The DMEGC DM510G12RT-B54HBW and DM515G12RT-B54HBW are 510 W and 515 W N-type mono-crystalline solar modules from DMEGC's Infinity RT range, built for installers who want high per-panel wattage without compromising on roof aesthetics. Both share the same platform: a 108 half-cut cell layout (108, 6×18), bifacial dual-glass construction, and a clean black frame / white backsheet finish, and differ only in rated output.
With module efficiencies of 22.7–23.0%, a 30-year linear power warranty, and rear-side energy gain from the bifacial design, these modules deliver more usable energy per square metre of roof space over a long service life — suited to both residential rooftops and larger commercial string arrays.
510–515 W
Nominal power range
22.7–23.0%
Module efficiency
108
Half-cut cells (6×18)
30 Yr
Linear power warranty
Bifacial
Dual-glass module
Informational: Rear-side gain figures (BNPI) shown in the variant table below assume typical ground-reflective conditions; actual bifacial gain on site depends on mounting height, tilt, and ground surface albedo.
N-Type Mono-Crystalline Cells
Lower first-year and annual degradation than conventional P-type panels — DMEGC rates this platform at ≤1% first-year and ≤0.4% annual degradation over 30 years.
108 Half-Cut Cell Design
108 half-cut cells in a 6×18 layout to reduce resistive losses and improve tolerance to partial shading.
Bifacial Dual-Glass Build
2 mm heat-strengthened glass on both front and rear enables rear-side power generation for additional energy yield.
Anti-Reflective Coating
Front glass coating improves light absorption across a wider range of incidence angles for better low-light performance.
High Mechanical Load Rating
Rated to 5,400 Pa snow load and 2,400 Pa wind load (design load), suiting exposed and high-altitude installations.
30-Year Linear Power Warranty
Guaranteed output of 87.4% of nominal power at year 30, backed by DMEGC's extended performance warranty.
Variant Comparison — Electrical Specifications (STC)
Specification
DM510G12RT-B54HBW
DM515G12RT-B54HBW
Maximum Power (Pmax)
510 W
515 W
Maximum Power Voltage (Vmp)
34.37 V
34.61 V
Maximum Power Current (Imp)
14.84 A
14.88 A
Open-Circuit Voltage (Voc)
40.62 V
40.75 V
Short-Circuit Current (Isc)
15.78 A
15.83 A
Module Efficiency (STC)
22.7%
23.0%
Power Output Sorting Tolerance
0 ~ +3%
0 ~ +3%
Variant Comparison — Bifacial Output, Rear-Side Power Gain (BNPI)
Specification
DM510G12RT-B54HBW
DM515G12RT-B54HBW
Maximum Power (Pmax) @ BNPI
564 W
570 W
Maximum Power Voltage (Vmp) @ BNPI
34.41 V
34.65 V
Maximum Power Current (Imp) @ BNPI
16.38 A
16.42 A
Open-Circuit Voltage (Voc) @ BNPI
40.62 V
40.75 V
Short-Circuit Current (Isc) @ BNPI
17.36 A
17.42 A
Temperature Characteristics (Shared Platform)
Nominal Module Operating Temp (NMOT)
42 ± 2°C
Temperature Coefficient of Pmax
-0.29 %/°C
Temperature Coefficient of Voc
-0.25 %/°C
Temperature Coefficient of Isc
+0.048 %/°C
Operating Temperature Range (T98)
-40°C to +70°C
Mechanical & Construction (Shared Platform)
Cell Type
N-type mono-crystalline, 108 half-cut cells (6×18)
Dimensions (L × W × H)
1,977 × 1,134 × 30 mm
Front Cover
2 mm heat-strengthened glass, anti-reflective coating
Rear Cover
2 mm heat-strengthened glass
Frame / Backsheet
Black frame / white backsheet appearance
Junction Box
3 diodes, IP68 rated (IEC 62790)
Output Cables
4 mm² — Portrait: 300 mm (+) / 200 mm (-); Landscape: 1,200 mm (+/-)
Connector Type
Stäubli PV-KST4/KBT4-EVO2 series, or Sunter PV-ZH202B
Protection Class
Class II
System & Certification (Shared Platform)
Maximum System Voltage
1,500 V DC (IEC)
Overcurrent Protection Rating
30 A
Max. Design Load, Push/Pull
+3,600 Pa / -2,400 Pa
Max. Test Load, Push/Pull
+5,400 Pa / -3,600 Pa
Product Certification
IEC 61215, IEC 61730
Product Warranty
25 years
Linear Power Warranty
30 years — 87.4% of nominal power at year 30
Frequently Asked Questions
What's the difference between the 510W and 515W versions?
Both share the identical platform — same dimensions, cell count, warranty, and construction. They differ only in power binning: the 515W variant is sorted from a slightly higher-efficiency production batch (23.0% vs 22.7%), giving marginally higher Vmp, Voc and Isc figures.
What does "N-type" mean and why does it matter?
N-type cells use a different base wafer doping than standard P-type panels, which gives them lower degradation rates over time — DMEGC specifies ≤1% in the first year and ≤0.4% annually thereafter, supporting the 30-year linear power warranty.
How much extra energy does the bifacial design generate?
The datasheet's BNPI rating shows output rising to 564 W (510W variant) or 570 W (515W variant) under typical rear-illumination conditions (135 W/m² rear irradiance). Real-world gain depends on mounting height, tilt angle, and how reflective the surface beneath the array is.
Is this module suitable for high snow-load or windy sites?
Yes. Both variants carry a design load rating of 5,400 Pa (snow) and 2,400 Pa (wind), which is above typical UK requirements, though the specific mounting method affects the final rating — always check the installation manual.
What connector type does this module use?
Both variants are fitted with Stäubli PV-KST4/KBT4-EVO2 series connectors (or Sunter PV-ZH202B equivalents) on 4 mm² output cables, compatible with most standard UK inverter and cable systems.
What warranty coverage applies to these panels?
DMEGC provides a 25-year product warranty and a 30-year linear power warranty, guaranteeing at least 87.4% of nominal output at year 30 — performance warranty terms apply to front-side (STC) output.
