Description

Product Description

The Sungrow 33 kW PV Inverter is engineered for three-phase grid-tied solar installations where performance, flexibility, and durability are key. This inverter supports high DC input voltages up to 1100 V and multiple independent Maximum Power Point Trackers (MPPTs), enabling optimal energy extraction from diverse string configurations and partially shaded arrays. Advanced functions such as PID recovery, smart IV curve diagnosis, and integrated string monitoring improve yield and reduce operational downtime. Built with robust IP66 protection and high corrosion resistance, the inverter is suitable for outdoor and demanding commercial environments. Comprehensive safety protections, including surge protection and grid compliance features, ensure secure operation while integrated monitoring and optional communication interfaces support remote diagnostics and performance tracking.

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Technical Specifications (Bullet Form)

Output (AC)

• Rated AC output power: 33 000 W (33 kW)

• Maximum AC apparent power: ~36.3 kVA

• Nominal AC voltage: 3 / N / PE, 230 V / 400 V

• AC voltage operating range: 312 – 528 V

• Maximum AC output current: ~55.2 A

• Grid frequency range: 50 Hz / 60 Hz (with allowable operation 45–55 Hz and 55–65 Hz)

DC Input & MPPT

• Maximum PV input voltage: 1100 V

• Startup PV voltage: ~200 V

• MPPT voltage range: 200 – 1000 V

• Nominal PV input voltage: ~585 V

• Number of MPPT trackers: 3

• PV strings per MPPT: 2 (total 6 strings)

• Maximum PV input current per MPPT: ~26–30 A

Efficiency

• Maximum conversion efficiency: ~98.6 %

• European efficiency: ~98.3–98.4 %

Protections & Functions

• Built-in protections: DC reverse polarity, AC short-circuit protection, leakage current protection, ground fault monitoring

• Surge protection: DC Type I+II, AC Type II

• Anti-islanding and grid monitoring

• PID recovery function for PV module performance enhancement

• Q at night and other grid support functions available

Monitoring & Communication

• Communication interfaces: RS485 standard; optional Wi-Fi / Ethernet

• PV string current monitoring and smart IV curve diagnosis

Physical & Installation

• Protection rating: IP66 (dust and water ingress protection)

• Corrosion resistance: C5 (industrial/coastal environments)

• Cooling method: Smart forced-air cooling

• Dimensions (approx): 645 × 575 × 245 mm

• Weight (approx): 38–58 kg (depending on variant and configuration)

Environmental & Compliance

• Operating temperature range: typically -30 °C to 60 °C (derating above ~45 °C)

• Maximum operating altitude: Up to ~4000 m (site derating above ~3000 m)

• Harmonic distortion (THD) at rated power: < 3 %

• Compliance: IEC safety and grid standards (regional variants)

Typical Applications

• Commercial and industrial rooftop solar PV systems

• Ground-mounted and utility-scale PV installations

• High-yield projects with bifacial or high-power modules