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AC Combiner Box Three-Phase 20 A with Type 1+2 SPD
AC Combiner Box Three-Phase 20 A with Type 1+2 SPD
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€181.03
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€181.03
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AC Combiner Box Three-Phase 20 A with Type 1+2 SPD
The alternating current combiner box is installed on the AC side of a photovoltaic system, between the three-phase inverter output and the main board. This version is fitted with a combined Type 1+2 surge arrester, the solution required when the building has a lightning protection system (LPS) or when there is a risk of a direct lightning strike on the structure or on the incoming lines.
The Type 1+2 surge arrester is able to discharge both the lightning current (10/350 µs waveform) and the induced surge pulses (8/20 µs waveform), thus performing coarse and fine protection functions in a single device. The box also includes a 20 A three-phase miniature circuit breaker with curve B for overload and short-circuit protection and for isolating the line. In this configuration no residual current device is fitted, so it must be provided upstream or downstream according to the system diagram.
Key features
Combined Type 1+2 surge arresterA single Noark device provides protection against lightning current (10/350 µs) and against induced overvoltages (8/20 µs).
Recommended with a lightning protection systemThis is the configuration to choose when the building has an LPS or when the incoming lines are exposed to direct lightning strikes.
20 A curve B MCBProtects the AC line against overloads and short circuits and allows the system to be isolated manually.
No RCD on boardThe configuration is intended for systems where residual current protection is already present in the main board or has to be chosen separately.
IP65 - IK08 watertight enclosureBox made of halogen-free recyclable plastic, resistant to UV rays and impacts, suitable for outdoor installation.
Low weightAt 1.9 kg it is the lightest of the AC boxes in the range, thanks to the absence of the residual current block.
Technical specifications
| Feature | Value |
|---|---|
| Switchboard type | AC combiner box (inverter-grid parallel panel) |
| System side | Alternating current (AC) |
| Number of poles / phases | Three-phase, 400 V AC |
| Nominal current | 20 A |
| Surge protective device (SPD) | Noark Type 1+2 (combined) SPD for AC networks |
| Miniature circuit breaker (MCB) | Noark three-phase, 20 A, curve B |
| Residual current device (RCD) | Not present |
| Rated voltage | 400 V AC |
| Rated insulation withstand voltage | 1500 V DC |
| Protection rating | IP65 |
| Impact resistance | IK08 |
| Enclosure | Recyclable halogen-free plastic material, UV resistant |
| Operating temperature | from -25 °C to +60 °C |
| Dimensions | 319 × 259 × 144 mm |
| Weight | 1.9 kg |
| Standards | IEC 61439-1, IEC 61439-2; LVD 2014/35/EU, EMC 2014/30/EU and RoHS 2011/65/EU directives |
Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.