
Solis S5-GC25K 25kW 3 Phase Quad MPPT Inverter c/w Isolator 25.0kW
S5-GC25K
Solis S5-GC25K 25kW 3-Phase Inverter – Quad MPPT Commercial Inverter with Integrated Isolator
The Solis S5-GC25K is a 25kW three-phase string inverter with a 3/4 MPPT design, engineered for commercial PV installations. With a high efficiency of up to 98.8%, >150% DC/AC oversizing, and intelligent monitoring features, it provides excellent performance, flexible system design, and enhanced safety in a quiet, compact unit.
- Quad MPPT Design: Supports multi-orientation array configurations for higher generation efficiency and flexible system layouts.
- Superior Energy Yield: Delivers up to 98.8% efficiency with >150% DC/AC ratio and low startup voltage.
- Smart Monitoring & Control: Features I-V curve scan, string-level monitoring, and export power control with RS485, WiFi, and GPRS compatibility.
- Reliable Cooling & Protection: AFCI fire prevention and intelligent fan cooling ensure long-term reliability in demanding conditions.
- Commercial-Grade Build: IP66-rated with support for high-power modules, integrated isolator, and PID recovery for maximised uptime.
Technical Specification
- Rated Output Power: 25kW
- Max. Output Power: 27.5kW
- Max. Output Current: 41.8A
- Ingress Protection: IP66
- Dimensions & Weight: 647 x 629 x 252 mm, 38.2kg
✅ Install the Solis S5-GC25K for efficient, scalable, and intelligent solar energy generation in commercial PV projects!

Product | MPPT Inverter |
Type | MPPT |
Nominal Power Output | 25.0 kW |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.