Solar plate Tongwei 455W N-TYPE frame black twmnh-48HD455

Benefits of solar plate Tongwei 455W Twmnh-48HD455

Within the TWMNH range of 445 to 465 W, the model of 455 W it occupies the intermediate point: same format of 1762 x 1134 mm that their brothers of greater power, with a relationship between watt price and specially balanced performance for domestic facilities 3 to 7 kWp.

N-TNC technology with real performance in warm climates

Cells TNC (monocrystals type N) they have a lower heat sensitivity than the T-type cells that dominated the market until recently. The temperature coefficient of -0.28%/°C of the twmnh means that, for each grade that rises the cell above 25 ° C, the panel only loses a 0.28% of its power. On a tile cover in the midst of July, that difference of few hundredths accumulates day after day and it shows in annual production.

The architecture of half cell divide each cell into two halves, which reduces the current circulating for each internal chain and, with it resistive losses and the hot spots. The 3 bypass diodes of the connection box IP68 they also allow that the module continues to partially producing when an area is shaded by a chimney or an antenna.

2 Mm glass-glass construction: durability against time passage

Unlike conventional panels with polymeric rear sheet, the TWMNH-48HD455 encapsulates the cells between two semi-finished glass of 2.0 mm, with antireflective coating (AR) on the front face to capture more light. This design limits moisture entrance, avoids flexing microfuses and explains the Tongwei warranty curve:

• Maximum loss of 1% during the first year (99.0% of guaranteed power.)
• Linear degradation no more than 0.4% per year in the following years.
• 89.4% of power when fulfilling 25 years and 87.4% when you reach the 30 years.

The resistance of the module is endorsed by trials of snow load of 5400 pa, , wind load of 2400 pa and the certifications IEC 61701 (corrosion by salina fog,), IEC 62716 (ammonia) e IEC 60068-2-68 (sand.)

A tier 1 manufacturer behind the warranty

Tongwei (TW Solar) it is classified as manufacturer Tier 1 by Bloombergnef and has a low certified management system ISO 9001, ISO 14001, ISO 45001, ISO 50001 and IEC 62941, the specific quality standard for the manufacture of photovoltaic modules. A 30-year warranty only has value if the manufacturer still exists to back up, and this is one of the criteria that we apply in Tienda Solar when selecting the solar panels from our catalog.

Installation of the Tongwei 455W panel on residential roof

Weight and dimensions

With 23.7 kg and 1762 x 1134 x 30 mm, each module occupies something less than 2 m² and suppose an approximate load of 11.9 kg / m² on the cover, not counting the structure. The framework of 30 mm it is compatible with the standard staples of the market, so you can mount it with any of our structures for solar panels coplanares, on tile, sheet or flat cover.

Wiring and connection

The connection box incorporates 4.0 mm² cables with a length of 1200 mm by pole, sufficient to connect adjacent modules in vertical or horizontal orientation without leggnings. The maximum system voltage of 1500 V DC and the maximum Fuse Series 30 A they offer a survey margin in residential and commercial facilities.

Orientation example of String configuration

Take VOC 36.10 V and the vOC coefficient of -0.24%/°C, to -10 ° C the tension in open circuit of each module would reach some 39.1 V. With a inverter of 600 V DC maximum input voltage could theoretically connect up 15 modules by string. It is an approximate calculation: the final design should be validated with the MPPT window of the inverter and the minimum temperature recorded in the area.

Inverters recommended storage

For self-consumption installations with surpluses, the most usual thing is to combine this panel with inverters hybrid let them allow lithium batteries now or in the future. If you do not need storage, a inverter networking it is the most economical solution. In both cases, check that the MPPT entry admits at least 16 A short circuit.

Detailed technical characteristics

Electrical data under STC conditions

• Maximum power (PMAX:) 455 W
• Tension in open circuit (VOC:) 36.10 V
• Short circuit current (ISC:) 15.89
• Tension at the maximum power point (VMP:) 30.44 V
• Current at the point of maximum power (imp:) 14.95
• Efficiency of the module: 22.8%
• Power tolerance: 0 to +3%
• STC measurement conditions: 1000 W / m², , 25 ° C, , AM 1.5 (measuring tolerance ± 3%)

Thermal behavior

• PMAX temperature coefficient: -0.28%/°C
• VOC temperature coefficient: -0.24%/°C
• ISC Temperature Coefficient: +0.046%/°C
• Range of operating temperature: -40 ° C to +70 ° C

Limits of the system

• Maximum system tension: 1500 V DC
• Maximum fuse in series: 30 A

Mechanical construction

• Cell technology: TNC, monocrystalline type N
• Configuration: 96 average cells (6 x 16)
• Dimensions: 1762 x 1134 x 30 mm
• Weight: 23.7 kg
• Front glass: 2.0 mm semi-working with antireflective layer
• Rear glass: 2.0 mm semi-polished
• Setting: black anodized aluminum
• Connection box: IP68 with 3 diodes
• Cable: 4.0 mm², length +1200 mm / -1200 mm (customizable)
• Wind / snow mechanical load: 2400 PA / 5400 PA

Logistics

• Modules per pallet: 36 units
• Container modules 40 'HC: 936 units

Warranty

• Guarantee of materials: 15 years
• Linear power guarantee: 30 years
• First year degradation: maximum 1%
• Subsequent annual degradation: maximum 0.4%
• Minimum power year 25 / year 30: 89.4% / 87.4%

Regulations and certifications

• Product tests: IEC 61215 (2021), , IEC 61730 (2023), , IEC 62804 (PID), , IEC 61701, , IEC 62716, , IEC 60068-2-68
• Quality management: ISO 9001, , ISO 14001, , ISO 45001, , ISO 50001, , IEC 62941
• Market certifications: EC, , CQC, , TÜV NORD, , SAM, , KS, , INMETRO, , JPEA, , CEC, , CSI

Frequently Asked Questions (FAQ)

1. What is the difference between the Tongwei Twmnh of 455 W and the 465 W?

Both share dimensions (1762 x 1134 x 30 mm), , weight (23.7 kg), construction and guarantees. The 455 W model offers 10 W Less per module and an efficiency of 22.8% in front of 23.3% from 465 W. It is a good option when the cover space is not the limiting factor and seeks to optimize the cost per watt installed.

2. How much power can I install with these panels?

As a reference, 6 modules added 2,73 kWp, , 10 modules reach 4,55 kWp and 12 modules come to 5,46 kWp. If you prefer not to calculate each component separately, in our section solar kits you will find complete solutions already sized.

3. Can I connect this panel to a microinverter?

Yes, as long as the microinverter admit a input current of at least 15 A (imp) and one ISC 15.89 A, in addition to an input power according to the 455 W of the module. Check the specifications in our category microinverters before choosing the model.

4. Do you support extreme temperatures?

The panel is designed to work between -40 ° C and +70 ° C, which covers without problems any location of the Iberian Peninsula, from mountain areas to the interior of Andalusia in summer. Your temperature coefficient of -0.28%/°C limit losses on the hottest days.

5. Why is the double glass better than the rear sheet?

The rear glass is not degraded with ultraviolet radiation nor cracks with changes in temperature, unlike some polymeric backsheets. This reduces the entry of humidity and long-term degradation, and is what allows Tongwei to offer a guarantee of 87.4% power to 30 years.

6. Where can I learn more about how to design my installation?

In the Blog Tienda Solar we publish purchase guides, comparatives of technologies, dimensioning tutorials and technical articles developed by experts in photovoltaic energy, both for professional installers and for individuals.