TSUN + Wallbox

What Zerofy can do with TSUN and Wallbox

In practice

• Phase switching for Wallbox is coming to Zerofy. Until then the charger uses the phases it’s wired with, so on a three-phase connection solar charging needs at least about 4.1 kW of surplus (6 A × 3 × 230 V).
• Many TSUN systems are small (typically 0.8–3 kW). A balcony system rarely produces the 1.4 kW needed to start charging, so solar charging works best with larger TSUN installations; Smart mode can still move charging to the cheapest hours.
• Zerofy gets new TSUN data every 5 minutes and adjusts accordingly. A minimum runtime and an activation threshold in Autopilot keep passing clouds from interrupting charging.
• If your car is connected to Zerofy too, turn on Autopilot for either the car or the charger, not both.
• Wallbox’s Full green mode needs 6 A of surplus, about 1.4 kW single-phase or 3×6 A (about 4.1 kW) three-phase, and Wallbox asks for the inverter to be set to export mode. The Wallbox solar mode measures with its own meter, but Zerofy does not need it: Autopilot works out the surplus from the inverter you have connected.

What TSUN and Wallbox offer on their own

TSUN: TSUN offers no EV charger and no surplus-charging function. An 800 W balcony system also stays below the about 1.4 kW a charger needs at its 6 A minimum.

Wallbox: Wallbox’s own Solar Charging (formerly Eco-Smart) needs a power meter sold by Wallbox at the grid connection and offers “Eco” (solar plus grid) and “Full green” (surplus only). With the meter, Pulsar Max and Pulsar Pro can drop from three to one phase when surplus is low (“3P Optimization”; tethered Pulsar Max units from August 2025 production); no inverter brand is read directly.

Zerofy connects the two: it reads TSUN production and controls your Wallbox charger to match, together with your other devices in one app, with dynamic tariffs and forecast-based Smart mode.

Setting up TSUN and Wallbox in Zerofy

1. Connect TSUN

Zerofy connects to the TSUN cloud with your TSUN Smart login and reads your inverter data.

1. Register your system in the TSUN Smart app.
2. In Zerofy, add an inverter, choose TSUN and log in with your TSUN Smart credentials.

Good to know: Only TSUN Smart accounts work (inverter IDs starting with Y); TSUN Home accounts are not supported. Battery and meter data are only partly available, depending on the system.

Step-by-step guide for TSUN

2. Connect Wallbox

Wallbox chargers connect to Zerofy via OCPP 1.6J, which you switch on in the myWallbox app; Zerofy shows you the exact server and charge point identity to enter.

1. In Zerofy, add a Wallbox charger and copy the Server and Charge point identity.
2. In the myWallbox app, open the charger settings, go to External Management → OCPP and turn OCPP on.
3. Choose OCPP provider “Other”, paste both values, leave the password empty and save; the charger reboots and connects within 1–3 minutes.

Good to know: The charge point identity is case-sensitive, so use the copy buttons. While OCPP is active, charging is controlled from Zerofy instead of the myWallbox app; firmware updates, restarts and network settings stay in the myWallbox app.

Step-by-step guide for Wallbox

3. Turn on Autopilot

In Zerofy, open your Wallbox charger, turn on Autopilot and choose Solar – or Smart to also use dynamic tariffs and forecasts. Set the priority, activation threshold and minimum runtime.

Dynamic tariffs

Zerofy can also run your Wallbox charger on dynamic electricity prices (EPEX Spot or Nord Pool, e.g. Tibber or aWATTar) or on a fixed time-of-use tariff. Smart mode combines those prices with forecasts of your household consumption and your TSUN solar production.

Learn more about Smart Mode

About TSUN and Wallbox

TSUN – TSUN (TSUNESS Co., Ltd., Suzhou, China, with a German office in Frankfurt) makes microinverters from 300 W single units to 3.3 kW 6-in-1 units. In Europe it is mainly found in 800 W balcony systems such as the TSOL-MS800, often combined with TSUN balcony storage (MSU2000, MSU4000Elite). Monitoring app: TSUN Smart.

Wallbox – Wallbox is a Spanish charger maker whose small Pulsar series is one of Europe’s most widely sold wallboxes, as a tethered or socket version. In Germany, Austria and Switzerland it is also sold as ABL Pulsar. Products: Pulsar Plus, Pulsar Max, Pulsar Pro, Commander 2, Copper SB.

Manufacturer information last checked: October 2026.

All devices that work with TSUN