Fronius Tauro Inverter Series: Technical Overview
Introduction
The three-phase Fronius Tauro inverter series, available in 50 kW and 100 kW power classes, is designed for central systems to deliver maximum performance even under the harshest conditions. These inverters feature a smart hardware design that optimizes BOS costs and provides unprecedented flexibility in system design, ensuring simple installation and fast servicing for maximum yield.
Technical Specifications
Input Data
| Model |
MPP Trackers |
Max. Input Current (Idc max) |
Max. Input Current (Module Field) |
Max. Short Circuit Current (Module Field) |
Max. Short Circuit Current (Isc max) |
DC Input Voltage Range |
Feed-in Start Voltage |
Usable MPP Voltage Range |
Number of DC Connections (PV1 / PV2 / PV3) |
Max. PV Generator Power |
| Tauro 50-3-P |
3 |
134 A |
36 / 36 / 72 A |
72 / 72 / 125 |
240 |
200 - 1,000 V |
200 V |
400 - 870 V |
1 / 1 / 1 |
75 kWpeak |
| Tauro Eco 50-3-P |
1 |
87.5 A |
75 / 75 / - A |
125 / 125 / - |
178 |
580 - 1,000 V |
650 V |
580 - 930 V |
1 / 1 / - |
75 kWpeak |
| Tauro Eco 99-3-P |
1 |
175 A |
100 / 100 / - A |
125 / 125 / - |
250 |
580 - 1,000 V |
650 V |
580 - 930 V |
1 / 1 / - |
150 kWpeak |
| Tauro Eco 100-3-P |
1 |
175 A |
100 / 100 / - A |
125 / 125 / - |
250 |
580 - 1,000 V |
650 V |
580 - 930 V |
1 / 1 / - |
150 kWpeak |
Output Data
| Model |
AC Nominal Output (Pac,r) |
Max. Output Power |
AC Output Current (Iac nom) |
Grid Connection |
Frequency Range |
Power Factor (cos φac,r) |
| Tauro 50-3-P |
50,000 W |
50,000 VA |
76 A |
3~ NPE 400/230 V; 3~ NPE 380/220 V |
50 Hz / 60 Hz (45 - 65 Hz) |
0 - 1 ind. / cap. |
| Tauro Eco 50-3-P |
50,000 W |
50,000 VA |
76 A |
3~ NPE 400/230 V; 3~ NPE 380/220 V |
50 Hz / 60 Hz (45 - 65 Hz) |
0 - 1 ind. / cap. |
| Tauro Eco 99-3-P |
99,990 W |
99,990 VA |
152 A |
3~ NPE 400/230 V; 3~ NPE 380/220 V |
50 Hz / 60 Hz (45 - 65 Hz) |
0 - 1 ind. / cap. |
| Tauro Eco 100-3-P |
100,000 W |
100,000 VA |
152 A |
3~ NPE 400/230 V; 3~ NPE 380/220 V |
50 Hz / 60 Hz (45 - 65 Hz) |
0 - 1 ind. / cap. |
General Data
| Model |
Dimensions (HxWxD) |
Weight |
Degree of Protection |
Protection Class |
Night-time Consumption |
Cooling Technology |
Installation |
Ambient Temperature Range |
Certificates and Compliance |
| Tauro 50-3-P |
755 x 1,109 x 346 mm |
92 kg |
IP 65 |
1 |
< 16 W |
Active cooling technology and double wall system |
Indoor and outdoor |
-40 - +65 °C (direct sun possible) |
Refer to fronius.com/tauro-cert |
| Tauro Eco 50-3-P |
755 x 1,109 x 346 mm |
74 kg |
IP 65 |
1 |
< 16 W |
Active cooling technology and double wall system |
Indoor and outdoor |
-40 - +65 °C (direct sun possible) |
Refer to fronius.com/tauro-cert |
| Tauro Eco 99-3-P |
755 x 1,109 x 346 mm |
103 kg |
IP 65 |
1 |
< 16 W |
Active cooling technology and double wall system |
Indoor and outdoor |
-40 - +65 °C (direct sun possible) |
Refer to fronius.com/tauro-cert |
| Tauro Eco 100-3-P |
755 x 1,109 x 346 mm |
103 kg |
IP 65 |
1 |
< 16 W |
Active cooling technology and double wall system |
Indoor and outdoor |
-40 - +65 °C (direct sun possible) |
Refer to fronius.com/tauro-cert |
Efficiency
| Model |
Max. Efficiency |
European Efficiency (ηEU) |
MPP Adaptation Efficiency |
| Tauro 50-3-P |
98.6 % |
98.1 % |
> 99.9 % |
| Tauro Eco 50-3-P |
98.6 % |
98.1 % |
> 99.9 % |
| Tauro Eco 99-3-P |
98.5 % |
98.2 % |
> 99.9 % |
| Tauro Eco 100-3-P |
98.5 % |
98.2 % |
> 99.9 % |
Protective Devices
| Model |
DC Disconnector |
Overload Behaviour |
Reverse Polarity Protection |
RCMU |
DC Insulation Measurement |
DC/AC Surge Protection |
| Tauro 50-3-P |
Integrated |
Operating point shift, power limitation |
Integrated |
Yes |
Integrated |
Type 1 + 2 integrated, Type 2 optional |
| Tauro Eco 50-3-P |
Integrated |
Operating point shift, power limitation |
Integrated |
Yes |
Integrated |
Type 1 + 2 integrated, Type 2 optional |
| Tauro Eco 99-3-P |
Integrated |
Operating point shift, power limitation |
Integrated |
Yes |
Integrated |
Type 1 + 2 integrated, Type 2 optional |
| Tauro Eco 100-3-P |
Integrated |
Operating point shift, power limitation |
Integrated |
Yes |
Integrated |
Type 1 + 2 integrated, Type 2 optional |
AC Connection Technology
| Model |
Cable Cross Section |
AC Conductor Material |
Connection Terminals |
Single Core Option |
Multi Core Option |
AC Daisy Chaining Option |
| Tauro 50-3-P |
35 - 240 mm² |
Al and Cu |
Cable lug or V clamps |
Cable gland: 5 x M40 |
Cable gland: 1 x multi core connection Ø 16 - 61.4 mm + 1 x M32 |
Cable gland: 10 x M32 |
| Tauro Eco 50-3-P |
35 - 240 mm² |
Al and Cu |
Cable lug or V clamps |
Cable gland: 5 x M40 |
Cable gland: 1 x multi core connection Ø 16 - 61.4 mm + 1 x M32 |
Cable gland: 10 x M32 |
| Tauro Eco 99-3-P |
70 - 240 mm² |
Al and Cu |
Cable lug or V clamps |
Cable gland: 5 x M40 |
Cable gland: 1 x multi core connection Ø 16 - 61.4 mm + 1 x M32 |
Cable gland: 10 x M32 |
| Tauro Eco 100-3-P |
70 - 240 mm² |
Al and Cu |
Cable lug or V clamps |
Cable gland: 5 x M40 |
Cable gland: 1 x multi core connection Ø 16 - 61.4 mm + 1 x M32 |
Cable gland: 10 x M32 |
Interfaces
| Model |
Wi-Fi |
Ethernet |
USB |
Wired Shutdown |
RS485 Modbus RTU |
Digital Inputs/I/Os |
Datalogger and Webserver |
| Tauro 50-3-P |
Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
2x Ethernet LAN RJ45 10/100Mbit; max. 100m |
1A @5V max. |
Emergency stop |
2x RS485 Modbus RTU SunSpec |
Programmable interface for ripple control receiver, energy management, load control |
Integrated |
| Tauro Eco 50-3-P |
Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
2x Ethernet LAN RJ45 10/100Mbit; max. 100m |
1A @5V max. |
Emergency stop |
2x RS485 Modbus RTU SunSpec |
Programmable interface for ripple control receiver, energy management, load control |
Integrated |
| Tauro Eco 99-3-P |
Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
2x Ethernet LAN RJ45 10/100Mbit; max. 100m |
1A @5V max. |
Emergency stop |
2x RS485 Modbus RTU SunSpec |
Programmable interface for ripple control receiver, energy management, load control |
Integrated |
| Tauro Eco 100-3-P |
Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
2x Ethernet LAN RJ45 10/100Mbit; max. 100m |
1A @5V max. |
Emergency stop |
2x RS485 Modbus RTU SunSpec |
Programmable interface for ripple control receiver, energy management, load control |
Integrated |
DC Connection Technology
| Model |
Cable Cross Section |
DC Conductor Material |
Connection Terminals |
Cable Gland |
| Tauro 50-3-P |
25 - 95 mm² |
Al and Cu |
Cable lug or V clamps |
6 x M40 |
| Tauro Eco 50-3-P |
25 - 95 mm² |
Al and Cu |
Cable lug or V clamps |
6 x M40 |
| Tauro Eco 99-3-P |
25 - 95 mm² |
Al and Cu |
Cable lug or V clamps |
6 x M40 |
| Tauro Eco 100-3-P |
25 - 95 mm² |
Al and Cu |
Cable lug or V clamps |
6 x M40 |
Efficiency and Temperature Derating Curves
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Efficiency curves display the performance of the inverters at different voltage levels.
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Temperature derating curves indicate the power output in relation to ambient temperature for different DC voltages.
