
Solis S5-GR3P20K 3 phase MPPT 20.0kW Inverter
S5-GR3P20K-DC
Solis S5-GR3P20K-DC-METER 20kW 3-Phase Inverter – Compact, Efficient PV Solution for Commercial & Industrial Systems
The Solis S5-GR3P20K-DC-METER is a 20kW three-phase inverter designed for residential, commercial, and light industrial solar PV installations. With dual MPPT inputs, wide voltage range, and export power control, this inverter offers flexible configuration, high performance, and smart connectivity in a compact, installer-friendly design.
- High Energy Efficiency: Reaches up to 98.7% max. efficiency with >150% DC/AC ratio for optimised output.
- Flexible MPPT Input: Dual MPPT configuration supports varied panel orientations and improves tracking accuracy.
- Built for Resilience: AFCI protection, automatic voltage stabilisation, and IP66 ingress protection ensure system safety and reliability.
- Smart Communication: Integrated support for RS485, WiFi, and GPRS for remote monitoring and system updates.
- Compact & Lightweight: Slim design with integrated DC switch makes installation quick and easy; weighs just 20kg.
Technical Specification
- Rated Output Power: 20kW
- Max. Efficiency: 98.7%
- String Current: Up to 16A
- Ingress Protection: IP66
- Weight: 20kg
✅ Install the Solis S5-GR3P20K-DC-METER for powerful, reliable, and smart performance in three-phase PV systems!

Product | MPPT Inverter |
Type | Dual MPPT |
Nominal Power Output | 20.0 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.