SMA Sunny Tripower 5.0 Smart Energy (STP5.0-3SE-40)5kW three-phase hybrid inverter for high-voltage batteries

Overview

The STP5.0-3SE-40 is the 5kW entry model of the Sunny Tripower Smart Energy range: a three-phase hybrid inverter with two MPP trackers for up to 7.5kWp of PV, each input taking 4.5kW at 12.5A. The battery input charges at up to 7.5kW and discharges at 6kW. In backup mode it supplies 5kW across three phases (1660W on a single phase), with 6kW for five minutes. With SMA Home Storage it needs at least two modules (6.56kWh).

• 5, 6, 8 and 10kW three-phase models
• Two MPP trackers, 1000V max., up to 15kWp PV
• High-voltage battery input 150–600V, 30A
• Three-phase backup, switch-over 30ms to 10s
• SMA ShadeFix and SMA Smart Connected included
• IP65, convection cooled, 30kg

How it works

Sunny Tripower Smart Energy is a transformerless hybrid inverter with two MPP trackers and one DC-coupled input for a high-voltage lithium-ion battery. It feeds PV power into the battery or into the three-phase grid and discharges the battery into the household. In systems with additional PV inverters it can also charge the battery from their AC output. An SMA Energy Meter (EMETER-20) or Sunny Home Manager 2.0 at the grid connection point is required for operation.

Key features

The four sizes accept up to 7.5, 9, 12 and 15kWp of PV at up to 1000V, with 12.5A per input; the 10kW model takes two strings and 25A on input B. The battery input covers 150–600V at 30A, with charge power of 7.5–10.6kW depending on model. When backup is enabled, loads on the AC-BACKUP terminal stay supplied in a three-phase off-grid network during outages, up to the rated power, with short overload reserves and an adjustable switching time of 30ms to 10s.

Installation and compatibility

The 500×598×173mm IP65 enclosure suits indoor and outdoor walls, with external terminals: SUNCLIX for PV, MC4 for the battery (3m cable included) and a plug-in AC connector for 1.5–10mm². No external RCD is needed; where local rules require one, use type A rated at least 100mA, one per inverter. Approved batteries include SMA Home Storage (6.5–16.4kWh), BYD Battery-Box Premium HVS/HVM, HVS+, HVM+ and HVB, LG RESU FLEX, BMZ Hyperion, IBC era:powerbase, AXITEC AXIstorage Li SH and Varta.wall.

Monitoring and grid codes

Commissioning runs through the integrated web interface or SMA 360° App over Wi-Fi or Ethernet, and the system appears in Sunny Portal and the SMA Energy App. SMA Smart Connected monitors the inverter and reports faults to the installer. Modbus (SMA and SunSpec), five digital inputs and a multifunction relay are available. SMA lists CEI 0-21 with internal or external interface protection, VDE-AR-N 4105, EN 50549-1, C10/11 and G98/G99. Warranty extends from 5 to 10 years with registration.

Questions and answers