The SUN‑20K‑SG01HP3E is a robust, high‑voltage 20 kW three-phase hybrid inverter built by Deye for medium‑to‑large residential, commercial, or industrial energy systems. With direct support for high-voltage battery systems (160–700 V), this inverter maximizes system efficiency and reduces heat loss. It seamlessly integrates solar PV, grid power, and battery storage, offering stable backup, scalable deployment, and flexible energy management.

Key Features

• High‑Voltage Battery Integration: Supports 160–700 V DC batteries, compatible with both lithium-ion and lead-acid chemistries; smart BMS‑adaptive charging.

• Charge/Discharge Efficiency: Max charging and discharging current up to 50 A (sometimes rated conservatively as 37 A), ensuring fast energy cycling.

• PV Input & MPPT:

  • DC input capacity up to 26 kW; some sources list up to 32.5 kW depending on model revision.

  • Max DC voltage: 1,000 V; MPPT operating range: 150–850 V (some sources say up to 850 V)

  • Two MPPT channels, each handling two PV strings (2+2 config).

• AC Output & Backup:

  • Rated AC power: 20 kW, with apparent up to 22 kVA; peak output (off-grid) up to 1.5× rated for ~10 s.

  • Three-phase output (3L/N/PE, 220/380 V or 230/400 V) with support for 100% unbalanced loading per phase.

  • AC passthrough (grid-to-load) up to 80–100 A, depending on vendor statement.

• Scalability & Backup Flexibility: Supports parallel operation of up to 10 (some sources 16) units for stepwise scalability; AC coupling and generator input supported for hybrid configurations.

• Efficiency: Peak efficiency 97.6%, Euro ~97%, MPPT operation efficiency >99%.

• Smart Communication: Offers RS485, RS232, CAN, and optional Wi‑Fi, GPRS, 4G, LAN, with remote monitoring and firmware updates via integrated platforms.

• Energy Scheduling: Supports six programmable charge/discharge time periods, allows prioritization (PV → load → battery → grid) and generator-based charging.

• Protection & Safety:

  • Complete protections: reverse polarity, overcurrent, over/undervoltage, short-circuit, insulation resistance, residual current monitoring, surge protection type II/III, anti‑islanding.

  • IP65-rated for outdoor use; smart cooling system with noise ≤45–55 dB; operating temperature −40 °C to +60 °C (derating above ~45 °C); altitude up to 2000 m.

• Physical & Warranty Info:

  • Form factor: Wall‑mounted, dimensions around 408 × 638 × 237 mm, weight ~30.5 kg.

  • Warranty: Standard 5 years, optional extended up to 10 years based on installer/region.