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Seraphim SRP-635-BTZ-HV
Seraphim Brand review

SRP-635-BTZ-HV

635 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 1,861 of 14,005
Compare panels Datasheet PDF
Power (Wp)
635
Strong · top 16%
Efficiency (%)
22.72
Typical · median 22.80%
Density (Wp/m²)
227.2
Typical · median 227.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
29.5
Strong · 3.2 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

Seraphim Sable 625-640W is a series of modules designed to maximize energy yield from every square meter - particularly in situations where high power output from a single panel and stable operation in demanding conditions are crucial. The use of N-type cells in TOPCon technology results in improved resistance to typical degradation losses and more predictable energy production over the long term. The glass-glass construction also deserves attention, as it increases the durability of the laminate and helps to minimize the risk of microcracks during transport and installation.

The series utilizes a half-cell design and a multi-busbar architecture, which promotes even module performance and supports the reduction of losses associated with partial shading. It is a good choice for large ground-mounted and commercial rooftop installations, where lower BOS costs, high reliability, and easier string design are key considerations. Compared to the competition, Sable stands out for its combination of modern N-type technology and a robust, double-glass construction - without compromising on practical performance.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.72% 22.80% Typical 3,245
Power density 227.2 227.7 Typical 3,252
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 46.5 53.1 Strong · top 9% 1,173
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 0 caution
Best for

Commercial, utility-scale and shaded-installations.

Strengths
46.5 kg per kWp

Top 9% of the TOPCon 600-650 W segment, against a median of 53.1. Ranked 1,173rd in the whole database.

Notes from the database
  • At 22.7% efficiency, this panel is on par with typical TOPCon 600-650W modules
  • At 227.2 W/m² power density, roof space requirements are typical for TOPCon 600-650W panels
  • At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • 29.5 kg weight - 3.2 kg lighter than TOPCon 600-650W median (32.7 kg), reducing installation effort
  • Ranked #3245 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 635 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.72 % Typical Segment median 22.80%
Vmpp · Impp 47.31 V · 13.43 A Operating point at max power
Voc · Isc 56.64 V · 14.13 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×35 mm · 2.80 m² of roof
Weight 29.5 kg Strong Strong · 3.2 kg below median
Cells 156 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 555 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Seraphim in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 635 Wp appear here. The rest cover the whole series.

Additional Value from Linear Warranty Additional Value from Linear Warranty Whole series I-V Curve I-V Curve Whole series I-V Curve (varying cell temperature) I-V Curve (varying cell temperature) Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Seraphim SRP-635-BTZ-HV 635 W 22.72% -0.290 29.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +2.5 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +45 W, cooler, +2.5 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +40 W, cooler, +2.3 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +2.3 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +35 W, cooler, +2.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +35 W, cooler, +2.1 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +2.1 pp
SRP-580-BMZ-HV 580 W 20.75% -0.340 29.5 kg -55 W, hotter, -2.0 pp
SRP-585-BMZ-BG 585 W 20.93% -0.340 34.6 kg Hotter, heavier, -1.8 pp
SRP-590-BMZ-BG 590 W 21.11% -0.340 34.6 kg Hotter, heavier, -1.6 pp
SRP-595-BMZ-HV 595 W 21.29% -0.340 29.5 kg Hotter, -1.4 pp, -5 yr warranty
SRP-600-BMZ-HV 600 W 21.46% -0.340 29.5 kg Hotter, -1.3 pp, -5 yr warranty
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +65 W, heavier, +2.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +60 W, heavier, +2.2 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +35 W, heavier, +2.1 pp

Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1813 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What product warranty and power output warranty does the Seraphim Sable 625-640W series offer?
Seraphim provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This guarantees predictable energy production with minimal power degradation over three decades of operation — one of the stronger warranty standards available in this panel class.
Do N-type TOPCon cells in the Sable series actually deliver better yields than conventional PERC?
Yes. TOPCon N-type technology offers a lower temperature coefficient and higher conversion efficiency compared to PERC cells. On hot summer days and under diffuse light conditions, the panel loses less power than older designs. Over a multi-year energy balance, this translates into more kilowatt-hours from the same surface area and more predictable system output.
What types of installations is the Seraphim Sable 625-640W series best suited for?
The Sable series is primarily designed for large utility-scale ground-mounted systems and commercial rooftop installations. With up to 640 Wp per module, fewer panels are required for the same installed capacity, directly lowering BoS costs — fewer mounting structures, less cabling, and simpler string design. On residential rooftops, it makes sense where roof area is large and maximum power density per module matters.
What does glass-glass construction mean in Seraphim Sable panels and why does it matter when choosing a module?
Glass-glass construction replaces the conventional polymer backsheet with a second glass layer. This significantly increases mechanical durability, reduces the risk of microcracks during transport and installation, and provides superior long-term protection against moisture ingress and UV degradation. Over a 30-year operational horizon, laminate integrity directly affects how well the module holds its guaranteed power output.
How do half-cut cells and multi-busbar architecture in Sable panels handle partial shading?
Half-cut cell design reduces resistive losses and localized thermal stress within the module, while the multi-busbar architecture enables more uniform current collection across each cell's surface. In practice, shading from a chimney, antenna, or tree branch has a smaller impact on the overall string output compared to older conventional modules with fewer busbars — a real advantage in real-world installation conditions.
Is Seraphim a reliable manufacturer for a long-term investment in 640W panels?
Seraphim holds Tier 1 status according to Bloomberg NEF, placing it among the most bankable solar module manufacturers globally. The company supplies panels to large commercial and utility-scale projects across multiple countries. The 15-year product warranty and 30-year power output warranty further confirm that the manufacturer stands behind its modules over the full operational lifecycle of a PV system.
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