Energidea
Viessmann Vitocharge VX3 8.0A

Viessmann

Series: Viessmann Vitocharge VX3 Series

Vitocharge VX3 8.0A

Three-phase hybrid inverter all-in-one system with 4 kWh LFP battery

Partially verified

Best for

  • + Residential installations
  • + Three-phase installations
  • + Residential PV systems 5-10 kWp
  • + Projects requiring long warranty coverage
  • + LFP battery applications - verify cycle life from datasheet

Not ideal for

  • ! Large-scale C&I projects - consider commercial product line
  • ! Single-phase installations (unless manufacturer confirms support)
  • ! Backup/battery-backup projects (no EPS functionality)
  • ! Projects requiring future expansion - AIO unit does not support parallel expansion

In the Viessmann Vitocharge VX3 Series series

This is the 4 kWh variant.

Compared to other models

  • - 0% larger capacity than Vitocharge VX3 3.6A
  • - Maximum capacity option in this series.

Ideal for

Ideal for projects that prioritize maximum stored energy in the series while keeping 8 kW as the design reference.

Key Specifications

Phase

THREE_PHASE

Rated Output Power

8 kW

Vendor
Show All Specifications

Core Electrical

AC Phase3PVendor
AC Rated Power8 kWVendor
Max AC Output Current11.6 AVendor
Power Factor Range0.8...1Vendor
THD-Vendor
MPPT Count3Vendor
Max DC Voltage1000 VVendor
MPPT Voltage Range150...850 VVendor
Max Current per MPPT13 AVendor
Recommended PV Power12 kWpVendor
Max Efficiency97.5 %Vendor
EU Efficiency97 %Vendor

Battery

Battery ChemistryLFPVendor
Battery Voltage ClassHVVendor
Battery Capacity Min4 kWhVendor
Battery Capacity Max12 kWhVendor
Max Charge Power5 kWVendor
Max Discharge Power5 kWVendor
Round-trip Efficiency-

Backup

Backup / EPS SupportedtrueVendor
Backup Rated Power8 kWVendor
Switch Time-Vendor
Black StartYesVendor
Parallel SupportNoVendor
Max Parallel Units-Vendor
Generator Input Supported-

EMS & Communication

EMS ModesSelf-consumption, BackupVendor
Export Limitation SupportedtrueVendor
Meter Type SupportedModbus RTUVendor
Remote Monitoring PlatformViCareVendor
API SupportedtrueVendor

Environment & Mechanical

Cooling Method-Vendor
IP RatingIP20Vendor
Operating Temp Range5...35Vendor
Max Altitude2000 mVendor
Humidity Range0...95%Vendor
Wiring Terminal Type-
Max Cable Size-
Dimensions (W x H x D)600 x 500 x 250 mmVendor
Weight30 kgVendor
Noise40 dB(A)Vendor

Compliance & Warranty

DC Surge Protection-Vendor
AC Surge Protection-Vendor
AFCIYesVendor
Anti-islandingYesVendor
CertificationsVDE-AR-N 4105, CEVendor

Data Confidence & Verification

Partially verified

Data Sources

  • + Official datasheet - verified 2026-04-08
  • - Installation Manual - not available
  • - Certificate - not available

Data gaps that may affect your decision

  • ! Outdoor temperature range not specified - confirm outdoor suitability.
  • ! IP rating not documented - confirm installation location suitability.

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Compliance & Certifications

No compliance data available for this product.

Certifications

-

Documents & Downloads

DATASHEET PDF

Compatible Products - coming in Phase 3
Compare this productView SeriesStart Product MatchContact Vendor / Request Quote

Product data is sourced from manufacturers, official websites, and community contributions. Energidea does not guarantee completeness or accuracy. Installers should verify specifications, certifications, and compatibility with manufacturer documentation before quotation.

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Configuration systeme type

Standard Self-Consumption

Residential PV with storage

Type de reseau: On-grid

Adapte a: Single-family homes seeking energy independence

Composants principaux

Vitocharge VX3, PV Arrays, ViCare App

Notes

Optimizes solar usage for household loads.

Avertissement: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

Full Energy Management

PV + Storage + Heat Pump integration

Type de reseau: On-grid

Adapte a: Smart homes with high thermal and electrical coordination needs

Composants principaux

Vitocharge VX3, Vitocal Heat Pump, Energy Meter

Notes

Direct communication between inverter and heating system.

Avertissement: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

Emergency Backup

Resilience against power outages

Type de reseau: Hybrid with Backup

Adapte a: Regions with unstable grid infrastructure

Composants principaux

Vitocharge VX3, Backup Switch Box

Notes

Provides power to essential loads during grid failure.

Avertissement: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

Produits liés

Vitocharge VX3 6.0AVoir le produitVitocharge VX3 4.6AVoir le produitVitocharge VX3 3.6AVoir le produit