AIKO 645W Stellar 1N+ N-Type ABC 72 Cell Silver Frame Dual Glass Solar Panel - 01C Connector
AIKO 645W Stellar 1N+ N-Type ABC 72 Cell Silver Frame Dual Glass Solar Panel - 01C Connector
The AIKO Stellar 1N+ 645 W is an N-Type ABC (All Back Contact) solar panel. AIKO's All-Back-Contact cell design moves every busbar to the rear of the cell, leaving the entire front face free to collect light. It delivers 23.9 % module efficiency from a 2,382 × 1,134 mm frame.
About the AIKO Stellar 1N+ range
The Stellar range is AIKO's utility and commercial line: large-format, silver-framed dual-glass modules aimed at getting the most kilowatt-peak onto a given roof area and cutting the balance-of-system cost per watt that comes with it.
At 2,382 mm tall and 2.70 m² this is a commercial-format module, intended for warehouse and barn roofs, ground mounts and solar farms where the extra length is not a constraint. It is usually too long for a typical domestic roof plane. Being bifacial, it earns most of its extra yield on flat roofs, ground mounts and light-coloured surfaces, where light reaches the back of the module; on a pitched tiled roof the rear-side gain is small.
Why installers specify this panel
- −0.26 %/°C power temperature coefficient — the array keeps more of its rated output on hot days, when a UK roof can sit far above the 25 °C the nameplate figure is measured at.
- Cell-level shade optimisation — the ABC cell structure recovers output around chimneys, vents and pole shadows without adding a separate optimiser to every module.
- Bifacial, 70 % ±5 % — the rear face adds generation from reflected and diffuse light, which suits flat roofs, ground mounts and light-coloured surfaces.
- Glass-glass construction — dual glass, 2.0 + 2.0 mm heat-strengthened front and back instead of a polymer backsheet, for better resistance to moisture ingress and micro-cracking.
- Hail tested to 35 mm at 27.2 m/s — relevant for exposed and upland UK sites.
- Long-dated warranty — 30-year linear performance warranty; first-year degradation ≤1 %, ≤0.35 % per year from year 2 to 30.
Electrical characteristics (STC)
| Rated power (Pmax) | 645 W |
| Module efficiency | 23.9 % |
| Open-circuit voltage (Voc) | 53.90 V |
| Voltage at maximum power (Vmp) | 45.20 V |
| Short-circuit current (Isc) | 15.00 A |
| Current at maximum power (Imp) | 14.27 A |
| Power tolerance | 0 to +3 % |
| Maximum system voltage | DC 1500 V |
| Maximum series fuse rating | 30 A |
STC: AM1.5, 1,000 W/m², 25 °C cell temperature.
Mechanical specification
| Cell technology | N-Type ABC (All Back Contact) |
| Number of cells | 144 (6 × 24) |
| Glass | Dual glass, 2.0 + 2.0 mm heat-strengthened |
| Frame | Anodised aluminium |
| Dimensions (H × W × D) | 2,382 × 1,134 × 30 mm |
| Weight | 33.5 kg ±3% |
| Junction box | IP68, 3 bypass diodes |
| Connector | MC4 compatible / MC4-EVO2 |
| Cable | 4 mm² (IEC), +350 mm / −280 mm or ±1,400 mm |
Temperature and load ratings
| Temperature coefficient of Pmax | −0.26 %/°C |
| Temperature coefficient of Voc | −0.22 %/°C |
| Temperature coefficient of Isc | +0.05 %/°C |
| Operating temperature | −40 °C to +85 °C |
| Maximum static load | 5,400 Pa front / 2,400 Pa back |
| Hail test | 35 mm hail at 27.2 m/s |
| Protection class | Class II |
| Fire rating | IEC Class C |
Warranty and certification
30-year linear performance warranty; first-year degradation ≤1 %, ≤0.35 % per year from year 2 to 30.
Array sizing
Each panel covers 2.70 m². A 4 kWp array needs 6 of them (3.87 kWp over about 16 m²). A 6 kWp array needs 9 of them (5.80 kWp over about 24 m²). At 33.5 kg each they are a two-person lift.
About AIKO
AIKO Solar builds every module in its range on ABC (All Back Contact) cells, a structure it developed to move the cell's contacts out of the light path entirely. The design has taken an Intersolar Award and a Red Dot design award, and it is what puts AIKO modules at the top of the mainstream efficiency tables.
Videos
- AIKO ABC Core Technologies
- ABC Module Test - Partial Shading Optimisation Function
- ABC Module Test - High Temperature Restriction Test
- AIKO Fabrik
Datasheets, installation manuals and warranty documents for the AIKO Stellar 1N+ 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.
