StecaGrid 300

300 W1 MPPT64–100 VSingle-phaseIP20Market: Europe & UK

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The Steca StecaGrid 300 is a 300 W solar inverter with 1 MPPT trackers. Below are the verified electrical specifications extracted from the manufacturer datasheet.

Technical Specifications

DC Input

Max DC Input Voltage: : 135 V
MPPT Voltage Range: : 64–100 V
Max Input Current (per MPPT): : 5 A
Max Short-Circuit Current (per MPPT): : 5.8 A
Start-up voltage: : 45 V
Max DC Input Power: : 320 W

AC Output & System

Nominal AC Output Power: : 300 W
AC phases: : Single-phase
Peak efficiency: : 94.8 %
European efficiency: : 93.4 %
MPPT Trackers: : 1
Strings per MPPT: : 1
Type: : String
Battery port: : No

Enclosure & service

Protection rating: : IP20
Dimensions (W × H × D): : 176 × 243 × 71 mm
Weight: : 1.4 kg
Noise at 1 m: : 32 dB

Best panel configuration

The panel setup from our catalog that comes closest to this inverter, calculated for -20°C to 35°C — no panel fits it without a warning.

TommaTechTOPCon

TT080-36TN10

Conditionally compatible

320 W

4 panels of 80 W

≈280 W in summer heat (-12%)

This setup has warnings: Tracking range (cold weather). Review it in the calculator before buying.

How to wire it · 4 per string

MPPT 1
1 string

Panel area: 1.9 m²
Panel weight: 22 kg
DC/AC ratio: 1.07×

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Datasheet

Download PDF0.4 MB

Sourcekontron-solar.com

Other Models in This Series

Model	AC Power	Max DC V	MPPT range
StecaGrid 300Current	300 W	135 V	64–100 V
StecaGrid 500	500 W	230 V	106–170 V

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