Deye 3 Phase High Voltage Inverter

Deye 3‑Phase High‑Voltage Hybrid Inverter (e.g. SUN‑20K‑SG01HP3 / SUN‑30K / SUN‑50K series)

A robust, smart, and high-performance solar inverter designed for medium to large residential, commercial, and industrial applications. Ideal for grid-tied, off-grid, or hybrid energy systems, the Deye high-voltage series delivers scalable and efficient power management with flexible battery support and advanced energy control features.

🔋 Key Features

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  High‑voltage battery compatibility: Supports lithium-ion or lead–acid batteries between 160 V and 700 V (some models support up to 800 V or 1000 V range) for increased efficiency and scalability. PV Power

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  Hybrid operation: Seamlessly manages solar input, battery storage, and grid power in multiple modes—grid‑tie, off‑grid, AC‑coupled retrofits, or generator backup. PT Online+1Dnea+1

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  Unbalanced 3‑phase output: Offers 100% unbalanced load support per phase, allowing real-world flexibility when phases are unevenly loaded.

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  Parallel expandability: Connect up to 10 units in parallel for multi-kilowatt installations (varies by model) to scale capacity cost-effectively.

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  Smart control & scheduling: Supports programmable battery charging/discharging across 6 time periods, programmable supply priority (PV / Battery / Grid), and remote system control via RS485, CAN, Wi-Fi, LAN, or 4G.

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⚙ Technical Specifications (20 kW Model Example – SUN‑20K‑SG01HP3‑EU‑BM3/4)

Battery Input

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  Battery Type: Lithium-ion or lead-acid

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  Voltage Range: 160 V–700 V (some variants up to 800 V)

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  Charging/Discharging Current: Up to 50 A + 50 A

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  Battery Ports: 1–2 depending on model

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  Smart BMS Interface: CAN / RS485

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  Charging Curve: Self-adaptive to BMS

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PV Input

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  Maximum DC Power: 26 kW

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  Maximum DC Voltage: 1000 V

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  MPPT Range: 150 V–850 V

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  Start Voltage: ~180 V

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  MPPT Channels: 2 (2 strings per channel)

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AC Output

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  Rated/UPS Power: 20 kW

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  Maximum Output: 22 kW (1.1× capacity)

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  Peak Power: 1.5× for 10 seconds (off-grid)

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  Rated Current: ~30.4 A per phase

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  Maximum Continuous Passthrough (grid-to-load): ~80 A

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  Power Factor Range: 0.8 (leading) to 0.8 (lagging)

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  Frequency / Voltages: 50/60 Hz; 3L/N/PE – 220/380 V or 230/400 V

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Efficiency & Protection

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  Maximum Efficiency: ~97.6%

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  Euro Efficiency: ~97.0%

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  MPPT Efficiency: ≥ 99.9%

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  Safety Features: Anti-islanding, surge protection (DC/AC Type II), short circuit protection, insulation monitoring, RCD, earth fault detection, automatic shutdown on overload or overtemp

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Physical & Environmental

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  Enclosure Rating: IP65 (Outdoor-capable)

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  Cooling: Intelligent air-cooled with noise ≤ 45 dB

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  Operating Temperature: –40 °C to 60 °C (derate above 45 °C)

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  Size: ~434 × 645 × 245 mm (20 kW), larger for bigger models

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  Weight: ~26–30 kg (20 kW); up to 75–97 kg for 30–80 kW models

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Certifications & Standards

Fully compliant with local and international grid standards including IEC 61727, CEI 0-21, NRS 097, G99, VDE‑AR‑N 4105, as well as EMI safety standards IEC/EN 61000-6-1/2/3/4, IEC/EN 62109‑1/2.

✅ Why It Stands Out in South Africa

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  Reliable backup: In off-grid mode, switchover occurs in under 10 ms—ensuring a seamless UPS-like experience during power outages.

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  Efficient and compact: High DC/AC ratio (up to 1.3) allows installation of additional PV capacity without oversizing the inverter.

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  User-verified robustness: Solar professionals report robust long-term performance, often comparing favorably vs Victron or Huawei in reliability and price.

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🧭 Model Selection Overview

— For higher capacity systems (e.g. 50 kW or 80 kW), expect wider MPPT support, parallel-ready controls, and advanced EMS functions.