Fronius ECO 27.0-3-S Inverter Series

Fronius ECO 27.0-3-S Inverter Series

Price range: R62631,84 through R70088,75

The fronius eco 27.0-3-s inverter series delivers high-performance three-phase grid-tie power in a compact and durable form. With a nominal output of 27 kW, IP66 rated housing and the innovative SnapINverter mounting system, this range is ideal for larger residential or commercial solar installations. Choose between the Lite version (DC OVP) or the WLAN version (with WiFi monitoring) as variations to suit your needs. Perfect for integration in South African systems, the inverter supports 580-1000 V DC input and comes from a trusted brand with global service.

Delivery: 5–7 working days after payment clearance.
Shipping: From R350 (final cost shown in cart before checkout).
Payment: PayFast or Direct EFT.
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Description

The Fronius ECO 27.0-3-s inverter series from Fronius stands out as a premium solution for grid-tie solar installations in South Africa, including in regions such as the North West. Built for projects requiring robust three-phase output and long-term reliability, the series includes two initial variants: the Lite version with DC over-voltage protection (DC OVP) and the WLAN version with WiFi monitoring and advanced features. As supplied via Rohen Services, each variant is configured to deliver seamless performance, easy maintenance and future expandability.

High Capacity & Smart Design

With a nominal AC output of 27 kW, the inverter suits larger homes, commercial buildings or solar farms requiring significant power export or self-consumption optimisation. The wide DC input range (580–1000 V) and high efficiency (up to 98.3%) ensure maximum yield from PV arrays. Fronius+1 The IP66 rated housing allows for both indoor and outdoor installation, making it adaptable to a variety of South African environments. Fronius

SnapINverter Technology

A key feature of the fronius eco series is the SnapINverter mounting system, which separates the connection compartment from the power stage. This means maintenance or service can often be carried out without full system shutdown — a major benefit for busy installations. Fronius+1

Variants of the Fronius ECO 27.0-3-S Inverter Series for Flexibility

Lite Version (DC OVP)

This version addresses core project needs without WiFi monitoring-extras. Ideal for installations where internet access is limited or monitoring is handled separately.

WLAN Version (DC OVP)

This variant includes built-in WiFi, enabling monitoring via Fronius Solar.web, remote updates and improved system management. Ideal for installations where remote diagnostics and live data are required.

Applications in South Africa

This inverter series suits:

  • Larger residential solar systems looking to maximise export or self-consumption.

  • Commercial installations (shops, offices, small factories) that need a robust three-phase inverter.

  • Solar farms or community energy projects locating in varied regions (including the North West) thanks to its IP66 rating and wide input range.
    Through Rohen Services you gain access to local support, service integration and trusted supply chains.

Competitor Comparison

Many inverters in the 25-30 kW class either lack advanced features like SnapINverter or require separate data manager installations. The Fronius ECO 27.0-3-S Inverter Series combines ease of installation, high efficiency and proven reliability from a global brand. Compared to generic imports, this means fewer maintenance issues and better lifecycle support.

Why Choose Through Rohen Services

By opting for the Fronius ECO 27.0-3-S Inverter Series via Rohen Services you align with South-African-based supply and support. The product listing is set up with clear variation logic for future model upgrades, and you have access to warranty support, installation guidance and system integration services.

Safety & Maintenance

To keep your system safe and working correctly, please follow these basic safety and maintenance guidelines. These apply to most solar, battery, inverter and electrical components supplied by Rohen Services.

General Safety:
• Ensure all products are installed by a qualified technician
• Do not open, modify or tamper with equipment
• Protect components from water ingress, dust and extreme heat
• Always switch off the power before handling electrical connections
• Use the product only within the manufacturer’s recommended limits

Battery Safety (where applicable):
• Keep batteries in a well-ventilated, dry environment
• Avoid direct sunlight and extreme temperatures
• Do not short-circuit the terminals
• Ensure communication cables are secured and undamaged

Maintenance:
• Check cables, breakers and connectors periodically for wear
• Keep components clean and free of debris
• Test backup systems during low-risk periods (for example during the day)
• Report unusual noises, smells or error messages immediately

Support:
If you are unsure about the safe operation of your product, contact Rohen Services on 082 449 0277 or sales@rohen.co.za. Our team can assist with inspections, diagnostics and maintenance across the North West Province.

Installation & Delivery

Installation & Delivery

Standard Delivery: 5–7 Business Days via The Courier Guy (Road Freight). Handling Time: Orders are processed within 1–2 Business Days. Total Delivery Time: 6–9 Business Days.

Professional Installation: Available across the North West Province (Klerksdorp, Potchefstroom, and surrounding areas) by our trained technicians.

For full details, see our Shipping & Delivery Policy.

Note: The price shown is for the product only. Installation is an optional service and is quoted separately based on your specific site requirements.

Warranty & Support

Rohen Services supplies all products with the official manufacturer warranty. Warranty periods vary by brand and product type, but most major items such as batteries, inverters and charge controllers include a 5-year warranty, with some models offering optional extensions.

Covered:
• Manufacturing or material defects
• Internal component or BMS faults under normal use
• Performance issues confirmed through warranty testing

Not covered:
• Incorrect installation or wiring
• Lightning, surge or grid damage
• Water ingress, physical damage or tampering
• Use outside the manufacturer’s specifications

Important:
For exact warranty terms on your specific product, please confirm with Rohen Services before installation or use. Some items such as cables, fuses, brackets and smaller accessories may carry limited warranties.

Support:
For warranty queries or troubleshooting, contact Rohen Services on 082 449 0277 or sales@rohen.co.za. Our team manages testing, claims and replacements for customers across the North West Province.

Specifications

Specification Value
Nominal AC Output 27 kW
DC Input Voltage Range 580-1000 V
Max Efficiency 98.3 %
Protection Class IP66
Dimensions (H×W×D) 725 × 510 × 225 mm
Weight 35.5-35.7 kg

FAQs

What is the nominal output of the Fronius ECO 27.0-3-S inverter?

It delivers a nominal AC output of 27 kW, suited to larger three-phase solar systems.

What does “IP66” mean for the unit?

IP66 indicates complete dust protection and protection against heavy jets of water — suitable for both indoor and outdoor installation.

Can the inverter be monitored remotely?

Yes- in the WLAN variant. The Lite variant lacks built-in WiFi but retains core functionality.

What does “DC OVP” stand for?

It stands for DC Over-Voltage Protection — a built-in safety feature protecting the inverter from excessive DC input voltage.

Is this inverter suitable for three-phase South African installations?

Yes — it supports 3-phase grid connection and is used in commercial, industrial and large residential installations.

Can I install it outdoors in the North West region?

Yes — with IP66 rating and wide ambient temperature range, the unit is suitable for harsh South African conditions.

What is SnapINverter mounting technology?

It’s a system by Fronius allowing fast installation and easy servicing: the electrical connection section and power stage are separate and hinged for easy access.

Which variant should I choose: Lite or WLAN?

Choose Lite if you prioritise core electrical performance at lower cost and don’t need built-in WiFi. Choose WLAN variant if remote monitoring and data access are important.

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