The SMA Sunny Tripower 125 (STP125-70) is a high-performance three-phase inverter tailored for large-scale commercial PV systems, including ground-mounted arrays and complex rooftop installations. With its expansive feature set and robust design, it stands out as a flexible and reliable hub for efficient energy generation and smart system integration.
High Output with Precision Control
Delivers a substantial 125 kW of AC power, ideal for megawatt-scale commercial projects, while offering up to 150% PV array oversizing for enhanced flexibility.
12 Independent MPPT Channels
Equipped with 12 MPPT trackers and 24 string inputs, this inverter offers exceptional adaptability across multi-orientation modules and complex rooftops while efficiently handling high-current PV modules.
Yield Optimization with ShadeFix
Intelligent SMA ShadeFix software continuously maximizes output even under shaded conditions, monitoring and adjusting MPP tracking every ~6 minutes.
Smart Connected Monitoring
SMA Smart Connected provides free, automated monitoring via Sunny Portal, enabling early fault detection for reduced system downtime and improved yield management.
Enhanced Safety with Arc-Fault Protection
Features an integrated ArcFault Circuit Interrupter (SMA ArcFix) for early detection and interruption of arc faults, increasing system safety.
Seamless System Integration
Includes SMA Speedwire and Modbus communications to effortlessly connect with SMA commercial storage systems, EV charging infrastructure, and broader energy management platforms. Accessories like Wi-Fi support commissioning and diagnostics.
Robust Design and Grid Support
Operating across a wide MPP voltage range (180–1,000 V), it supports high module inputs (up to 30 A per tracker) and includes advanced cybersecurity, I-V diagnostics, and protection principles for reliable operation.
Reliable and Durable Construction
With IP65-rated weather protection, operating temperatures from –25 °C to +60 °C, a compact footprint measuring 1 020 × 795 × 360 mm, and a weight around 96 kg, it's both installation-friendly and built to last.
Warranty & Support
Comes with a 5-year standard warranty, with extensions available up to 20 years, offering long-term confidence in performance and support.
| Specification | Detail |
|---|---|
| AC Output Power | 125 kW (three-phase) |
| MPPT Trackers | 12 trackers, 24 string inputs |
| PV Oversizing Capability | Up to 150% of inverter capacity |
| Shade Management | SMA ShadeFix |
| Monitoring | SMA Smart Connected, Wi-Fi-enabled setup |
| Grid Integration | Speedwire, Modbus, Wi-Fi diagnostics |
| Safety Features | SMA ArcFix, I-V diagnostics, cyber protections |
| Protection Rating | IP65; –25 °C to +60 °C operating range |
| Dimensions (H × W × D) | 1 020 × 795 × 360 mm |
| Weight | ~96 kg |
| Warranty | 5 years (extendable to 20 years) |
Code: STP125-70
| Delivery Option | Delivery Time | Cost |
|---|---|---|
| Standard Delivery | 2-3 working days | £6.00 (£5.00 exVAT) |
| FREE Standard Delivery (orders over £99 exVAT) | 2-3 working days | FREE |
| Next Working Day Delivery (order before 2pm) | Next working day | £9.99 (£8.33 exVAT)* |
| Next Working Day by 12pm (order before 2pm) | Next working day | £20.00 (£16.67 exVAT) |
| Next Working Day by 10:30am (order before 2pm) | Next working day | £21.60 (£18.00 exVAT) |
| Saturday Delivery (order before 2pm Friday) | Next working day | £20.00 (£16.67 exVAT) |
Important: Orders placed after 2pm on Friday (or over the weekend) are processed on Monday for next working day delivery. Next Day & Saturday Delivery options NOT available on all products.
*FREE Next day delivery available on select products and will be clearly shown on the product page.
Please note: we cannot be held responsible for missed deliveries. Customers are advised to check their spam or junk folder to ensure tracking information and estimated delivery details are received.
Some products require specialist handling:
Last updated May 23, 2024
Thank you for your purchase, we hope you are happy with it.
However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange; please see below for more information on our returns policy.
RETURNS
If you find you have received the wrong or damaged item(s), you need to contact us within 7 days of receipt of goods. Any time after this you are responsible for returning the goods at your own cost following the standard returns process.
All returns must be postmarked and in writing within fourteen (14) days of the purchase date. All returned items must be in a new, unopened and unused condition, with all original tags and labels attached.
RETURN PROCESS
To return an item, please click the ‘Download Returns Form’ below and complete all data fields. You can then email this to our team once completed.
Place your item(s) securely in its original packaging along with the returns form.
Please note that the RMA# on the returns address is your original order number; please ensure to reference this on the returns address, as per below.
You are now ready to mail your return to the following address:
Attn: Returns
RMA #/Order No -
Eco WizardUnderfloor Wizard Ltd t/a ECO Wizard
Beechfield House
Winterton Way
Macclesfield
Cheshire
SK11 0LP
United Kingdom
We ask that all customers when returning products send the goods via a trackable courier service. Underfloor Wizard Ltd t/a ECO Wizard will not be held responsible for goods which do not arrive at our premises.
Please note, you will be responsible for all return shipping charges, unless in the instance of damaged/faulty goods received in which case we can issue you with a returns label to cover the cost of postage.
REFUNDS
After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your return has been processed.
Faults on installed products:
If a product that has been installed develops a fault, please contact us, do not uninstall the product yourself. We will arrange for an engineer or technical support from the brand to assist with diagnosing the fault. Once the fault has been confirmed we can then arrange for the necessary next steps to occur.
EXCEPTIONS
The following items cannot be returned or exchanged:
QUESTIONS
If you have any questions concerning our return policy, please contact us at: returns@ecowizard.co.uk
