Shutten 645W Solar Panel STM-645/132-R3S

Shutten 645W Solar Panel STM-645/132-R3S | Smart Enterprise

The Shutten 645W solar panel is a photovoltaic module designed to convert sunlight into electrical energy. With a stated maximum power output of 645 watts and a module efficiency of 23.1%, this panel is an option for customers evaluating solar modules for residential, commercial, and other appropriately designed solar power installations.

Identified by model number STM-645/132-R3S, the Shutten 645W Solar Panel has specified electrical characteristics, including an open-circuit voltage of 49.90V, a maximum power voltage of 41.52V, a short-circuit current of 16.40A, and a maximum power current of 15.54A. These values help solar installers and system designers assess the panel’s electrical requirements when planning a photovoltaic installation.

The module measures 2382 × 1134 × 30 mm and weighs 33.8 kg. Its stated maximum system voltage is DC 1500V, and its power tolerance is ±3%. These technical details are important when evaluating physical installation requirements, system configuration, and electrical compatibility.

Whether you are comparing solar panels for a new installation or assessing modules for an existing project, it is important to review the complete specifications alongside the requirements of your inverter, mounting system, charge controller, and other relevant equipment. The right panel depends on the design of the complete solar system, not simply its rated wattage.

Key Features of the Shutten 645W Solar Panel

• 645W maximum power: Provides the manufacturer’s stated maximum power rating for comparing photovoltaic modules.
• 23.1% module efficiency: Identifies the stated efficiency of the panel under the applicable rating conditions.
• ±3% power tolerance: Specifies the stated tolerance around the panel’s rated power.
• 49.90V open-circuit voltage (Voc): Indicates the specified voltage when the panel’s electrical circuit is open.
• 41.52V maximum power voltage (Vmp): Identifies the voltage at the panel’s maximum power operating point.
• 16.40A short-circuit current (Isc): Specifies the current under short-circuit test conditions.
• 15.54A maximum power current (Imp): Identifies the current at the maximum power operating point.
• DC 1500V maximum system voltage: Provides the stated upper system-voltage rating, which must be respected when designing the solar installation.
• 2382 × 1134 × 30 mm dimensions: Provides the physical measurements needed for installation planning.
• 33.8 kg weight: Helps installers assess handling, transport, and mounting requirements.

These specifications give buyers and solar professionals a practical starting point for evaluating the STM-645/132-R3S. Actual system performance depends on operating conditions, installation design, and the characteristics of the other equipment in the solar installation.

Product Specifications

• Brand: Shutten
• Product Type: Solar panel
• Model Number: STM-645/132-R3S
• Maximum Power: 645W
• Power Tolerance: ±3%
• Open-Circuit Voltage (Voc): 49.90V
• Maximum Power Voltage (Vmp): 41.52V
• Short-Circuit Current (Isc): 16.40A
• Maximum Power Current (Imp): 15.54A
• Module Efficiency: 23.1%
• Dimensions: 2382 × 1134 × 30 mm
• Weight: 33.8 kg
• Maximum System Voltage: DC 1500V

Understanding the 645W Power Rating

The Shutten solar panel has a stated maximum power rating of 645 watts. Wattage describes the rate of electrical power the module can produce under its applicable rated test conditions.

The 645W rating is useful when comparing panels and planning a solar array. However, it does not mean the panel will continuously generate 645 watts throughout the day. Actual output varies with sunlight intensity, module temperature, orientation, shading, and other operating conditions.

The panel’s power tolerance is specified as ±3%. This indicates the stated allowable variation around its rated power. The tolerance should be interpreted according to the manufacturer’s rating documentation and applicable test conditions.

When estimating the total capacity of a solar installation, designers must consider the number of panels, their electrical configuration, inverter capacity, site conditions, and expected energy consumption. Rated panel wattage alone does not establish the total energy a system will produce over a day or month.

Understanding Module Efficiency of 23.1%

The Shutten 645W solar panel has a stated module efficiency of 23.1%. Module efficiency expresses the proportion of incident solar energy converted into electrical power under specified test conditions.

Efficiency is useful when comparing panels because it relates power output to the area occupied by the module. Nevertheless, efficiency should be considered alongside rated wattage, dimensions, installation constraints, and the electrical requirements of the planned system.

The supplied specifications do not identify the panel’s cell technology, degradation rate, temperature coefficient, or long-term performance guarantees. These details should be confirmed with the manufacturer or supplier if they are important to the project.

Understanding the Electrical Specifications

The electrical ratings of the STM-645/132-R3S help qualified installers determine how the module may fit into a photovoltaic system.

Open-circuit voltage (Voc) is the voltage measured when no load is connected to the panel. Maximum power voltage (Vmp) is the voltage at which the panel operates at its rated maximum power point under the relevant test conditions.

Similarly, short-circuit current (Isc) is the current measured under short-circuit conditions, while maximum power current (Imp) is the current at the rated maximum power operating point.

These values serve different purposes in system design. Voc is particularly important when calculating the maximum voltage of panels connected in series, including the effect of low temperatures where relevant. Vmp, Imp, and Isc are also important when assessing inverter, controller, wiring, and protection-device requirements.

The stated maximum system voltage of DC 1500V is a system-design limit, not a statement that the panel itself continuously produces 1500V. The permissible series-string configuration must be calculated using the manufacturer’s specifications and the applicable electrical installation requirements.

Dimensions, Weight, and Installation Planning

Measuring 2382 × 1134 × 30 mm, the Shutten 645W solar panel requires sufficient space for its physical dimensions and the mounting arrangement specified for the product.

Its stated weight is 33.8 kg per panel. This is a relevant consideration when planning transportation, lifting, handling, and structural support. Installers should assess the total weight of the proposed array and confirm that the roof, ground-mounted structure, and mounting components are suitable for the intended installation.

The supplied information does not specify the panel’s frame material, mounting-hole positions, connector type, cable length, wind-load rating, or permitted clamping zones. Confirm these details in the manufacturer’s installation documentation before installing the module.

Applications and Buying Considerations

The Shutten 645W solar panel may be considered for photovoltaic projects where its electrical ratings, physical dimensions, and system-voltage specification suit the installation design.

Potential applications include:

• Residential solar installations: For homeowners assessing photovoltaic modules for a suitably designed home solar system.
• Commercial solar projects: For businesses and installers evaluating panel specifications for commercial photovoltaic arrays.
• Solar array expansion: For qualified system designers assessing whether the module is compatible with an existing installation.
• New solar projects: For solar contractors comparing rated power, efficiency, electrical values, and panel dimensions during equipment selection.

These are potential application categories, not guarantees of compatibility with every installation. Before purchasing, verify the module’s connector type, inverter or controller requirements, mounting specifications, and relevant electrical protections.

Care, Handling, and Maintenance

Detailed product-specific maintenance instructions have not been supplied for the STM-645/132-R3S. Follow the manufacturer’s installation and maintenance documentation for cleaning, inspection, handling, and servicing.

Important considerations include:

• Confirm the manufacturer’s approved handling and lifting procedures.
• Ensure the mounting structure is suitable for the module’s dimensions and weight.
• Use qualified solar installation personnel for electrical connections and commissioning.
• Follow the manufacturer’s instructions for cleaning and inspection.
• Observe the specified voltage and current limits when configuring the array.
• Follow applicable electrical safety requirements when installing, inspecting, or servicing the system.

Solar modules generate electricity when exposed to light. Installation and maintenance should therefore be carried out using appropriate electrical safety procedures. Do not attempt to disconnect or service energized photovoltaic connections without the necessary qualifications and precautions.

Frequently Asked Questions

1. What is the rated power of the Shutten solar panel?

The stated maximum power is 645 watts.

2. What is the model number?

The model number is STM-645/132-R3S.

3. What is the module efficiency?

The stated module efficiency is 23.1% under the applicable rating conditions.

4. What are the dimensions of this solar panel?

The specified dimensions are 2382 × 1134 × 30 mm.

5. How much does the panel weigh?

The stated weight is 33.8 kg per panel.

6. What is the open-circuit voltage?

The specified open-circuit voltage (Voc) is 49.90V.

7. What are the maximum power voltage and current?

The maximum power voltage (Vmp) is 41.52V, and the maximum power current (Imp) is 15.54A.

8. What is the short-circuit current?

The specified short-circuit current (Isc) is 16.40A.

9. What is the maximum system voltage?

The stated maximum system voltage is DC 1500V. The complete array must be designed so that its calculated operating conditions remain within all applicable equipment and system limits.

10. Is the Shutten 645W solar panel compatible with my inverter?

Compatibility cannot be confirmed without the inverter’s specifications and the proposed array configuration. Check the inverter’s permitted input voltage, current, power limits, and other applicable requirements with a qualified solar installer.

11. How much electricity can one panel generate per day?

Daily energy production cannot be determined from the rated wattage alone. It depends on the site’s solar resource, shading, orientation, temperature, system losses, and operating conditions.

Choose the Shutten 645W Solar Panel for Your Solar Project

The Shutten 645W Solar Panel STM-645/132-R3S offers a defined set of photovoltaic specifications, including 645W maximum power, 23.1% module efficiency, ±3% power tolerance, and a DC 1500V maximum system-voltage rating. Its stated electrical characteristics, dimensions, and weight help customers and installers assess its suitability for a proposed solar installation.

Before purchasing, compare these specifications with your project’s energy requirements, inverter or controller ratings, mounting arrangements, and applicable electrical standards. Confirm any additional technical details required for installation with the supplier or manufacturer.

Explore solar products and other equipment through the Smart Enterprise online shop and select the products that match your project’s verified technical requirements.