S5-GC50K

Three-phase grid-tied string inverter

A three-phase grid-tied string inverter in 50 and 60 kW classes. Select the power class, review the specifications and bring your requirements to VOLFAC.

AC output: 50 kW
MPPT trackers: 5
Max. efficiency: 98.7 %
Enclosure protection: IP66

Select power classS5-GC familyS5-GC(50-60)K family

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Product overview

Five or six MPPT inputs for commercial arrays.

The S5-GC50K feeds a three-phase 380/400 V grid from strings of up to 1,100 V. Each MPPT input takes two strings at up to 32 A. Solis lists string monitoring with I-V curve scanning, 24-hour consumption monitoring and a night-time reactive power function for the series; AFCI 2.0 and night-time PID recovery are options.

Five or six MPPT inputsFive MPPT inputs on the 50 kW model and six on the 60 kW model, two strings each.
98.7 % maximum efficiencyMaximum efficiency of 98.7 % and EU efficiency of 98.3 %.
String monitoringString monitoring with I-V curve scanning and multi-peak scan.
IP66 enclosureIP66 with fan cooling, for −25 °C to +60 °C ambient temperature and up to 4,000 m.

Technical specifications

Know the details.

S5-GC50K

SolisFamily S5-GCModel S5-GC50K

Brand SolisFamily S5-GC(50-60)KSelected model S5-GC50K

PV input

Max. input voltage: 1,100 V
Rated voltage: 600 V
Start-up voltage: 195 V
MPPT voltage range: 180–1,000 V
Max. input current: 5 × 32 A
Max. short-circuit current: 5 × 40 A
MPPT trackers / max. input strings: 5 / 10

AC output

Rated output power: 50 kW
Max. apparent output power: 55 kVA
Max. output power: 55 kW
Rated grid voltage: 3/N/PE, 220 V / 380 V, 230 V / 400 V
Rated grid frequency: 50 Hz / 60 Hz
Rated grid output current (380 V / 400 V): 76.0 A / 72.2 A
Max. output current: 83.6 A
Power factor: > 0.99 (0.8 leading to 0.8 lagging)
THDi: < 3 %

Efficiency

Max. efficiency: 98.7 %
EU efficiency: 98.3 %

Protection

DC reverse-polarity protection: Yes
Short-circuit protection: Yes
Output over-current protection: Yes
Surge protection: DC Type II / AC Type II
Grid monitoring: Yes
Anti-islanding protection: Yes
Temperature protection: Yes
String monitoring: Yes
I-V curve scanning: Yes
Multi-peak scan: Yes
Integrated AFCI 2.0: Optional
Integrated PID recovery: Optional; excludes night-time var compensation and negative grounding
Integrated DC switch: Yes

General data

Dimensions (W × H × D): 691 × 578 × 338 mm
Weight: 53.7 kg
Topology: Transformerless
Self-consumption (night): < 1 W
Operating ambient temperature: −25 °C to +60 °C
Relative humidity: 0–100 %
Ingress protection: IP66
Noise emission (typical): < 55 dB(A)
Cooling: Intelligent fan cooling
Max. operating altitude: 4,000 m
DC connection: MC4 connector
AC connection: OT terminal (max. 70 mm²)
Display: LCD
Communication: RS485, USB; optional Wi-Fi, GPRS

Standards

Grid connection: G99, VDE-AR-N 4105 / VDE V 0124, EN 50549-1, VDE 0126 / UTE C 15 / VFR:2019, RD 1699 / RD 244 / UNE 206006 / UNE 206007-1, CEI 0-21, C10/11, NRS 097-2-1, EIFS 2018.2, IEC 62116, IEC 61727, IEC 60068, IEC 61683, EN 50530
Safety / EMC: IEC 62109-1/-2, IEC 62116, IEC 61000-6-1/-2/-3/-4

Source: Solis product pageSolis — S5-GC(50-60)K product page and the datasheet (Global, V3.8, December 2025).

Downloads

Product documents.

Technical datasheetS5-GC(50-60)K · English · PDFS5-GC(50-60)K · English · PDF
Installation and user manualS5-GC(50-70)K · English · PDFS5-GC(50-70)K · English · PDF
EU declaration of conformityS5-GC(50-60)K · English · PDFS5-GC50K, S5-GC60K and related S5-GC models · English · PDF
Safety certificate IEC/EN 62109-1/-2S5-GC(50-60)K · English · PDFS5-GC50K, S5-GC60K and related S5-GC models · English · PDF