Inverter SMA Sunny Central 4400 UP

Sunny Central U.P.
New Sunny Central: more power per cubic meter

The SMA central inverter, with an output power of up to 4600 kVA and a system voltage of 1500 VDC, improves system design efficiency and reduces the unit costs of PV and battery power plants.

A separate power supply and additional space are provided for installing client equipment. True 1500V technology and the intelligent OptiCool cooling system ensure smooth operation even in extreme ambient temperatures and a long service life of 25 years.

Effective
• Up to 4 inverters can be transported in one standard shipping container.
• Possible oversizing up to 200%.
• Full power at ambient temperatures up to 35°C.

Strong
• Intelligent OptiCool air cooling system for efficient cooling.
• Suitable for outdoor use in all climates conditions around the world.

Flexible
• One device for all applications
• Photovoltaic installation with DC battery system and AC charging as an option.

Easy to use
• Improved DC connection area.
• Client equipment connection area
• Built-in voltage support for internal and external loads.

Technical data SC 4400 UP

DC side
MPP Voltage Range VDC (at 25°C / at 50°C): 962 - 1325 V / 1050 V
Min. DC voltage VDC, min / Starting voltage VDC, Start: 934 V / 1112 V
Max. DC voltage VDC, max: 1500 V
Max. Constant current IDC, max: 4750 A
Max. short circuit current IDC, SC: 8400 A
Number of DC inputs: bus with 26 connections per terminal, 24 with double-pole fuses (32 with single-pole fuses)
Number of DC inputs with optional DC storage: 18 with 2-pole fuses (36 single-pole fuses) for photovoltaic systems and 6 double-pole fuses for batteries.
Max. number of DC cables per DC input (per polarity): 2 x 800 µmil, 2 x 400 mm²
Comprehensive zone monitoring: ○
Available PV fuse sizes (per input): 200 A, 250 A, 315 A, 350 A, 400 A, 450 A, 500 A.
Available battery fuse size (per input): 750A

AC side
Rated AC power at cos φ =1 (at 35°C/at 50°C): 4400 kVA12)/3960 kVA
Rated active AC power at cos φ =0.8 (at 35°C / at 50°C): 3520 kW12) / 3168 kW
Rated alternating current IAC, rated (at 35°C/at 50°C): 3850 A/3465 A
Max. total harmonic distortion: <3% at rated power
Rated AC voltage / AC voltage range 1) 8): 660 V / 528 V to 759 V
AC Frequency/Range: 50Hz/47-53Hz
60 Hz / from 57 Hz to 63 Hz
Min. AC terminal short circuit factor 9): > 2
Power factor at rated power/bias factor adjustable 8) 10): ● from 1 / 0.8 for overexcitation to 0.8 for underexcitation

Efficiency
Max. efficiency 2) / European efficiency 2) / CEC efficiency 3): 98.8% / 98.7% / 98.5%

Protective devices
Input side disconnect point: DC load breaker
Output side disconnect point: AC circuit breaker
DC Surge Protection: Surge Suppressor Type I and II
AC surge protection (optional): Surge arrester, classes I and II.
Lightning protection (according to IEC 62305-1): Lightning protection level III
Earth fault monitoring/remote earth fault monitoring: ○ / ○
Insulation monitoring: ○
Degree of protection: electronics/ducting/connection area (according to IEC 60529): IP54/IP34/IP34

Total information
Dimensions (W/H/D): 2815/2318/1588 mm
Weight: < 3700 kg
Self-consumption (max.4) / part load 5) / average 6)): < 8100 W / < 1800 W / < 2000 W
Self-consumption (standby): < 370 W
Internal auxiliary power supply: ○ Built-in 8.4 kVA transformer.
Operating temperature range (optional) 8): (-40 °C) -25 °C to 60 °C
Noise level 7): 65.0 dB(A)
Temperature range (standby): −40°C to 60°C.
Temperature range (storage): −40°C to 70°C.
Max. permissible relative humidity (with/without condensation) 95% to 100% (2 months/year) / 0% to 95%
Maximum operating altitude above sea level 8) 1000 m / 2000 m 11) / 3000 m 11): ● / ○ / —
Fresh air flow: 6500 m³/h

Functions
DC Connection: Terminal block on each input (no fuse)
AC Connection: With busbar system (three busbars, one for each line wire)
Communication: Ethernet, Modbus Master, Modbus Slave
Body/ceiling colour: RAL 9016/RAL 7004
Food for external loads: ○ (2.5 kVA)
Complies with standards and directives: AR-N 4110, AR-N 4120 13), Arrêté du 23.04.08, CE, IEC / EN 62109-.1, IEC/EN 62109-2, IEEE1547, UL 840 Cat. IV
EMC Standards: IEC 55011, IEC 61000-6-2, FCC Part 15 Class A.
Complies with quality standards and directives: VDI/VDE 2862 page 2, DIN EN ISO 9001.

● Standard features ○ Optional  - not available.
Type designation SC 4400 UP

1) When the mains voltage is lower than the rated AC voltage, the rated AC power is reduced in the same proportion.
2) Efficiency measured without internal power supply.
3) Efficiency measured using internal power supply.
4) Own consumption at nominal operation
5) Self-consumption at < 75% Pn at 25°C
6) Self-consumption averages from 5% to 100% Pn at 25°C.
7) Sound pressure level at a distance of 10 m.
8) Values ​​only apply to inverters. Acceptable values ​​for SMA MV solutions from SMA can be found in the corresponding technical passports.
9) Short circuit ratio < 2 requires special SMA approval.
10) Depending on DC voltage
11) Earlier temperature derating and DC open circuit voltage reduction.
12) AC power rating at 35°C can reach maximum 1050V DC.
13) except SC 4600 UP