SMA STP 4.0-3AV-40

4000 W2 MPPT175–800 V

The SMA STP 4.0-3AV-40 is a 4000 W solar inverter with 2 MPPT trackers. Below are the verified electrical specifications extracted from the manufacturer datasheet.

Technical Specifications

DC Input

Max DC Input Voltage: : 850 V
MPPT Voltage Range: : 175–800 V
Max Input Current (per MPPT): : 12 A
Max Short-Circuit Current (per MPPT): : 18 A
Start-up voltage: : 150 V
Max DC Input Power: : 8,000 W

AC Output & System

Nominal AC Output Power: : 4,000 W
MPPT Trackers: : 2
Strings per MPPT: : 1
Type: : String

Best panel configuration

The most powerful fully compatible panel setup from our catalog, calculated for -20°C to 35°C.

Compatible

HPBC375 W

LONGi LGi7-54CHVD-375M

13.5 kWSTC

≈12.1 kW in summer heat (-11%)

36 panels · 18 per string · 2 MPPT

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Other Models in This Series

Model	AC Power	Max DC V	MPPT Range
STP 3.0-3AV-40	3000 W	850 V	140–800 V
STP 4.0-3AV-40Current	4000 W	850 V	175–800 V
STP 5.0-3AV-40	5000 W	850 V	215–800 V
STP 6.0-3AV-40	6000 W	850 V	260–800 V

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