Viridian 405W Clearline Monofacial 60 Cell All Black MC4 Solar Panel
Viridian 405W Clearline Monofacial 60 Cell All Black MC4 Solar Panel
The Viridian Clearline fusion PV16-M10 405 W is an Monocrystalline silicon solar panel that mounts into the roof plane in place of tiles or slates, rather than on rails above them. It delivers 20.7 % module efficiency from a 1,722 × 1,134 mm frame.
About the Viridian Clearline fusion range
Clearline fusion is Viridian's roof-integrated system. The panels are fitted during the normal roofing programme and replace the tiles or slates beneath them, which keeps the array flush with the roof line and puts responsibility for weathertightness in one place.
It is specified at the roofing stage on new builds and full re-roofs, and it is the usual answer where a planning officer or a conservation area will not accept a surface-mounted array. The black frame and dark cells keep the array visually quiet on a front-facing roof.
Why installers specify this panel
- −0.35 %/°C power temperature coefficient — output falls away more slowly as the modules heat up through the middle of the day.
- All-black appearance — a black anodised frame and dark cells, for domestic roofs where the array has to be discreet.
- Long-dated warranty — 10-year product warranty; power warranty 90 % at 10 years and 80 % at 25 years.
Electrical characteristics (STC)
| Rated power (Pmax) | 405 W |
| Module efficiency | 20.7 % |
| Open-circuit voltage (Voc) | 37.05 V |
| Voltage at maximum power (Vmp) | 31.02 V |
| Short-circuit current (Isc) | 13.62 A |
| Current at maximum power (Imp) | 13.06 A |
| Power tolerance | ±5 % |
| Maximum system voltage | DC 1000 V |
| Maximum series fuse rating | 25 A |
STC: AM1.5, 1,000 W/m², 25 °C cell temperature.
Mechanical specification
| Cell technology | Monocrystalline silicon |
| Number of cells | 54 × 2 |
| Dimensions (L × W × thickness) | 1,722 × 1,134 × 70 mm |
| Aperture area | 1.885 m² |
| Weight | 25.0 kg |
| Connectors | Genuine Stäubli MC4 PV-KST4 / PV-KBT4 |
| Static roof loading (distributed) | 12.8 kg/m² |
| Characteristic wind resistance | 4.24 kPa |
| Positive design load (IEC 61215) | 5.40 kPa |
Temperature and load ratings
| Temperature coefficient of Pmax | −0.35 %/°C |
| Temperature coefficient of Voc | −0.28 %/°C |
| Temperature coefficient of Isc | +0.05 %/°C |
| Nominal operating cell temperature | 45.0 °C |
| Safety classification | Class II |
Warranty and certification
10-year product warranty; power warranty 90 % at 10 years and 80 % at 25 years. Certified to IEC 61215, IEC 61730, TÜV, MCS 005, MCS 012.
Array sizing
Each panel covers 1.95 m². A 4 kWp array needs 10 of them (4.05 kWp over about 20 m²). A 6 kWp array needs 15 of them (6.08 kWp over about 29 m²). At 25.0 kg each they are a two-person lift.
About Viridian
Viridian Solar is a UK manufacturer specialising in roof-integrated solar. Clearline fusion sits in the roof plane in place of tiles or slates rather than on rails above them, and holds BBA certification along with MCS 005 and MCS 012.
Datasheets, installation manuals and warranty documents for the Viridian Clearline fusion PV16-M10 are in the Documents tab below. Buying for a project? Contact our sales team at sales@clearraysolar.com for pallet pricing.
Build your complete solar system
Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
- Protection Devices
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.
