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AC Combiner Box 32 A Three-Phase with Type 2 SPD
AC Combiner Box 32 A Three-Phase with Type 2 SPD
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€139.77
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€139.77
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Businesses and non-Italian private customers: purchase with 22% VAT. The 10% rate is reserved for private customers resident in Italy — find out more.
Foreign companies entitled to 0% VAT: please write to info@litio.store.
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AC Combiner Box 32 A Three-Phase with Type 2 SPD
Alternating current combiner box for medium-power three-phase photovoltaic systems, to be installed on the AC side between the inverter output and the distribution board. It moves the protection devices dedicated to the photovoltaic system out of the consumer unit, with ready-made wiring that cuts installation times and makes the generation line immediately identifiable.
The box integrates a 32 A miniature circuit breaker, which protects the three-phase line against overload and short circuit and allows the inverter to be isolated, and a Type 2 surge protective device (class II) for limiting transient surges caused by indirect lightning strikes and grid switching operations. The 32 A size on a 400 V three-phase grid covers inverters up to roughly 22 kW.
Key features
For medium-power systems32 A three-phase: suited to inverters with an indicative power output of up to about 22 kW.
32 A circuit breakerIt protects the AC line running to the main board against overloads and short circuits.
Type 2 surge arresterThe class II SPD diverts transient surges to earth, protecting the inverter and the downstream loads.
Safe isolationIt allows the inverter to be isolated from the grid during maintenance, inspections and emergency work.
Pre-wired boxComponents already fitted and connected inside the enclosure: in the field only the line connections remain.
Sturdy enclosure319 × 259 × 144 mm for 2.2 kg, with room for wiring conductors of a larger cross-section.
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 | 32 A |
| Indicative inverter power | Up to approx. 22 kW (400 V three-phase, 32 A) |
| Surge protective device (type) | Type 2 SPD (class II) |
| Miniature circuit breaker (MCB) | Sì, 32 A |
| 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 | 2.2 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.