AC panel from 25 to 30 kW (single inverter) with CEI 0-21 interface
AC panel from 25 to 30 kW (single inverter) with CEI 0-21 interface
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**SHIPPING EXCLUDED
Three-phase 25-30 kW photovoltaic AC panel with SPI and CEI 0-21 interface device for single inverter
The three-phase 25-30 kW photovoltaic AC panel with interface protection system (SPI) and interface device compliant with CEI 0-21 regulations is an electrical panel designed for the management, protection, and control of the alternating current side in residential, commercial, and small-to-medium-power photovoltaic systems connected to the low-voltage electrical grid.
The electrical panel is configured for the management of a three-phase photovoltaic inverter with a power between 25 kW and 30 kW. It integrates electrical protection systems, automatic disconnection, and safety devices necessary to ensure the correct coordination between the inverter, the electrical line, and the distribution grid according to Italian technical regulations for the connection of production systems.
This AC panel for photovoltaic systems allows the safe connection of the inverter to the electrical grid, ensuring compliance with the technical requirements provided by CEI 0-21 regulations for the connection of production systems to the low-voltage distribution grid.
Function of the AC panel in photovoltaic systems
The photovoltaic AC electrical panel represents the interface point between the photovoltaic inverter and the electrical distribution grid. Its main function is to manage the alternating current side of the system, ensuring electrical safety, continuity of operation, and protection of the equipment.
The interface protection system constantly monitors the main parameters of the electrical grid, such as:
- grid voltage
- grid frequency
- phase asymmetry
- operating conditions of the electrical line
When anomalies or conditions outside the limits provided by the regulations are detected, the protection system intervenes automatically by disconnecting the photovoltaic system from the electrical grid to ensure the safety of the system and the distribution grid.
The AC panel also allows the coordination of electrical protections between the inverter, the connection line, and the public grid, reducing the risk of failures and improving the overall reliability of the photovoltaic system.
Main features of the 25-30 kW photovoltaic AC panel
- Alternating current side management for three-phase photovoltaic inverter from 25 to 30 kW
- Interface protection system compliant with CEI 0-21 regulations
- Interface device with automatic line disconnection
- Type 2 SPD surge arrester + CT for protection against atmospheric and switching overvoltages
- Magnetothermal and differential protection of electrical lines
- Modular contactor for automatic system disconnection
- Wall-mounted ABS enclosure with IP65 protection rating
- Modular components installed on DIN rail
- Ground and neutral bar for protection connections
Applications of the three-phase photovoltaic AC panel
- Medium-power residential photovoltaic systems
- Commercial photovoltaic systems on production buildings
- Installations on industrial roofs and warehouses
- Photovoltaic systems with single three-phase inverter
- Systems with low-voltage electrical grid connection according to CEI 0-21
- Solar energy production systems
Components included in the AC electrical panel
- 1 wall-mounted ABS enclosure with IP65 protection rating, dimensions 42 × 59 × 15 cm
- 2 four-pole 50A 10kA C-curve magnetothermal circuit breakers
- 1 stackable four-pole 50/63A 300mA Type A residual current block
- 1 230/400 Vac current-release disconnect
- 1 Type 2 SPD modular surge arrester + CT 40kA 3P+N 420 Vac
- 1 100A 4NA 230 Vac modular contactor
- 1 1P+N 10A 30mA 4.5kA C-curve Type A residual current magnetothermal circuit breaker
- 4 IP68 cable glands, diameter 4-8 mm
- 4 IP68 cable glands, diameter 13-18 mm
- 1 ground and neutral bar with mounting screws
- 1 CEI 0-21 compliant interface device with a delay greater than 5 seconds
Technical specifications of the photovoltaic AC panel
| Panel type | Three-phase photovoltaic AC electrical panel with SPI interface protection |
|---|---|
| Inverter configuration | 1 three-phase inverter from 25-30 kW |
| Connection regulations | CEI 0-21 |
| Overvoltage protection | Type 2 SPD + CT 40kA |
| Protection rating | IP65 |
| Installation | Wall-mounted enclosure for indoor or outdoor environments |
Installation of the AC electrical panel for photovoltaic systems
The AC panel is designed for wall-mounted installation in technical rooms, protected outdoor environments, or areas dedicated to the management of photovoltaic systems.
The ABS enclosure with IP65 protection rating ensures high protection of electrical components against dust and moisture, guaranteeing operational reliability even in environments exposed to atmospheric agents.
The sizing and configuration of the panel must be verified by the photovoltaic system designer or a qualified electrical installer based on the system power, the grid characteristics, and the requirements of the electrical grid operator.
Frequently asked questions about the photovoltaic AC panel
What is the SPI interface protection system
The interface protection system is a safety device that constantly monitors electrical grid parameters such as voltage and frequency, automatically disconnecting the photovoltaic system when conditions not compliant with the limits provided by technical regulations are detected.
For which systems is this AC panel suitable
The panel is designed for photovoltaic systems with a single three-phase inverter from 25 to 30 kW connected to the low-voltage electrical distribution grid.
What does the CEI 0-21 regulation establish
The CEI 0-21 regulation defines the technical rules for the connection of electrical energy production systems to the low-voltage distribution grid, establishing safety, protection, and management requirements for the interface between the system and the grid.
Related search terms
25 kW photovoltaic AC panel, 30 kW photovoltaic AC panel, CEI 0-21 three-phase photovoltaic electrical panel, photovoltaic interface protection panel, 30 kW photovoltaic inverter AC panel, three-phase photovoltaic system electrical panel, photovoltaic AC panel with SPI, electrical panel for three-phase photovoltaic inverter
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Important notes: Shipping and order handling costs are not included and will be communicated later during the quoting phase. These costs are due regardless of the chosen delivery method, including pickup at the premises.
Product prices may vary depending on availability and supplier terms at the time of the quote request. Images are for illustrative purposes only and may not accurately reflect the actual product; descriptions may contain errors. We recommend always checking the manufacturer's technical data sheet.
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