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AC Combiner Box 20A Three-Phase with Type 2 SPD
AC Combiner Box 20A Three-Phase with Type 2 SPD
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€116.66
Regular price
Sale price
€116.66
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Price including VAT by delivery country
- Italy22% €142.32
- Germany19% €138.82
- France20% €139.99
- Austria20% €139.99
- Belgium21% €141.15
- Bulgaria20% €139.99
- Croatia25% €145.82
- Cyprus19% €138.82
- Czech Republic21% €141.15
- Denmark25% €145.82
- Estonia24% €144.65
- Finland25.5% €146.40
- Greece24% €144.65
- Hungary27% €148.15
- Ireland23% €143.49
- Latvia21% €141.15
- Lithuania21% €141.15
- Luxembourg17% €136.49
- Malta18% €137.65
- Netherlands21% €141.15
- Poland23% €143.49
- Portugal23% €143.49
- Romania21% €141.15
- Slovakia23% €143.49
- Slovenia22% €142.32
- Spain21% €141.15
- Sweden25% €145.82
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AC Combiner Box 20A Three-Phase with Type 2 SPD
Combiner box in alternating current for three-phase photovoltaic systems, to be installed on the AC side between the inverter output and the electrical distribution board. It gathers into a single enclosure the protection devices required on the grid connection line, simplifying field wiring and making the system tidier and easier to inspect.
The box contains a 20A miniature circuit breaker for overload and short-circuit protection of the three-phase line and for isolating the inverter, and a Type 2 surge protective device (class II) that diverts to earth transient surges of indirect atmospheric and switching origin. On a 400V three-phase grid, 20A corresponds roughly to inverters up to about 13.8kW.
Key features
Suitable for three-phase invertersConfiguration for a 3L + N grid: it protects the entire three-phase line leaving the inverter.
20A circuit breakerIt protects the cable running to the main board against overloads and short circuits and allows the inverter to be isolated.
Type 2 surge arresterIt limits transient surges coming from the grid and caused by indirect lightning strikes, protecting the inverter electronics.
Power rating20A on a 400V three-phase grid: suited to inverters with an indicative power output of up to about 13.8kW.
Pre-wired boxComponents already fitted and connected: on site only the incoming and outgoing cables need to be terminated.
Compact enclosureDimensions of 319 × 259 × 144 mm for 1.6 kg, suitable for wall mounting close to the inverter.
Technical specifications
| Feature | Value |
|---|---|
| Switchboard type | AC combiner box for photovoltaic systems |
| System side | Alternating current (AC), between the inverter and the distribution board |
| Number of poles / phases | Three-phase (3L + N) |
| Nominal current | 20A |
| Indicative inverter power | Up to approx. 13.8kW (400V three-phase, 20A) |
| Surge protective device (type) | Type 2 SPD (class II) |
| Miniature circuit breaker (MCB) | Yes, 20A |
| Residual current device (RCD) | Not present |
| Dedicated isolator switch | Not present: isolation is provided by the miniature circuit breaker |
| Dimensions | 319 × 259 × 144 mm |
| Weight | 1.6 kg |
| Reference standards of the components | EN 61643-11 (surge protective devices), EN 60898-1 (miniature circuit breakers) |
Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.