• Description

Solis S5-GC75K-US-APST, 75kW Three Phase Eight MPPT Grid-Tied Commercial Inverter w/ AFCI w/ FAN w/APS TX

S5-GC(75-100)K-US is the preferred PV string inverter for large commercial rooftop or ground mount PV projects. The inverter features 10 independent MPPTs with very wide full-power operating ranges that can work efficiently with both 600Vdc and 1000 Vdc PV arrays. String current up to 16A, perfectly accommodates new high-power and bi-facial PV modules. Easy-to-use online O&M tools make O&M more intelligent and convenient. Optimized DC&AC interconnection will reduce the cost of system cables. Enclosures rated to IP66 protection grade can be installed in the harshest environmental conditions.

Product Features:

  • > 1.5 DC/AC ratio
  • UL 1741 SA and SB
  • DC side supports "Y" connector
  • Type 4X, C5 Anti-Corrosion Leve
  • Support aluminium wire to reduce cost
  • AFCI protection, proactively reduces fire risk
  • String current up to 16A for higher capacity modules
  • Intelligent string monitoring, smart I-V curve scan
  • 8/9/10 MPPTs, max. efficiency 98.8% (CEC efficiency 98.3%)
  • High quality components from globally recognized suppliers
  • Integrated nighttime PID recovery for optimal module performance
  • Remote firmware upgrade with simple operation(Requires the user to use Solis monitoring)

Product Specifications

Not only does this inverter offer significant cost savings by optimizing energy production, but it also contributes to environmental sustainability. It's suitable for a wide array of applications, from industrial facilities to large-scale solar farms.

Specifications Value
Models Input DC 75K
Max. input voltage 1000 V
Rated voltage 600 V
Start-up voltage 195 V
MPPT voltage range 180-1000 V
Max. input current 8*32 A
Max. short circuit current 8*50 A
MPPT number/Max. input strings number 8/16
Output AC
Rated output power 75 kW
Max. apparent output power 75 kVA
Max. output power 75 kW
Rated grid voltage 3?/PE, 480 V
Rated grid frequency 60 Hz
Max. output current 90.2 A
Power Factor >0.99 (0.8 leading - 0.8 lagging)
THDi <3%
Efficiency
Max. efficiency 98.70%
CEC efficiency 98.30%
Protection
DC reverse-polarity protection Yes
Surge protection DC Type II / AC Type II
Ground fault monitoring Yes
Anti-islanding protection Yes
Strings monitoring Yes
I/V Curve scanning Yes
Integrated PID recovery Yes
Rapid shutdown Yes
Integrated AFCI (DC arc-fault circuit protection) Yes
AC switch Yes
General Data
Dimensions (W*H*D) 41.9*22.3*13.6 in (1065*567*344.5 mm)
Weight 187 lbs (85 kgs)
Topology Transformerless
Self-consumption (night) <2 W
Relative humidity 0-100%
Operating ambient temperature range -22°F to 140°F (-30°C ~ +60°C )
Storage environment -40°F to 176°F (-40°C to 80°C)
Ingress protection TYPE 4X
Cooling concept Intelligent redundant fan-cooling
Max. operation altitude 13,120 ft (4000 m)
Compliance UL1741SB, UL1741SA, IEEE 1547-2018, UL1699B, UL1998, FCC Part15 ClassB, California Rule 21, Heco Rule 14H, NEC 690.12-2020, CAN/CSA C22.2107.1-1
Features
DC connection MC4 connector
AC connection OT Terminal (max. 350 MCM)
Display LCD
Communication RS485, Ethernet, Optional: Wi-Fi, Cellular
Warranty 10 Years

Product Manual

Solis 75kW Three Phase Eight MPPT w/ AFCI w/ FAN w/APS TX - 10 Year Standard Warranty (NS) Manual

Solis 75kW Three Phase Eight MPPT w/ AFCI w/ FAN w/APS TX - 10 Year Standard Warranty (NS) Data Sheet

Solis 75kW Three Phase Eight MPPT w/ AFCI w/ FAN w/APS TX - 10 Year Standard Warranty (NS) Certificate

Product Warranty

Solis Inverter are manufactured by Ginlong (Ningbo) Technologies Co., Ltd. (The Company) (refered to as Ginlong) provides the following Warranty to the purchaser (The Customer) of the Inverter (The Goods). (The Customer is deemed to be the owner of the installed Goods at first sale

Warranty Terms

The Company warrants all Goods to be free from defects in material or workmanship under normal use and service for a period of 5 years from the date of sale to the
Customer.

The Warranty covers the cost of repairs or replacement parts. The Goods must be returned to the Company for inspection.

The company may repair or replace faulty components at its discretion.

This warranty extends the Customer’s statutory rights and cannot be construed so as to diminish such statutory rights.

Warranty Extension

The purchaser may apply for a warranty extension within 12 months of purchase by providing the serial number of the unit along with proof of purchase. An extended
warranty can be purchased for a further 5 years (Total 10 years). 

Warranty Limitations

The Warranty is valid only for Goods purchased either directly from the Company or from an authorized reseller of the company. 

The Warranty is not transferable and applies to brand new Goods only.

Defective parts replaced under Warranty become the property of the Company.

The Warranty does not cover:

  • The Warranty does not cover:
  • Consequential damages including but not limited to loss of revenue;
  • Claims by third parties other than the Customer;
  • Defects of installation. (Except where the installation is performed by the Company);
  • Goods damaged as a consequence of incorrect installation. (Except where the installation is performed by the Company);
  • Items ancillary to installation not supplied by the Company;
  • Duties, import/export fees or costs and other general administrative costs;
  • Damage to Goods caused by misuse, improper handling or unauthorized modification;
  • Loss or damage occurring whilst in transit;
  • Accidental or willful damage;
  • Any Goods described in a quotation or delivery note as 'ex-display' or ‘reconditioned’. (A separate Warranty extension may have been issued
    to cover such Goods.)

Labour, travel and delivery (to and from customer) will be charged if goods returned found to be not faulty following a warranty claim.

Warranty Claims Procedure

To make a warranty claim the following information needs to be provided:

  • Completed RTM Inspection Form
  • Product Model (ie. Solis 1.5kW) and Product Serial Number (ie. A1110011) 
  • Copy of the invoice for the inverter
  • Copy of the installation report and installation certificate 

The authorized reseller will liaise with the Company regarding repair or replacement. The cost of repair or replacement will be borne by the Company provided the Warranty has been validated and the Warranty period has not expired.

Where repairs must be effected at the Company’s headquarters, the Company will endeavor to minimize the down time for the Goods.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
REAL REVIEWS, REAL RESULTS

Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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