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Model 435 | Monocrystalline PERC | 320 Full Cells | Monofacial | 1500V System Voltage
The Topco Solar 435 435W Monocrystalline Solar Panel delivers high power density in a compact footprint. This monofacial module is designed for residential and commercial arrays where reliable output and long service life are essential. With a maximum power rating of 435 watts and panel efficiency up to 20.9 percent, strong performance is maintained even in constrained roof spaces. The power range of 420 to 445 watts allows flexible array design across diverse projects. A robust 15 year product warranty and 25 year power warranty support long term energy production.
Engineered with monocrystalline PERC cells, this panel is optimized for modern string and central inverters rated up to 1500 volts. The operational temperature range from minus 40 to plus 85 degrees Celsius supports installation in challenging climates. A durable anodized aluminum frame, tempered solar glass, and IP68 rated junction box help resist moisture, dust, and mechanical stress. Installers can deploy this module for rooftop, ground mount, and small commercial systems while maintaining a clean visual appearance. Buyers receive dependable performance backed by a trusted United States based seller.
High power density for tight roof layouts: The 435 watt rating and efficiency up to 21.4 percent allow more kilowatts on limited roof space. This helps maximize system capacity without expanding array footprint.
Stable long term performance: A total degradation rate of 0.61 percent per year supports 84.8 percent output at year twenty five. Energy yield stays predictable across the full warranty period.
Durable construction for harsh climates: Tempered 3.2 millimeter glass and anodized aluminum framing protect cells against wind, snow, and impact. The IP68 junction box improves resistance to dust and water ingress.
Flexible system design range: A 1500 volt maximum system voltage and 25 amp series fuse rating support long strings. Designers can reduce balance of system costs and simplify wiring layouts.
Trusted seller and straightforward logistics: This module is offered by Topco Solar Inc. in the United States. Local support helps streamline procurement, after sales service, and project scheduling.
This monocrystalline solar panel converts sunlight into usable direct current electricity through high efficiency PERC cells. When light strikes the cell surface, an electric field is created and electrons begin to flow through the internal circuit. The generated current travels through the panel busbars, into the junction box, and out through the factory fitted cables. An external inverter later changes the direct current into alternating current electricity for household or commercial loads. System monitoring then tracks the energy output over time.
The panel is designed to operate safely within a wide temperature window while limiting power losses. Temperature coefficients for power, voltage, and current define how performance shifts during hot or cold days. These values are used by designers to predict energy production in real climate conditions. Over the lifetime of the panel, degradation is controlled by the cell design and encapsulation materials. The long term power warranty ensures defined performance levels after decades of operation.
Solar energy capture and conversion: Monocrystalline cells absorb incoming sunlight across the glass surface and generate electron movement. The rated maximum power point of 435 watts is reached under standard test conditions with optimized irradiance and temperature. During normal operation, the panel works near its voltage at maximum power of 36.2 volts and current of 12.02 amps. An inverter performs maximum power point tracking to keep the panel operating at this sweet spot.
Current flow and system integration: The generated current leaves the panel through the IP68 junction box and 4 square millimeter cables. MC4 compatible connectors allow quick and secure string connections on site. Multiple modules are wired in series and parallel to reach the planned array voltage and current. The 1500 volt rating and 25 amp series fuse limit guide electricians when designing safe string configurations.
Thermal management and reliability: The nominal operating cell temperature of 42.3 degrees Celsius plus or minus two degrees indicates typical conditions in the field. As temperature rises, the power output slightly decreases according to the minus 0.34 percent per degree coefficient. Voltage also declines with heat, while current increases marginally with the positive coefficient for short circuit current. These predictable shifts allow accurate modeling of yearly energy yield for both residential and commercial installations.
| Brand | Topco Solar Inc. |
| Model Number | 435 |
| Cell Technology | Monocrystalline PERC |
| Cell Count and Type | 320 monocrystalline cells |
| Power Range | 420 to 445 Wp |
| Maximum Power (Pmax) STC | 435 Wp |
| Voltage at Maximum Power (Vmpp) STC | 36.2 V |
| Current at Maximum Power (Impp) STC | 12.02 A |
| Open Circuit Voltage (Voc) STC | 43.6 V |
| Short Circuit Current (Isc) STC | 12.79 A |
| Alternate Pmax Rating | 328 Wp with Vmpp 34.5 V and Impp 9.49 A |
| Alternate Voc and Isc | Voc 41.6 V, Isc 10.32 A |
| Panel Efficiency Range | 20.2 to 21.4 percent |
| Nominal Operating Cell Temperature (NOCT) | 42.3 ± 2 °C |
| Operating Temperature Range | -40 °C to +85 °C |
| Temperature Coefficient of Pmax | -0.34 percent per °C |
| Temperature Coefficient of Voc | -0.27 percent per °C |
| Temperature Coefficient of Isc | 0.04 percent per °C |
| Maximum System Voltage | 1500 V |
| Series Fuse Rating | 25 A |
| Module Dimensions (H x W x D) | 1899 x 1096 x 30 mm |
| Weight | 21.8 kg |
| Glass Type and Thickness | 3.2 mm tempered solar glass |
| Frame Type | Anodized aluminium frame |
| Junction Box Protection Class | IP68 rated junction box |
| Junction Box Diodes | 2 bypass diodes |
| Cable Cross Section | 4 mm² |
| Module Type | Monofacial crystalline silicon panel |
Certifications: Standard crystalline silicon module certifications typically apply, including IEC and UL listings where required by local codes. Please confirm the exact certificate set with Topco Solar Inc. before final design approval.
Inverter Compatibility: Compatible with most modern string and central inverters rated up to 1500 Vdc. Suitable for residential, commercial, and small utility projects using MPPT based inverter technology.
Environmental: Designed for outdoor installation with IP68 junction box and robust framing. Operational from -40 °C to +85 °C in diverse climate zones when installed to manufacturer guidelines.
Warranty: 15 year product workmanship warranty and 25 year power warranty with 84.8 percent rated output at the end of the power term. Total degradation rate is limited to approximately 0.61 percent per year under normal operating conditions.
● Available | Contact us for lead time and project specific pricing
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