Surge protector
SOLARC SCS-40 type 2
TYPE 2 AC SURGE PROTECTOR FOR 230/400 V CONSUMER UNITS, WITH PLUG-IN MODULES
- Maximum Current
- Imax 40 kA
- Protection Level
- Up ≤ 1.8 kV
- Nominal Current
- In 20 kA
- Voltage Uc
- 275 V AC
Type 2 protection for the consumer unit
The surge protector diverts to earth the transient surges caused by lightning and grid switching before they reach your appliances. Compliant with IEC/EN 61643-11, for 230/400 V networks, from 1P to 4P.
Every earthing system
Suits TN-S, TN-C, TT and IT systems. Maximum continuous operating voltage Uc of 275 V.
Replacement without dismantling
Plug-in modules with indicator: green in service, red to replace. The cartridge is changed without removing the base or rewiring.
Response in under 25 ns
Flame-retardant reinforced nylon enclosure UL94 V-0, IP20, from -40 to +80 °C. 16 to 35 mm² earth conductor, 35 mm DIN rail mounting.
Documentation to download
*Product images may represent the product range, or be for illustration purposes only, and may not represent the product exactly.
Technical specifications
| SCS-40 | |
|---|---|
| References offered by Solenso | |
| SCS-40/2 | 275 V AC, Imax 40 kA, type 2, single-phase |
| SCS-40/4 | 275 V AC, Imax 40 kA, type 2, three-phase |
| Electrical specifications | |
| Test class | Type 2 (T2) |
| Rated network voltage | 230/400 V |
| Maximum continuous operating voltage Uc | 275 V |
| Nominal discharge current In | 20 kA |
| Maximum discharge current Imax | 40 kA |
| Voltage protection level Up | ≤ 1.8 kV |
| Response time | ≤ 25 ns |
| Number of poles | 1P, 2P, 3P, 4P |
| Earthing systems | TN-S, TN-C, TT, IT |
| Installation | |
| Mounting | 35 mm DIN rail |
| Recommended earth conductor | 16 to 35 mm², flexible stranded |
| Enclosure material | Flame-retardant reinforced nylon UL94 V-0 |
| Ingress protection | IP20 |
| Operating temperature | -40 to +80 °C |
| Indicator | Green in service, red to replace |
| Standard | IEC/EN 61643-11 |
Frequently asked questions
Is a surge protector required in a solar installation?
Wiring rules make it mandatory in some cases, notably when the building has a lightning rod or stands in an area heavily exposed to lightning, and call for a risk assessment in the others. A solar installation is particularly sensitive: the inverter links the roof panels to the consumer unit and is exposed to surges on both sides.
Type 1, type 2 or type 3 surge protector: which one?
Type 1 carries part of a direct lightning current and is required with a lightning rod. Type 2, like the SCS-40, protects the main consumer unit against surges coming through the grid: it is the most common protection in homes. Type 3 completes type 2 close to sensitive appliances far from the consumer unit.
Is a surge protector also needed on the DC side?
Yes, when the cables coming down from the panels are long or exposed. The DC side needs a dedicated photovoltaic surge protector, sized for the voltage of the panel strings. The SOLARC range includes models up to 1,500 V DC, presented in the downloadable catalogue.
See the whole protection range