Solplanet ASW020K-TH20kW three-phase high-voltage hybrid inverter, 4 MPPT

Overview

The ASW020K-TH is a 20kW three-phase hybrid with four 20A MPP trackers, one string each, and space for up to 40kWp of PV. Its MPP range at full power is 500–850V, so strings must be long enough to reach it. One 50A battery input handles 120–800V and discharges at 20kW; combined PV and grid charging reaches 40kW. In backup the EPS port supplies 22kVA continuously and 40kVA for 10 seconds, and a three-phase generator of up to 24kVA can be connected on units built from November 2025.

• 15, 20, 25 and 30kW models with four MPP trackers
• Up to 200% PV oversizing, 1000V max. DC input
• 120–800V battery input, up to 2×50A on 25–30kW
• EPS output, diesel generator port and smart load control
• CHINT DTSU666 smart meter with CTs supplied
• IP66, operating from -30 to +60°C

How it works

The ASW TH series covers 15 to 30kW with four MPP trackers, a 1000V maximum input, 150–950V MPP range and 180V start-up voltage. The 15 and 20kW models take one string per tracker at 20A, the 25 and 30kW models two strings at 40A. The PV array can be twice the AC rating, for example 60kWp on the ASW030K-TH, and PV and grid together can charge the battery at up to twice the rated power.

The 15 and 20kW units have one battery input rated 50A; the 25 and 30kW units have two independent inputs of 50A each. Battery voltage may range from 120 to 800V and only LFP batteries approved by Solplanet are allowed. Discharge power equals the rated output, and the AC side delivers 110% of rated apparent power continuously, for example 33kVA on the 30kW model.

Backup, generator and parallel operation

Circuits on the EPS port stay powered during a grid failure, with a switch-over below 10ms and peaks of 30–45kVA for up to 10 seconds. Units built from November 2025 can start a three-phase diesel generator through a dry contact when the grid is lost and the battery is low; the generator port can instead feed a smart load switched by battery SOC. Parallel operation in on-grid mode needs the Solplanet Ai-Hub, production from August 2025 and software R008 or later.

Installation and compatibility

The wall-mounted inverter weighs 52kg (15–20kW) or 58kg (25–30kW) and works on TN-S, TN-C, TN-C-S and TT systems. Solplanet recommends AC breakers of 63A for 15kW, 80A for 20kW and 100A for 25–30kW. Approved batteries are the Solplanet Ai-HB G2, G2 Pro, G2-E and AP-H series. CEI 0-21 conformity is declared with Ai-HB G2 and G2 Pro batteries, and EN 50549-1 and EN 50549-10 certificates cover all models.

Monitoring and settings

A Wi-Fi/LAN dongle and a CHINT DTSU666 smart meter with current transformers are in the box, and export power control works through the meter. The inverter offers RS485 with Modbus RTU, Modbus TCP, seven digital inputs, three dry-contact outputs and a ripple control receiver interface. Setup, operating modes, generator and smart load options and the optional AFCI are handled in the Solplanet App.

Questions and answers