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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.
Delivery in 10-20 daysCombiner boxDC+AC sideLitio Store
DC+AC Combiner Box Type 1+2 SPD, 2 Strings 2 MPPT, 32 A Single-Phase, 40 A 300 mA RCCB
Combined DC+AC combiner box for single-phase photovoltaic systems, with complete protection on both sides of the inverter. It collects 2 PV strings on 2 MPPT inputs and is the recommended solution for homes fitted with a lightning protection system.
The DC side is protected by a Type 1+2 surge protective device for 1000 V DC and the AC side by a second Type 1+2 arrester: both are also able to discharge direct lightning current. The AC line is completed by a 32 A single-phase miniature circuit breaker and by a 40 A residual current circuit breaker with a 300 mA threshold, sized for protection against electrically caused fires.
Key features
Type 1+2 SPD on both sidesCombined arresters on DC and on AC, suitable for buildings with a lightning protection system.
40 A 300 mA residual current protectionThe 40 A residual current circuit breaker with a 300 mA threshold protects the AC line against earth faults and electrically caused fires.
32 A single-phase MCBIt protects the AC line against overload and short circuit and allows the inverter to be isolated from the distribution board.
2 strings, 2 MPPTThe two strings remain independent up to the inverter, with separate maximum power point tracking for each one.
All the protective devices in a single boxSPDs, MCB and RCCB already wired in one wall enclosure, instead of several separate boxes.
String voltage up to 1000 VSuitable for single-phase string inverters with a maximum input voltage of 1000 V DC.
Technical specifications
| Feature | Value |
|---|---|
| Switchboard type | Combined DC+AC combiner box with residual current protection |
| System side | Direct current and alternating current |
| Number of PV strings | 2 |
| MPPTs managed | 2 |
| Maximum PV voltage | 1000 V CC |
| DC surge protective device (SPD) | Type 1+2, 1000 V DC |
| AC surge protective device (SPD) | Type 1+2 |
| Miniature circuit breaker (MCB) | 32 A, single-phase (1P) |
| Residual current device (RCD) | 40 A, 300 mA |
| Number of poles / phases | Single-phase AC side |
| Dimensions (W × H × D) | 319 × 384 × 144 mm |
| Weight | 3.54 kg |
| Reference standards of the components | EN 61643-11 (AC SPDs), EN 61643-31 (PV SPDs), IEC/EN 60898-1 (MCB), IEC/EN 61008-1 or 61009-1 (RCD) |
Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.