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AC Combiner Box 16 A Three-Phase with Type 2 SPD and 300 mA Type A RCD
AC Combiner Box 16 A Three-Phase with Type 2 SPD and 300 mA Type A RCD
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€187.40
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€187.40
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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 16 A Three-Phase with Type 2 SPD and 300 mA Type A RCD
Alternating current combiner box for three-phase photovoltaic systems, complete with residual current protection. It is installed on the AC side between the inverter output and the distribution board and brings together in a single enclosure all the protections required on the grid connection line: overcurrent protection, residual current protection and surge protection.
The equipment includes a 16 A miniature circuit breaker against overloads and short circuits, a Type 2 surge protective device (class II) against transient overvoltages caused by indirect lightning strikes and switching operations, and a 300 mA Type A residual current device. The 300 mA sensitivity is the value typically used for protection against fire risks due to earth leakage currents; Type A ensures tripping even with pulsating unidirectional fault currents, the kind that can occur downstream of electronic equipment such as photovoltaic inverters.
Key features
Complete protection set16 A miniature circuit breaker, 300 mA Type A RCD and Type 2 surge arrester in a single pre-wired box.
Type A RCDTrips on alternating and pulsating unidirectional earth fault currents, suitable where power electronics are present.
300 mA sensitivityA setting aimed at protection against fire risks caused by earth leakage.
Type 2 surge arresterLimits transient overvoltages coming from the grid, protecting the inverter and the downstream loads.
16 A three-phase ratingSuitable for inverters with an indicative power of up to about 11 kW on a 400 V grid.
Tidy installation319 × 259 × 144 mm for 2.6 kg: a single wall-mounted enclosure instead of several devices scattered across the distribution board.
Technical specifications
| Feature | Value |
|---|---|
| Switchboard type | AC combiner box for photovoltaic systems with residual current protection |
| System side | Alternating current (AC), between the inverter and the distribution board |
| Number of poles / phases | Three-phase (3L + N) |
| Nominal current | 16 A |
| Indicative inverter power | Up to approx. 11 kW (400 V three-phase, 16 A) |
| Surge protective device (type) | Type 2 SPD (class II) |
| Miniature circuit breaker (MCB) | Sì, 16 A |
| Residual current device (RCD) | Yes, 300 mA Type A |
| Dedicated isolator switch | Not present: isolation is provided by the miniature circuit breaker |
| Dimensions | 319 × 259 × 144 mm |
| Weight | 2.6 kg |
| Reference standards of the components | EN 61643-11 (surge protective devices), EN 60898-1 (miniature circuit breakers), EN 61008-1 / EN 61009-1 (residual current devices) |
Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.