Вимикач постійного струму VOPV серії NL1

Comprehensive Overview

The VOPV DC Isolator Switch NL1 Series represents the pinnacle of safety and reliability in photovoltaic system protection. Designed specifically for residential and commercial solar installations ranging from 1 to 20 kW, these isolator switches serve as critical safety components that provide complete electrical isolation between solar panels and inverters. With superior performance characteristics and compliance with international safety standards, the NL1 Series stands as an essential component for any solar power installation seeking operational excellence and long-term durability.

Essential Safety Solution for Solar Power Systems

In solar power installations, safety is paramount. The VOPV NL1 Series DC Isolator Switches function as emergency disconnection devices, allowing for the complete isolation of photovoltaic panels from the rest of the system. This isolation capability is crucial during maintenance operations, system upgrades, or emergency situations, effectively preventing electrical accidents and potential equipment damage. With an impressive arcing time of less than 8ms, these isolator switches ensure swift disconnection, significantly reducing the risk of arc flash incidents that can compromise system integrity and operator safety.

Основні сфери застосування

The versatility of the VOPV DC Isolator Switch NL1 Series makes it suitable for a wide range of photovoltaic applications, including:

• Residential rooftop solar installations (1-10kW)
• Commercial solar power systems (10-20kW)
• Small-scale solar farms
• Off-grid solar systems
• Battery storage systems integration
• Solar water pumping systems

Technical Excellence and Robust Design

The NL1 Series DC Isolator Switch is engineered with precision to meet the demanding requirements of photovoltaic applications. The switch body accommodates 4P CB4N or CB8N configurations, providing flexible installation options. With a maximum operational voltage of 1200V DC, these isolator switches are compatible with modern high-voltage solar arrays, ensuring optimal performance and safety across various system configurations.

Premium Features of VOPV NL1 Series Isolator Switches

Enhanced Safety Characteristics

• IP20 Protection Level: Provides reliable protection against ingress of solid objects larger than 12mm, ensuring operational integrity in various installation environments.
• Rapid Arcing Time: At less than 8ms, the swift disconnection capability minimizes arc flash hazards, enhancing overall system safety.
• High Insulation Voltage: Rated at 1200V, ensuring complete electrical isolation between input and output circuits.
• Overvoltage Category II: Designed to withstand temporary overvoltage situations common in photovoltaic systems.
• Rated Impulse Withstand Voltage: 8.0kV protection against voltage surges, safeguarding connected equipment.

Installation and Operation Advantages

• Монтаж на DIN-рейку: Facilitates straightforward installation in standard electrical enclosures and distribution boards.
• Multiple Pole Configurations: Available in 2-pole and 4-pole designs to accommodate single and double string applications.
• Versatile Current Ratings: Choose from 16A, 25A, or 32A options to match your specific system requirements.
• Flexible Voltage Compatibility: Operational across multiple voltage ranges including 300V, 600V, 800V, 1000V, and 1200V DC.
• Non-Polarized Design: No polarity restrictions allow for interchangeable “+” and “-” connections, simplifying installation procedures.

Durability and Longevity

• Superior Mechanical Endurance: Tested to 18,000 operations, ensuring extended service life even in systems with frequent switching requirements.
• Excellent Electrical Durability: Rated for 2,000 electrical operations under load, providing reliable performance throughout the system lifecycle.
• High Short-Circuit Withstand: Capable of handling 1kA for 1 second, protecting the system during fault conditions.
• Quality Component Selection: Manufactured using premium materials specifically chosen for their performance in DC applications.

Технічні характеристики

Варіанти моделі

Електричні характеристики

Durability Characteristics

Вимір

Електропроводка

Міркування щодо встановлення та безпеки

Optimal Installation Practices

For maximum safety and performance, the NL1 Series DC Isolator Switches should be installed according to these guidelines:

• Mount securely on standard 35mm DIN rails within appropriate electrical enclosures
• Ensure adequate ventilation to prevent heat accumulation
• Place in accessible locations to facilitate emergency disconnection
• Protect from direct exposure to environmental elements
• Use appropriate cable sizes matching the current ratings of the chosen isolator model
• Follow local electrical codes and regulations for PV system installations
• Implement regular maintenance checks to ensure continued operational integrity

Конфігурація електропроводки

The VOPV NL1 Series offers flexible connection options with both 2-pole and 4-pole configurations available:

• 2-Pole Configuration (2P): Suitable for single string applications with terminals 1-2 and 3-4 for connecting positive and negative conductors.
• 4-Pole Configuration (4P): Designed for double string setups, providing terminals 1-2, 3-4, 5-6, and 7-8 for comprehensive isolation of multiple strings.

Відповідність та сертифікація

The VOPV DC Isolator Switch NL1 Series is manufactured in strict adherence to international safety standards, ensuring reliable performance and regulatory compliance:

• IEC60947-3: International standard for low-voltage switchgear and control gear
• AS60947.3: Australian standard for low-voltage switchgear and control gear
• DC-PV2, DC-PV1, DC-21B: Utilization categories specifically for photovoltaic applications

Переваги над продуктами-конкурентами

The VOPV NL1 Series DC Isolator Switches offer several distinct advantages that set them apart from competing products in the market:

Покращені функції безпеки

• Faster arcing time (less than 8ms) compared to industry averages of 10-15ms
• Higher maximum voltage rating (1200V DC) than standard isolators (typically limited to 1000V DC)
• Superior impulse withstand voltage of 8.0kV for better surge protection

Improved Durability

• 18,000 mechanical operations exceeds the typical 10,000-15,000 operations of competing products
• 2,000 electrical operations surpasses the common 1,000-1,500 operations of standard isolators
• Higher short-circuit withstand capability ensures better protection during fault conditions

Installation Flexibility

• Non-polarized design eliminates connection errors and simplifies installation
• Multiple current ratings (16A, 25A, 32A) accommodate various system sizes
• Compatible with various voltage levels across different solar array configurations

Applications Across Different Solar System Types

Побутові сонячні установки

For homeowners investing in solar energy, the VOPV16-NL1 and VOPV25-NL1 models provide ideal protection for typical residential systems. These isolator switches ensure safe disconnection during maintenance and emergencies, protecting both the investment and household safety. The compact design and DIN rail mounting capability make them perfect for integration into residential distribution boards.

Commercial Photovoltaic Systems

Commercial solar installations benefit from the higher current capacity of the VOPV32-NL1 model. With multiple strings common in commercial setups, the 4-pole configuration offers comprehensive isolation capabilities. The extended mechanical and electrical durability ensures minimal maintenance requirements and maximum system uptime, critical factors for business operations.

Off-Grid Solar Solutions

In off-grid applications where reliability is paramount, the VOPV NL1 Series provides essential protection between solar arrays, battery banks, and inverters. The non-polarized design is particularly valuable in remote installations where specialized technicians may not be readily available, reducing potential installation errors.

Maintenance and Longevity

The VOPV NL1 Series is designed for minimal maintenance requirements throughout its operational lifespan. However, to ensure optimal performance and safety, we recommend:

• Periodic visual inspections for signs of wear or damage
• Annual testing of isolation functionality
• Checking terminal connections for tightness and signs of overheating
• Verifying the condition of mounting and enclosure
• Documenting all maintenance activities for warranty and compliance purposes

Гарантія та підтримка

At VIOX, we stand behind the quality and reliability of our products. The VOPV DC Isolator Switch NL1 Series comes with comprehensive warranty coverage and technical support:

• 5-year manufacturer’s warranty against defects in materials and workmanship
• Technical consultation for system design and product selection
• Installation guidance and troubleshooting assistance
• Documentation support for regulatory compliance
• Rapid response to warranty claims and product inquiries

Conclusion: The Superior Choice for Photovoltaic System Protection

The VOPV DC Isolator Switch NL1 Series represents the ideal balance of safety, reliability, and performance for photovoltaic applications. With superior electrical characteristics, flexible installation options, and exceptional durability, these isolator switches provide essential protection for solar energy investments. By choosing the NL1 Series for your photovoltaic system, you ensure compliance with international safety standards while benefiting from industry-leading quality and performance.

For more information about the VOPV DC Isolator Switch NL1 Series or to discuss your specific application requirements, contact our technical team today. Our solar energy experts are ready to assist you in selecting the optimal isolator solution for your photovoltaic system, ensuring maximum safety and performance for years to come.