Used product. The SMA Sunny Boy SB 3000-IT is a single-phase On-Grid photovoltaic inverter designed for grid-connected residential solar installations. Manufactured by SMA Solar Technology AG in Germany, it belongs to the renowned Sunny Boy product family, recognized worldwide for its reliability, durability, and high-quality engineering.

Designed for small and medium-sized photovoltaic systems, the SB 3000-IT delivers a nominal AC output power of 2750 W and features a single independent MPPT (Maximum Power Point Tracker), making it particularly suitable for photovoltaic strings with identical orientation and inclination. Its wide DC input voltage range provides excellent flexibility in system design while ensuring efficient energy conversion under varying operating conditions.

One of the distinctive characteristics of this model is its passive cooling system, which utilizes a large rear aluminum heat sink instead of cooling fans. This design minimizes maintenance requirements, eliminates fan-related wear, and ensures silent operation while maintaining excellent thermal performance and long-term reliability.

The inverter is housed within an IP65-rated enclosure, providing effective protection against dust and water jets and making it suitable for both indoor and outdoor installations. The integrated LCD display allows convenient monitoring of operating parameters and system status, facilitating diagnostics and performance supervision.

• Condition: Tested and fully working.
• Warranty: 12-month warranty provided by Green Energy.

Technical Specifications

DC Input

• Maximum DC Input Voltage (VDC max): 600 V
• MPPT Voltage Range (VDC MPP): 280 – 480 V DC
• Maximum DC Input Current (IDC max): 12 A
• Number of MPPT Trackers: 1

AC Output

• Nominal AC Output Voltage (VAC nom): 230 V
• Nominal Grid Frequency: 50 / 60 Hz
• Nominal AC Output Power (PAC nom): 2750 W
• Nominal AC Output Current (IAC nom): 12 A
• Power Factor (cos φ): 1

General Specifications

• Model: SMA Sunny Boy SB 3000-IT
• Manufacturer: SMA Solar Technology AG
• Type: Single-Phase On-Grid Photovoltaic Inverter
• Number of MPPT Trackers: 1 Independent MPPT
• Protection Rating: IP65
• Cooling System: Passive cooling via aluminum heat sink
• Installation: Indoor / Outdoor
• Approximate Weight: 31 kg
• Country of Manufacture: Germany

Key Features

• Highly reliable SMA single-phase photovoltaic inverter
• Single independent MPPT for optimized photovoltaic string management
• Passive cooling system without fans for silent and maintenance-free operation
• IP65 protection rating suitable for outdoor installations
• Wide DC input voltage range for flexible photovoltaic system design
• High-quality German engineering and manufacturing
• Integrated LCD display for real-time monitoring of operating parameters
• Ideal for residential grid-connected photovoltaic installations
• Robust mechanical construction designed for long-term continuous operation

Ideal Applications

• Single-phase residential photovoltaic systems
• Outdoor installations requiring IP65 environmental protection
• Replacement of compatible SMA Sunny Boy series inverters
• Retrofit projects involving existing photovoltaic installations
• Systems utilizing a single photovoltaic string or compatible single-MPPT configurations
• Applications requiring silent operation and high long-term reliability

Package Contents

• 1 × SMA Sunny Boy SB 3000-IT Photovoltaic Inverter (as shown in the photographs)

Product Condition

• Tested and fully working
• Cosmetic condition as shown in the photographs
• May exhibit normal signs of previous installation and use
• Includes a 12-month warranty provided by Green Energy
• Compatibility with the destination photovoltaic system should be verified before installation

Important Note

Before installation, please verify the compatibility of the SMA Sunny Boy SB 3000-IT with the electrical characteristics of the photovoltaic system, including the MPPT voltage range (280 – 480 V DC), the maximum DC input voltage (600 V), and the applicable AC grid requirements. Installation and commissioning should be carried out by qualified personnel in accordance with local electrical regulations and photovoltaic installation standards.

The SMA Sunny Boy SB 3000-IT combines 2.75 kW of nominal output power, German-made engineering quality, passive fanless cooling, and the proven reliability of SMA photovoltaic technology, making it an excellent choice for residential photovoltaic retrofit applications and replacement installations requiring dependable long-term performance.