Separate protection on each of the 3 panel strings, for three-phase systems of 15-20 kW; includes the sealable meter box of 355 x 225 x 140 mm.
The protection board is the place where a photovoltaic installation stops safely and where faults are stopped before they spread. It covers both energy paths: the one between the panels and the inverter and the one between the inverter and the main board of the building. When the panels are split over several strings, each string receives its own protection, so that a problem appearing on one of them does not drag the whole system with it.
The set is configured for three-phase installations with an inverter in the 15-20 kW range and a panel field split over 3 strings, typical for inverters with 2-3 MPPT trackers. Separation by strings allows a single group of panels to be isolated for intervention and limits the propagation of a fault to the rest of the installation. The board has a double role: it manages the fluctuations and surges coming from the grid or from atmospheric discharges and provides the disconnection point required at commissioning and during maintenance work. The included meter box is of hard plastic, measures 35.5 x 22.5 x 14 cm, protects the meter from dust, humidity and mechanical shocks and has holes for seals, in accordance with the requirements of the distribution operators for prosumer installations.
Product code 15-20-AC/DC-3str-tri, three-phase grid 3F+N, system/inverter power 15-20 kW, 3 DC string inputs. The DC section individually protects each string against surges and short circuits; the AC section protects the link between the inverter and the main board against short circuits, overloads and surges, with insulation appropriate for the 3F+N grid. Sealable meter box of hard plastic, 355 x 225 x 140 mm, with holes for seals, intended for on-grid prosumer-type systems.
Suitable for a large residential building or a small commercial headquarters, with a three-phase connection and a 15-20 kW inverter with several MPPT trackers.
| Product code | 15-20-AC/DC-3str-tri |
|---|---|
| Grid type | Trifazat (3F+N) |
| System / inverter power | 15 - 20 kW |
| DC inputs (strings) | 3 |
| DC protections | against surges and short circuits |
| AC protections | against surges, fluctuations and short circuits |
| Meter box | sealable, hard plastic, with holes for seals |
| Meter box dimensions | 355 x 225 x 140 mm |
| Intended use | on-grid / prosumer photovoltaic systems |
Generic product — standard specifications
The set (product code 15-20-AC/DC-3str-tri) consists of the AC/DC protection board for photovoltaic systems and the sealable box for the distribution operator's meter. It is configured for three-phase installations with an inverter in the 15-20 kW range and a photovoltaic field split over 3 strings, typical for systems with inverters with 2-3 MPPT trackers.
The direct current section takes the 3 module strings and protects them individually against surges and short circuits. Separation by string allows both the isolation of a string for intervention and the limitation of fault propagation to the rest of the installation. The alternating current section protects the link between the inverter and the main board against short circuits, overloads and surges, with insulation appropriate for a three-phase 3F+N grid.
The functional role of the board is double: on the one hand it manages the fluctuations and surges that appear from the grid or from atmospheric discharges, on the other hand it provides the visible disconnection point required at commissioning and during maintenance work.
The included meter box is of hard and resistant plastic, protects the meter from dust, humidity and mechanical shocks, measures 35.5 x 22.5 x 14 cm and is provided with holes for seals, in accordance with the requirements of the distribution operators for prosumer installations.
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