Energidea
Viessmann Vitocharge VX3 4.6A

Viessmann

Series: Viessmann Vitocharge VX3 Series

Vitocharge VX3 4.6A

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

Partially verified

Best for

  • + Residential installations
  • + Single-phase residential installations
  • + Residential PV systems up to 5 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
  • ! Three-phase commercial/industrial installations
  • ! 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
  • - 0% smaller capacity than Vitocharge VX3 8.0A
  • - Mid-range option balancing capacity and project flexibility.

Ideal for

Ideal for installers who need a balanced 4 kWh option with 4.6 kW for mainstream project sizing.

Key Specifications

Phase

SINGLE_PHASE

Rated Output Power

4.6 kW

Vendor
Show All Specifications

Core Electrical

AC Phase1PVendor
AC Rated Power4.6 kWVendor
Max AC Output Current20 AVendor
Power Factor Range0.8...1Vendor
THD-Vendor
MPPT Count2Vendor
Max DC Voltage550 VVendor
MPPT Voltage Range85...450 VVendor
Max Current per MPPT13 AVendor
Recommended PV Power7 kWpVendor
Max Efficiency97 %Vendor
EU Efficiency96.5 %Vendor

Battery

Battery ChemistryLFPVendor
Battery Voltage ClassHVVendor
Battery Capacity Min4 kWhVendor
Battery Capacity Max12 kWhVendor
Max Charge Power3.5 kWVendor
Max Discharge Power3.5 kWVendor
Round-trip Efficiency-

Backup

Backup / EPS SupportedtrueVendor
Backup Rated Power4.6 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
Weight25 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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Run a single-product scenario check using the same Product Match rules.

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Compliance & Certifications

No compliance data available for this product.

Certifications

-

Documents & Downloads

DATASHEET PDF

Compatible Products - coming in Phase 3

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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Configuratie tipica de sistem

Standard Self-Consumption

Residential PV with storage

Tip de retea: On-grid

Potrivit pentru: Single-family homes seeking energy independence

Componente principale

Vitocharge VX3, PV Arrays, ViCare App

Note

Optimizes solar usage for household loads.

Declinare: 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

Tip de retea: On-grid

Potrivit pentru: Smart homes with high thermal and electrical coordination needs

Componente principale

Vitocharge VX3, Vitocal Heat Pump, Energy Meter

Note

Direct communication between inverter and heating system.

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

Emergency Backup

Resilience against power outages

Tip de retea: Hybrid with Backup

Potrivit pentru: Regions with unstable grid infrastructure

Componente principale

Vitocharge VX3, Backup Switch Box

Note

Provides power to essential loads during grid failure.

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

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