Fronius USA LLC
Click here to choose country or language
About us Products Focus on photovoltaics Info & Support Keeping up-to-date Contact us
Home/Solar Energy/Products/Grid-Connected PV Inverters/Fronius CL/Fronius CL 55.5 Delta / 60.0 WYE277 

Fronius CL 55.5 Delta / 60.0 WYE277

Zoom
rewind
close
close
The major advantages of the Fronius CL:

  • Unique system design with the Fronius MIX technology
  • High-yield power electronics
  • Intelligent cooling
  • Simple planning and easy installation
  • Comprehensive system monitoring
  • Available in 55.5 kW Delta 208/240V or 60.0 kW WYE277 configurations
 

Technical Data


Fronius CL 55.5 Delta Fronius CL 60.0 WYE277
INPUT DATA
Recommended PV-Power 47.2 - 65.0 kWp 51.0 - 70.2 kWp
MPPT-Voltage Range 230 ... 500 V 230 ... 500 V
Max. Input Voltage (at 1000 W/m²
14°F in open circuit operation)
600 V 600 V
Nominal Input Voltage 390V 390V
Nominal Input Current 151.4A 163.7 A
Max. usable Input Current 256.7 A 277.5 A
DC Startup Voltage 245 V 245 V
Admissible Conductor Size (DC) 350 MCM 350 MCM
No. of DC Input Terminals 2x M12 (1/2") lug per hole 2x M12 (1/2") lug per hole
No. of MPP Trackers 1 1
OUTPUT DATA
Nominal output power (PAC nom) 55500 W 60000 W
Max. continuous output power (40°C) 208 V 55500 W n/a
Max. continuous output power (40°C) 240 V 55500 W n/a
Max. continuous output power (40°C) 277 V n/a 60000 W
Nominal AC output voltage 208/240 V 277 V
Operating AC voltage range default 208 V 183-229V n/a
240 V 211-264V n/a
277 V n/a 244-305V
Nominal output current 208 V 154.0A n/a
240 V 133.5A n/a
277 V n/a 72.2
Number of phases 3 3
Admissible conductor size (AC) 350 MCM 350 MCM
No. of AC Terminals 2X M10 (7/16") lug per hole 2X M10 (7/16") lug per hole
Max. continuous utility backfeed current 0 A 0 A
Nominal output frequency 60 Hz 60 Hz
Operating frequency range 59.3 - 60.5 Hz 59.3 - 60.5 Hz
Total harmonic distortion < 3 % < 3 %
Power Factor 1 1
GENERAL DATA
Max. Efficiency 95.9 % 95.9 %
CEC Efficiency 208 V 94.5 % n/a
240 V 95.0% n/a
277 V n/a 95.5 %
Consumption in standby (night) < 15 W < 15 W
Consumption during operation 110 W 110 W
Cooling Controlled forced ventilation, variable speed fan Controlled forced ventilation, variable speed fan
Enclosure Type Type 3R, Powder Coated Aluminum Enclosure (standard) Type 3R, Powder Coated Aluminum Enclosure (standard)
Unit Dimensions (w/socket) (W x H x D) 43.5 x 76.6 x 31.4 inch 43.5 x 76.6 x 31.4 inch
Inverter Weight (w/socket) 783 lbs 783 lbs
Admissible Ambient Temperature -13... 122°F -13 ... 122°F
 Rel. Humidity  0 ... 95 % (non condensing)  0 ... 95 % (non condensing)
 AC- & DC-Disconnects  integrated  integrated
Compliance UL 1741-2005, IEEE 1547-2003, IEEE 1547.1,
ANSI/IEEE C62.41, FCC Part 15 B, NEC Article 690, C22. 2 No. 107.1-01 (September 2001), California Solar Initiative - Program Handbook - Appendix C: Inverter Integral 5 % Meter Performance Specification
UL 1741-2005, IEEE 1547-2003, IEEE 1547.1,
ANSI/IEEE C62.41, FCC Part 15 B, NEC Article 690, C22. 2 No. 107.1-01 (September 2001), California Solar Initiative - Program Handbook - Appendix C: Inverter Integral 5 % Meter Performance Specification
 PROTECTION
DEVICES
   
Ground fault protection internal GFDI (Ground Fault Detector/Interruptor); in accordance with UL 1741-2005 and NEC Art. 690 internal GFDI (Ground Fault Detector/Interruptor); in accordance with UL 1741-2005 and NEC Art. 690
 DC reverse polarity protection internal diode internal diode
Islanding protection internal; in accordance with UL 1741-2005, IEEE 1547-2003 and NEC internal; in accordance with UL 1741-2005, IEEE 1547-2003 and NEC
Over temperature  output power derating/active cooling output power derating/active cooling

Equipment features


Simple planning, easy installation.
The Fronius CL was designed with practicality in mind. It can be used for many different assignments due to its planning flexibility. It is also easy to set up due to numerous design details that make installation and connection as simple as possible.

Wide input voltage range.
Different module configurations are possible: The wide input voltage range ensures high flexibility for system configuration.

Integrated grounding option.
The Fronius CL is well-equipped should modules have to be grounded whether positive or negative. Simply remove the interior grounding holder and insert the fuse.

Optional exhaust air guide.
If the Fronius CL is set up in a closed area, the exhaust air can be channeled out of the space using a connected pipe to prevent extreme heating of the ambient air. An integrated relay contact can also be used to control an external fan that draws the air to the outside.

Low installation height.
The Fronius CL can also fit into shallow spaces due to its low 183 cm height (with base). This compact design is achieved by its three-row arrangement of power modules in the inverter.

Low installation weight.
The power racks can simply be removed for installation. This reduces the weight of the Fronius CL and makes the housing easier to move. The racks can then be re-inserted and the inverter can begin operation immediately.

Generous connection area.
Sufficient space is available for connections and cabling with large cable cross sections. This makes installation simpler and much easier.


Comprehensive system monitoring.
Professional monitoring is absolutely required for PV systems of this size. That's why the Fronius CL is 100% compatible with the Fronius DATCOM system for comprehensive system monitoring. The Fronius Com Card as well as the Fronius Signal Card and Interface Card functions are standard device features.

Fronius String Control 250/25.
The customized solution for string monitoring of Fronius CL Central inverters

Technology


FRONIUS MIX TECHNOLOGY

/ The clever combination of multiple power stages means Fronius inverters always achieve maximum yield, even with partial-loads. This is due to the unique Fronius Master Inverter X-Change system (MIX), a development of the classic master/slave principle. How it works: All power stages are equal. The “master” is allocated alternately, depending on the operating hours. The result is that loads are applied evenly to individual power stages decreasing operating time on any one power stage.
/ Maximum efficiency under partial load
With MIX technology, get the maximum power harvest out of partial load ranges, e.g. on cloudy days, through a clever combination of multiple power stages in each inverter. The power stages in Fronius inverters divide up the work depending on operating hours and only operate as many power stages as required to efficiently process available power from the PV array.
/ Unrivalled stability
The redundant design means that even if one power stage fails the inverter continues to operate, ensuring yields are achieved. In the unlikely event a power stage fails the others will continue to operate.
/ Longer service life
Depending on the operation hours of each power stage, our inverters decide which power stages run under partial load conditions. This ensures that the work load is distributed equally between the power stages. The result is reduced operating time of individual power stages which increases the lifespan of the inverter.

AUTOMATIC HF TRANSFORMER SWITCHING

/ Fronius transformer inverters use a high-frequency (HF) transformer. The automatic transformer switching function produces three efficiency peaks. The result: A constant level of efficiency across the entire input voltage range, resulting in higher yields. Other key advantages of HF transformer technology are a compact, lightweight design, and safety as a result of the galvanic isolation.

FRONIUS MODULE MANAGER

/ The Fronius Module Manager always locates the maximum power point (MPP), even in the case of more demanding thin-film modules. The Fronius Module Manager achieves an outstanding MPP adaptation efficiency of >99.9 % in total.

UNIQUE PC BOARD REPLACEMENT PROGRAM

/ The foundation of our unique on-site PC board replacement program is laid as we develop our inverters, as PC boards can only be replaced if the device has been designed accordingly.  This enables our Authorized Service Provider to offer the fastest inverter servicing on the market.


  • Bookmark and Share
  • Back to top
  • Print