TOMZN 2P DC Circuit Breaker 20A- 12V-1000V Wide RangeDC MCB for PV System (TOMZN TOB7Z-63) Price in Bangladesh
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TOMZN 2P DC 1000V Solar Mini Circuit Breaker (20A) for PV System – TOMZN TOB7Z-63 Series Price in Bangladesh
Ensure the unparalleled safety and reliability of your solar photovoltaic (PV) system with the high-performance TOMZN 2P DC 1000V Solar Mini Circuit Breaker (MCB) from the TOB7Z-63 series. Designed specifically for direct current applications in solar installations, this essential component provides robust protection against overloads and short circuits, safeguarding your valuable solar panels, inverters, and associated wiring. Whether you’re setting up a new solar power plant or upgrading an existing one, the TOMZN DC MCB is a critical investment for long-term operational integrity and safety in Bangladesh.
Why Choose the TOMZN TOB7Z-63 DC MCB for Your Solar System in Bangladesh?
In the demanding environment of solar power generation, reliable circuit protection is non-negotiable. The TOMZN TOB7Z-63 series MCB stands out for its superior design and performance, tailored for DC applications up to 1000V. It offers peace of mind by preventing potential damage to your expensive solar equipment due to electrical faults. Available in common current ratings like 10A, 20A, and 32A, it caters to a wide range of solar system configurations, making it a versatile choice for residential, commercial, and industrial PV projects across Bangladesh. With its robust construction and adherence to international safety standards, the TOMZN DC MCB is an ideal solution for anyone seeking reliable solar system protection in Bangladesh.
Key Features of the TOMZN TOB7Z-63 DC MCB
- High DC Voltage Rating (1000V): Specifically designed to handle the high DC voltages common in modern solar PV arrays, ensuring safe and effective operation.
- Dual Pole Protection (2P): Offers comprehensive protection by simultaneously disconnecting both positive and negative DC lines in case of a fault, enhancing system safety.
- Multiple Current Options: Available in various amp ratings including 10A, 20A, and 32A, allowing precise matching to your PV string current requirements. The TOB7Z-63 series also supports up to 63A for larger configurations.
- Overload Protection: Equipped with a thermal-magnetic tripping mechanism that effectively protects against sustained overcurrents, preventing overheating and potential damage.
- Short-Circuit Protection: Features a rapid magnetic trip unit that quickly disconnects the circuit in the event of a short circuit, minimizing arc flash risks and equipment damage.
- High Breaking Capacity (6kA): Capable of safely interrupting high fault currents up to 6000 amps, providing superior protection under severe fault conditions.
- DIN Rail Mounting: Designed for easy and secure installation on a standard 35mm DIN rail, making it compatible with most electrical distribution boards and enclosures.
- Durable Construction: Manufactured with high-quality, flame-retardant materials for enhanced longevity, reliability, and safety in various environmental conditions.
- Visual Indication: Clear ON/OFF indication for easy status monitoring and troubleshooting.
- IEC/EN Standard Compliance: Meets international standards such as IEC/EN 60947-2, ensuring high quality, performance, and safety for global applications, including the Bangladesh market.
Benefits of Using TOMZN DC MCB in Your Solar System
- Enhanced Safety: Provides critical protection against electrical faults, minimizing the risk of fire, equipment damage, and personal injury in your solar installation.
- Extended Equipment Lifespan: By preventing overcurrents and short circuits, the MCB protects your solar panels, charge controllers, and inverters from premature wear and failure, extending their operational life.
- System Reliability: Ensures consistent and uninterrupted power generation by quickly isolating faulty sections without affecting the entire system.
- Compliance and Certification: Adherence to international standards like IEC/EN 60947-2 signifies a product that meets rigorous safety and performance criteria, giving you confidence in its quality.
- Easy Installation and Maintenance: The DIN rail mountable design allows for quick and straightforward installation, while its robust build ensures minimal maintenance.
- Cost-Effective Protection: A relatively small investment in a high-quality DC MCB can save you significant costs associated with repairing or replacing damaged solar equipment.
Installation and Usage Instructions
Installing a DC MCB correctly is crucial for the safety and efficiency of your solar PV system. Always ensure that installation is performed by a qualified electrician or solar technician who is familiar with DC electrical systems and safety protocols.
- Safety First: Before starting any electrical work, always disconnect all power sources to the solar system, including both AC and DC sides. Use appropriate personal protective equipment (PPE).
- Mounting: Mount the TOMZN TOB7Z-63 MCB securely onto a 35mm DIN rail within a suitable enclosure (e.g., a DC combiner box or distribution board) that offers adequate protection against environmental elements.
- Wiring: Connect the incoming DC positive and negative cables from your solar array (or combiner box) to the top terminals of the 2P MCB. Connect the outgoing DC positive and negative cables (to the inverter or charge controller) to the bottom terminals. Ensure correct polarity and tight connections (torque to specifications, typically 2.5 Nm).
- Cable Sizing: Use DC-rated cables of appropriate gauge for your current and voltage to prevent overheating and voltage drop.
- Testing: After installation, perform continuity and insulation resistance tests before re-energizing the system.
- Operation: The MCB is designed for manual operation. “ON” position indicates the circuit is closed (power flowing), and “OFF” indicates the circuit is open (power interrupted). In case of an overload or short circuit, the MCB will automatically trip to the “OFF” position.
Applications
The TOMZN 2P DC 1000V Solar Mini Circuit Breaker is versatile and suitable for a wide range of solar PV applications:
DC Combiner Boxes: Often used as the primary protective device for individual PV strings within a combiner box.
Residential Rooftop Solar Systems: Essential for protecting home solar installations from electrical faults.
Commercial and Industrial Solar Projects: Scalable protection for larger PV arrays on factories, offices, and warehouses.
Off-Grid Solar Systems: Critical for battery-based systems to ensure reliable power in remote locations.
On-Grid (Grid-Tied) Solar Systems: Provides necessary protection before the inverter interface.
Solar Street Lights and Water Pumping Systems: Ideal for standalone DC applications requiring robust circuit protection.
