Description
xSolis 5G 17kW Three-Phase Grid-Tied Solar Inverter – S5-GR3P17K-DC
The Solis S5-GR3P17K-DC is a 17kW three-phase grid-tied inverter for commercial solar installations. It achieves 98.7% maximum efficiency with natural convection cooling, meaning no fans and no moving parts that can wear out. Two independent MPPT trackers cover a wide voltage range from 160V to 1000V, with a low startup voltage of 180V for earlier morning generation.
Key Features
- 17kW rated output, three phase
- Maximum efficiency 98.7%
- 2 independent MPPT trackers
- MPPT voltage range: 160V to 1000V
- Low startup voltage: 180V
- 16A maximum string input current
- DC/AC ratio above 150%
- Natural convection cooling: no fans
- Standby consumption below 1W
- AFCI arc fault protection
- Export power control for grid limitation compliance
- IP66 rated enclosure
- SolisCloud monitoring
Product Overview
Natural convection cooling removes the fan failure risk that affects active-cooled inverters over a long service life. In dusty environments such as agricultural buildings or industrial sites, fans accumulate debris and require regular cleaning. A fanless design eliminates this maintenance requirement entirely.
The low startup voltage of 180V means the inverter begins generating at lower irradiance levels than most comparable units, which extends effective generation time at the beginning and end of the day. On a typical UK installation this can add meaningful extra output during spring and autumn mornings.
Applications
- Commercial and industrial rooftop solar systems
- Agricultural buildings and farm solar installations
- Sites requiring low-maintenance fanless inverter operation
- Installations with export limitation requirements
Installation Notes
Three-phase grid connection requires G99 compliance and DNO notification in the UK. Installation must be carried out by a qualified MCS-accredited installer. String voltage must be calculated under cold conditions to ensure it does not exceed the 1000V maximum input.
Specifications
x| Specification | Value |
|---|---|
| Model | S5-GR3P17K |
| Inverter Type | 3-phase string inverter, pure sine wave |
| Max. DC Input Power | 25,500 W |
| Max. Input Voltage | 1100 V |
| Nominal DC Input Voltage | 600 V |
| Start-up Voltage | 180 V |
| MPPT Voltage Range | 160 ~ 1000 V |
| Max. Input Current | 32 A / 32 A |
| Max. Short Circuit Current | 50 A / 50 A |
| Number of MPPT / Strings per MPPT | 2 / 2+4 |
| Rated AC Output Power | 17,000 W |
| Max. AC Output Power | 18,700 W |
| Nominal Output Voltage | 220/380 V or 230/400 V |
| Nominal AC Frequency | 50 / 60 Hz |
| Rated AC Output Current | 25.8 A / 24.6 A |
| Max. AC Output Current | 27 A |
| Maximum Efficiency | 98.7% |
| European Efficiency | 98.2% |
| Cooling Type | Intelligent fan |
| Communication | RS485 |
| Operating Temperature Range | -25°C to +60°C |
| Ingress Protection | IP66 |
| Dimensions (H x W x D) | 563 x 310 x 219 mm |
| Weight | 20.8 kg |
| Warranty | 5 years |
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.