Description
The transformerless, three-phase Fronius Symo Advanced 20.0-3 string inverter handles up to 26,000 Watt DC input and delivers 20,000 Watt AC output for commercial solar installations with a 480V, 3-phase grid connection. The high system voltage and wide input range ensure maximum flexibility in system design. The new Advanced versions combine the benefits of the Fronius Symo with additional value for states with Module Level Shutdown requirements including integrated PLC transmitter for SunSpec Rapid Shutdown communication standard, compliance with NEC pre-2014, 2014 and 2017, zero tilt mounting, light weight and field serviceability.
With low roof loading, NEMA 4X and 1000 V DC rating, the Fronius Symo Advanced can be mounted in many different ways, including on a roof or on a pole. The modern compact design is equipped with the SnapINverter mounting system, allowing for lightweight, secure and convenient installation. Several features are included with the Fronius Symo including Wi-Fi and SunSpec Modbus interfaces for seamless monitoring and data-logging, Arc Fault Circuit Interruption (AFCI), NEC 2017 compliant, and Fronius online and mobile monitoring platform Fronius Solar.web. Certified to UL 1741-SA (Rule 21) and FCC. Order online or PHONE 888-498-3331
Product Highlights
- Three-Phase inverter for commercial solar installation
- Sunspec Rapid Shutdown certified
- Dual-channel MPPT for real time power tracking
- Free WiFi data monitoring options to view inverter performance
- Wide MPPT input voltage range enables high flexibility in solar array string design
- 97.5% CEC efficiency for improved energy harvesting
- Extra quiet high frequency transformer-less inverter architecture
- NEMA 4X enclosure and light weight design enable inverter mounting flexibility
- Integrated DC disconnect safety switch and wiring box saves installation time and cost
- Meets latest Arc-fault protection standards, NEC 2014 Compliant
- Standard 10-year warranty, available extended warranty up to 20 years
- Qualifies for Federal Renewable Energy Tax Credit and State and Utility Solar Rebates!
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Parts / Specifications
Manufacturer: |
Fronius |
Solar Inverter Model: |
Fronius Symo Advanced 20.0-3 480 |
DC Power Input: |
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MAXIMUM STC RATED PV POWER: |
26,000 watts DC |
MINIMUM STC RATED PV POWER: |
16,000 watts DC |
MAX. USABLE INPUT CURRENT (MPPT1/MPPT 2): |
33.0 Amps / 25.0 Amps |
MAX. USABLE INPUT CURRENT TOTAL (MPPT 1 + MPPT 2): |
51 Amps |
MAX. ARRAY SHORT CIRCUIT CURRENT (MPPT 1/MPPT 2): |
49.5 Amps / 37.5 Amps |
Nominal input voltage: |
710 V |
DC startup voltage: |
200 V DC |
MPP-voltage range: |
450-800 V |
Max. input voltage: |
1000 V DC |
Admissible conductor size DC: |
AWG 14 - AWG 6 copper direct, AWG 6 aluminum direct, AWG 4 - AWG 2 copper or aluminum with input combiner |
Integrated DC string fuse holders: |
6- and 6+ |
Max (Isc) input terminal rating: |
15A |
Number of MPPT: |
2 |
AC Power Output: |
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Max. output power: |
19995 VA |
Output configuration: |
480 V Delta +N |
Frequency range (adjustable): |
45-65 Hz |
Admissible conductor size (AC): |
AWG 14-AWG 6 |
Total harmonic distortion: |
<1.0 % |
Power factor range: |
Adjustable 0.85 leading to 0.85 lagging |
Max. continuous output current: |
24.0 A |
OCPD/AC breaker size: |
30 A |
Max. Efficiency: |
98.0% |
CEC Efficiency: |
97.5% |
General Data: |
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Dimensions (width x height x depth): |
20.1 x 28.5 x 8.9 inches |
Protection Class: |
NEMA 4X |
Night time consumption: |
< 1 W |
Inverter topology: |
Transformerless |
Cooling: |
Variable speed fan |
Installation: |
Indoor and outdoor installation, tilt from 0 - 90 degree |
Note: |
Fronius Shade Cover required for installation angles less than 15 degrees |
Permitted humidity: |
0 - 100 % (non-condensing) |
Elevation: |
2000 m (6562 ft) with a max. input voltage of 1000 V / 3400 m (11155 ft) with a max. input voltage of 850 V |
DC connection terminals: |
6x DC+ and 6x DC- screw terminals for copper (solid / stranded / fine stranded) or aluminum (solid / stranded) |
AC connection terminals: |
Screw terminals 14-6 AWG |
Certificates and compliance with standards: |
UL 1741-2010 Second Edition (incl. UL1741 Supplement SA 2016-09 for California Rule 21 and Hawaiian Electric Code Rule 14H), UL1998 (for functions: AFCI, RCMU and isolation monitoring), IEEE 1547-2003, IEEE 1547a-2014, IEEE 1547.1-2003, ANSI/IEEE C62 |
Weight: |
95.7 lbs |
Protective Devices: |
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DC reverse polarity protection: |
Yes |
Anti islanding: |
internal; in accordance with UL 1741-2010, IEEE 1547-2003 and NEC |
Over temperature protection: |
Output power derating/Active cooling |
AFCI: |
Yes |
Rapid shutdown compliant: |
Yes |
Ground Fault Protection with Isolation Monitor Interrupter: |
Yes |
DC disconnect: |
Yes |
Interfaces: |
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USB (A socket): |
Datalogging and inverter update possible via USB |
2x RS422 (RJ45 socket): |
Fronius Solar Net, interface protocol |
Power Line Communication (PLC): |
Yes – SunSpec Rapid Shutdown communication standard |
Compatible Module Level Electronic: |
Tigo TS4-F based on SunSpec PLC (pending testing) |
Wi-Fi/Ethernet/Serial/ Datalogger and webserver: |
Wireless standard 802.11 b/g/n / Fronius Solar.web, SunSpec Modbus TCP, JSON / SunSpec Modbus RTU |
6 inputs and 4 digital I/Os: |
Load management; signaling, multipurpose I/O |
Fronius Symo inverter datasheet
