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SOLAR ENERGY
Installers & partners

Fronius Tauro

Designed to perform

The three-phase Fronius Tauro in the 50 kW power class promises maximum performance, even under the harshest conditions. With its smart hardware design, it not only contributes to BOS cost optimization, but also offers unprecedented flexibility in system design. The Fronius Tauro can be used to implement sophisticated roofs in both centralised (P variant) and decentralised system designs (D variant). Simplest installation and the fastest service on the market also guarantee maximum safety.
Fronius Tauro. Designed to perform.
Please choose your desired product.

Product details

INPUT DATA

Number of MPP trackers3
Max. input current (Idc max_inverter)
134 A
Feed-in start voltage (Udc start)
200 V
MPP voltage range (Umpp min - Umpp max)
400 - 870 V 9)
Max. PV generator power (Pdc max
75 kWpeak
Max. input current PV1 (Idc max, PV1)
36 A
Max. input current PV2 (Idc max, PV2)
36 A
Max. input current PV3 (Idc max, PV3)
72 A
Max. short-circuit current PV1 (Isc max, PV1)*
72 A
Max. short-circuit current PV2 (Isc max, PV2)*
72 A
Max. short-circuit current PV3 (Isc max, PV3)*
125 A
Max. power PV system PV1 (Pdc max,PV1)
25 kWpeak
Max. power PV system PV2 (Pdc max, PV2)
25 kWpeak
Max. power PV system PV3 (Pdc max, PV3)
50 kWpeak
Max. AC fuse size rating355 A
Max. short-circuit current inverter (Isc max, inverter)
240 A
Max. short-circuit current string (Isc max, string)
20 A
Max. input current string (Idc max, String)
14,5 A
Number of DC connections PV1
4
Number of DC connections PV2
3
Number of DC connections PV3
7
Max. short-circuit current string (Isc max, string- 30 A Option
30 A
Max. input current string (Idc max, String) - 30 A Option
22 A
Number of DC connections PV1 - 30 A Option
4
Number of DC connections PV2 - 30 A Option
5
Number of DC connections PV3 - 30 A Option
5

OUTPUT DATA

AC nominal output (Pac,r)
50 kW
Max. output power (Pac max)
50 kVA
AC output current (Iac nom)
75,8A at 220Vac , 72,5A at 230Vac
Grid connection (Uac,r)
3~ NPE 380/220 , 3~ NPE 400/230 V
AC voltage range (Umin - Umax)
180 - 270 V
Frequency (fr)
50/60 Hz
Frequency range (fmin - fmax)
45 - 65 Hz
Total harmonic distortion<3% @Pnom (230/400VAC 50Hz)
Power factor (cos φac,r)
1 ind,/cap,
Max. DC fuse size rating20 A

GENERAL DATA

Length
1109 mm
Width
755 mm
Depth
346,2 mm
Weight92 kg
Weight incl. packaging111 kg
Degree of protectionIP65
Protection class1
Overvoltage category (DC / AC) 1)
2 / 3
Night-time consumption15 W
InstallationIndoor and outdoor 4)
Ambient temperature range'-40°C - +65°C (optional AC-disconnect: from - 30 to + 65 °C) 
Permitted humidity0-100 %
Max. altitude 2)
4000 m
Certificates and compliance with standardsVDE-AR-N 4105, VDE-AR-N 4110, IEC 62109-1/-2, IEC 62116, IEC 61727 R25, AS/NZS 4777, CEI 0-16, CEI 0-21, EN 50549-1/-2, VDE 0126-1-1 8)
Inverter topologyTransformerless
CoolingActive Cooling Technologie and Double-Wall System
Sound emissions68,4 dB(A)
Interference emission classB

EFFICIENCY

Max. efficiency (PV - grid)98,5 %
European efficiency (ηEU)97,8 / 98,3 / 97,9 / 97,7 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 5% Pac,r 3)
94,90 / 96,52 / 92,87 / 91,80 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 10% Pac,r 3)
97,33 / 97,91 / 96,54 / 95,68 ((400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 20% Pac,r 3)
98,04 / 98,45 / 97,90 / 97,63 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 25% Pac,r 3)
97,86 / 98,44 / 98,07 / 97,88 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 30% Pac,r 3)
97,92 / 98,51 / 98,14 / 98,05 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 50% Pac,r 3)
97,99 / 98,48 / 98,24 / 98,17 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 75% Pac,r 3)
97,86 / 98,35 / 98,17 / 98,10 (400Vdc / 600Vdc / 800Vdc / 870Vdc)
η at 100% Pac,r 3)
97,63 / 98,16 / 98,04 / 97,99 (400Vdc / 600Vdc / 800Vdc / 870Vdc)

PROTECTION DEVICES

DC insulation measurementIncluded
Overload behaviourOperating point shift. Power limitation 5)
DC disconnectorIncluded
Integral RCMUIncluded
Overvoltage protection devicesType 1 + 2 integrated, Type 2 optional 6)
DC string fusingintegrated, 15 A or 20 A

INTERFACES

6x digital in/out + 6x digital inProgrammable interface for ripple control receiver, energy management, load control (Inputs: Voltage level low: min. 0V - max. 1.8V; high: min. 4,5V - max. 28,8V / Input resistance: 70kOhm
Outputs: 5 Watt @ 12V in total for all six digital outputs when supplied internally in case of no load on the USB Port.
1A @ >12,5V to 24V per digital output when supplied externally by an external power supply but in total max. 3A)
Emergency stop (WSD)Yes
Datalogger and web serverIncluded 7)
WLANFronius Solar.web, Modus TCP Sunspec, Fronius Solar API (JSON)
2x RS485Modbus RTU Sunspec
Ethernet LAN RJ4510/100Mbit; max. 100m Fronius Solar.web, Modbus TCP Sunspec, Fronius Solar API (JSON) 7)

AC CONNECTION TECHNOLOGY

Cable cross section35 - 240 mm²
Conductor materialAl; Cu
Connection terminalsCable lug or V clamps
Single core option (single core cable)Cable gland: 5 x M40 (10 - 28 mm)
Multi core option (multi core cable)Cable gland: 1 x multi core connection Ø 16 - 61.4 mm + 1 x M32 (10 - 25 mm)
AC Daisy Chaining option (single core cable)Cable gland: 10 x M32 (10 - 25 mm)

DC CONNECTION TECHNOLOGY

Cable cross section4 - 6 mm²
Conductor materialCu
Connection terminalsDC direct connection, Stäubli Multi Contact MC4
More information about the features & availability of this product
Clear HTML version of the operating instructions. Mobile and optimised  for every device.

Downloads

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FOOTNOTES FOR TECHNICAL DATA

1) According to IEC 62109-1  

2) Unrestricted voltage range

3) At 580Vdc / 800Vdc / 930Vdc

4) Direct in the sun is possible

5) At an ambient temperature of 50°C

6) AC-, DC -Overvaltage protection; Typ 1+2: Iimp 5kA

7) An Ethernet star-configuration is used for communication with multiple inverters. Each individual inverter communicates independently with the network/Internet via its integrated data logger

8) Find more certifications at www.fronius.com/tauro-cert 

9) At 230 V actual mains voltage

 

* Isc pv = Isc max ≥ Isc (STC) x 1,25 according to e.g..: IEC 60364-7-712, NEC 2020, AS/NZS 5033:2021.

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