📋 Description

New product. Professional ABB UNO PVI-4.2-TL-OUTD photovoltaic inverter, designed to convert the energy generated by photovoltaic modules from direct current (DC) into alternating current (AC), feeding the generated power into the electrical grid. Belonging to the ABB UNO series, this inverter features a rated output power of 4,200 W, transformerless conversion technology and management of two photovoltaic input channels with independent MPPTs. Dual MPPT management allows two photovoltaic generators to be controlled separately, even when they have different installation conditions, orientations or tilt angles, while remaining within the electrical limits specified by the manufacturer. The unit features an enclosure with an IP65 protection rating, a front LCD display, LED status indicators and navigation buttons for viewing operating parameters. The photographed product is new and comes with an ABB manual, a box containing accessories and a mounting bracket, as shown in the pictures.

⚙️ Product Technical Specifications

Identification

• Manufacturer: ABB.

• Series: UNO.

• Model: PVI-4.2-TL-OUTD.

• Product Code (P/N): 3G799900100A.

• Serial Number (S/N): 1610139879.

• Production Order (WO): 420000020813.

• Customer Order (SO): 1160064754.

• Production Week: 10/2016.

• Origin: Made in Italy.

Photovoltaic Input – DC

• Maximum absolute voltage: 600 V DC.

• MPPT voltage range: 90–580 V DC.

• Full-power voltage range: 140–530 V DC.

• Maximum input current: 2 × 16 A.

• Maximum short-circuit current: 2 × 20 A.

• Number of input channels: 2.

• Number of independent MPPTs: 2.

• MPPT configuration: Independent or parallel, according to the operating modes specified by the manufacturer.

Electrical Output – AC

• Rated output power: 4,200 W.

• Rated voltage: 230 V AC.

• Rated frequency: 50 Hz.

• Maximum output current: 20 A.

• Power at cos φ = 1: 4,200 W at 50 °C ambient temperature.

• Power at cos φ = ±0.9: 4,200 W at 45 °C ambient temperature.

• Grid connection: Single-phase.

Protection and Environmental Conditions

• Protection rating: IP65.

• Electrical protection class: Class I.

• Operating temperature: −25 °C to +60 °C.

• Conversion technology: Transformerless, without a transformer.

• Standard indicated on the rating plate: DIN V VDE 0126-1-1.

• Certification: CE marking.

🔧 Main Functions

• Conversion of photovoltaic energy from direct current to alternating current.

• Management of 2 independent MPPTs to optimise energy production.

• Monitoring of electrical input and output parameters.

• Automatic monitoring of grid conditions.

• Protection against islanding operation (anti-islanding).

• Monitoring of electrical insulation conditions.

• Active and reactive power management according to the configured operating mode.

• Display of operating data via the LCD screen.

• Operating status and fault indication via LED indicators.

🏭 Applications

• Grid-connected residential photovoltaic systems.

• Solar power systems for commercial buildings.

• Small- and medium-sized photovoltaic installations.

• Systems with two separately managed photovoltaic generators.

• Installations with strings having different orientations or tilt angles, within the specified input limits.

• Distributed energy generation systems.

🔌 Connections and Components

• DC inputs: Quick-connect photovoltaic connectors.

• Photovoltaic channels: 2 MPPT inputs.

• AC output: Single-phase connection via internal terminal block.

• Earth connection: Mandatory PE terminal.

• Communication interface: RS485.

• Control contacts: Remote Control and Alarm, according to the configured operating mode.

• Front interface: LCD display and ESC, UP, DOWN and ENTER buttons.

• LED indicators: POWER, ALARM and GFI.

Note: The photographed model is the standard version without the -S suffix. It should therefore not be confused with the variant equipped with an integrated DC isolator.

✅ Advantages

• Rated power of 4.2 kW.

• Two independent MPPTs.

• Wide DC input voltage range.

• IP65 protection rating.

• Transformerless technology.

• Local monitoring via LCD display.

• Compact design for photovoltaic installations.

• Original ABB product with documentation and accessories visible in the photographs.

📦 Product Condition

• New product.

• External casing in excellent condition.

• Display and control panel intact.

• Mounting bracket included.

• ABB manual included.

• Accessory box included.

• Packaging and protective materials visible in the photographs.

• No documented operating test is available.

🛒 Items Included in the Sale

• 1 × ABB UNO PVI-4.2-TL-OUTD photovoltaic inverter.

• 1 × Mounting bracket.

• 1 × ABB installation manual.

• 1 × Box containing accessories and components, as shown in the photograph.

• Packaging and protective materials included.

Summary

Original ABB UNO PVI-4.2-TL-OUTD 4,200 W photovoltaic inverter, single-phase, featuring 2 independent MPPTs, maximum input voltage of 600 V DC, 230 V AC output, maximum output current of 20 A and IP65 protection rating. Transformerless technology, LCD display, RS485 interface and design for grid-connected photovoltaic installations.

New product, complete with manual, mounting bracket and accessories visible in the photographs.