Three-phase AC panel with SPI - 2 x 10.0 kW inverters (total 20 kW)
Three-phase AC panel with SPI - 2 x 10.0 kW inverters (total 20 kW)
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20 kW Three-Phase Photovoltaic AC Panel with SPI and CEI 0-21 Interface Device for 10 kW + 10 kW Inverters
The 20 kW three-phase photovoltaic AC panel with an interface protection system (SPI) and a CEI 0-21 compliant interface device is an electrical panel designed for the management, protection, and control of the AC side in residential and commercial photovoltaic systems connected to the low-voltage electrical grid.
The panel is configured to manage two 10 kW three-phase photovoltaic inverters for a total system power of 20 kW. It integrates switching, protection, and control devices that enable the coordination of protections between the inverters and the distribution network in compliance with Italian technical regulations for the connection of power generation systems.
This AC panel for photovoltaic systems allows the safe connection of inverters to the electrical grid, ensuring compliance with the technical requirements set out by the CEI 0-21 regulations for systems connected to the low-voltage distribution network.
Function of the AC Panel in Photovoltaic Systems
The AC electrical panel represents the interface between the photovoltaic inverters and the electrical grid. Its main function is to manage the AC side of the system, ensuring electrical safety, component protection, and the continuous operation of the generation system.
The interface protection system constantly monitors the main parameters of the electrical grid, including:
- grid voltage
- frequency
- phase balance
- operating conditions of the electrical line
In the event of anomalies or values that do not comply with the limits set by the regulations, the system automatically intervenes by disconnecting the system from the electrical grid to ensure the safety of the system and the distribution network.
The AC panel also enables the coordination of protections between the inverters and the electrical grid, reducing the risk of faults and improving the reliability of the photovoltaic system.
Main Features of the 20 kW Photovoltaic AC Panel
- AC side management of two 10 kW three-phase photovoltaic inverters
- Total photovoltaic system power up to 20 kW
- SPI interface protection system compliant with the CEI 0-21 regulations
- 4-pole 40A main isolator
- 4-pole 40A AC-3 contactor with 230 VAC control coil
- Fuse holder with line protection fuses
- Two 3P+N C-curve 20A residual current circuit breakers
- Two 4-pole 300 mA Type A residual current devices
- 3P+N Type II surge protection device
- Wall-mounted panel in an ABS enclosure with IP65 protection rating
Applications of the Three-Phase Photovoltaic AC Panel
- Three-phase residential photovoltaic systems
- Small-scale commercial photovoltaic systems
- Photovoltaic installations on homes and small businesses
- Photovoltaic systems with two inverters connected in parallel
- Systems connected to the low-voltage grid according to CEI 0-21
- Renewable energy electricity generation systems
Components Included in the AC Electrical Panel
- 1 wall-mounted panel in an ABS enclosure with IP65 protection rating
- 1 4-pole 40A main isolator
- 1 4-pole 40A AC-3 contactor with 230 VAC control coil
- 1 CEI 0-21 compliant SPI protection interface
- 1 fuse holder with associated fuses
- 2 3P+N C-curve 20A 6kA residual current circuit breakers
- 2 4-pole 300mA Type A residual current devices
- 1 3P+N Type II surge protection device
Technical Specifications of the Photovoltaic AC Panel
| Panel Type | Three-phase photovoltaic AC electrical panel with SPI interface protection |
|---|---|
| Inverter Configuration | 2 10 kW three-phase inverters |
| Rated System Power | 20 kW |
| Connection Regulations | CEI 0-21 |
| Overvoltage Protection | 3P+N Type II SPD |
| Panel Protection Rating | IP65 |
| Installation | Wall-mounted |
Installation of the AC Electrical Panel for Photovoltaic Systems
The AC electrical panel is designed for wall-mounted installation in technical areas or near the photovoltaic inverters. The ABS enclosure with IP65 protection allows installation even in outdoor environments or settings with dust and moisture.
The panel is supplied with accessories for wall mounting, cable glands for connecting the input and output cables, and reference technical documentation including an electrical diagram and instructions for correct installation.
The sizing and connection of the panel must be verified by a qualified electrical installer or the designer of the photovoltaic system based on the system's characteristics and the requirements of the electrical grid operator.
Frequently Asked Questions about the Photovoltaic AC Panel
What is the SPI system in photovoltaic systems?
The interface protection system is a device that constantly monitors the electrical grid parameters and automatically disconnects the photovoltaic system in the event of anomalies or conditions that do not comply with the limits set by the regulations.
For which systems is this AC panel designed?
The panel is designed for three-phase photovoltaic systems with two 10 kW inverters for a total power of 20 kW connected to the low-voltage distribution network.
Is a UPS required for the SPI to operate?
To ensure the correct power supply of the interface protection system, a dedicated external UPS may be required, generally with a nominal power of approximately 900 VA.
Related Search Terms
20 kW photovoltaic AC panel, three-phase photovoltaic electrical panel with SPI, CEI 0-21 interface protection panel, 10 kW inverter AC panel, photovoltaic inverter parallel panel, three-phase photovoltaic system electrical panel, CEI 0-21 photovoltaic interface protection panel
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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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