SMA Sunny Boy 4.0 Inverter

Compact IP65 inverter with integrated web interface, Ethernet and availability-dependent WLAN.

Ideal for: Single-phase grid-connected homes subject to final string sizing and local approval.5-year factory warranty; registration-dependent extension terms are described by the manufacturer.

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Technical Specifications

Verified factory engineering metrics for this model.

Continuous Inverter Rating4 kW

Maximum Efficiency97%

Electrical PhaseSingle phase

Product Weight17.5 kg

Key Features & Capabilities

4 kW rated AC output at 230 V, 50 Hz
Two independent MPPT inputs with SMA ShadeFix
600 V maximum DC input voltage
Convection cooled IP65 enclosure

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Datasheets & Downloads

Official manufacturer documentation, warranty certificates, and technical spec sheets.

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SMA Sunny Boy 3.0–6.0 manufacturer datasheet

PDF Document

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PNG Technical Support

Catalog hardware is subject to the applicable manufacturer and supplier warranty terms confirmed for the proposal.