UL 1998, IEEE 1547 |
| Type designation | SC 250U | SC 500U |
|
1) Specifications apply to irradiation values below STC 2) AC voltage range for full active power: 480 V – 514 V 3) Measured without internal power supply at VDC = 330 V 4) Max. temperature at nominal conditions +45 °C/+113 °F 5) Sound pressure level at a distance of 10 m 6) No reduction in power up until 1000 m, afterwards 5% per 1000 m |
Additional Information
- manufacturer: SMA Solar Technology / Germany /














