Solis 4kw grid tie Solar Inverter S6 Dual MPPT - built in DC isolator

Solis 4kw grid tie Solar Inverter For Homes

#2: SOL-4.0-S6-DT-DC Inverters - Main Units
#4: S6-GR1P4K-DC

Solis 4kw Data Sheet

Solis 4kw User Manual

Solis 4kw Warranty

Solis 4kw G100 Certification

Additional 5 year warranty click here.

Solis 5G 4.0kW Single-Phase Solar Inverter – High Efficiency & Smart Grid Ready

Why Choose the Solis 5G 4.0kW Inverter?

The Solis 5G Series 4.0kW inverter is the latest fifth-generation model designed for UK residential and small commercial solar installations. It combines ultra-high efficiency, smart grid functionality, and advanced safety features in a compact and durable design. Perfect for homes and businesses that want maximum solar energy output and compliance with UK standards.

Key Features

• Outstanding Efficiency:
  Delivers up to 97.8% maximum efficiency and 97.1% European efficiency for optimal energy conversion.

• Dual MPPT Design:
  Two independent MPPT trackers ensure accurate power optimisation, even with shading or multiple roof orientations.

• Wide Voltage Range:
  Ultra-low start-up voltage of 120V, operating across a broad 90V–520V MPPT range, and supporting up to 600V max input.

• Smart Grid Ready:
  Fully compatible with AS4777.2:2015 standard, featuring DRM (Demand Response Mode) and export power control.

• Built-in Export Limitation:
  Integrated system for UK grid compliance (requires CT clamp, sold separately).

• Advanced Safety Protection:
  Features AFCI arc-fault detection and integrated DC switch for enhanced safety during maintenance and emergencies.

Technical Specifications

• Rated Power: 4,000 W

• Max DC Power: 6,000 W

• MPPT Voltage Range: 90 V – 520 V

• DC Startup Voltage: 120 V

• Max Input Voltage: 600 V

• Max DC Current: 28 A

• Max DC Inputs: 2

• Efficiency:

  • Max: 97.8%

  • European: 97.1%

• Weight: 12 kg

• Integrated DC Switch: Yes

Important UK Installation Note

The Solis 4.0kW (SOL-4.0-5G-DT) inverter is rated above 16A per phase. For compliance, it must be installed according to G59/3 or G99 regulations.
If you need an inverter limited to 16A per phase, choose the Solis 3.6kW (SOL-3.6-5G-DT) model instead.