VICTRON ENERGY Victron Energy MEGA Fuse 500A High-Current DC Over-Current Protection | Rated up to 80V The Victron Energy MEGA Fuse 500A (SKU: VMG500-80) is a robust DC fuse designed to provide essential over-current protection for high-current electrical systems. Rated at 500 amps and suitable for systems up to 80V DC, this fuse is a critical component for safeguarding valuable equipment in various renewable energy, automotive, and marine applications. Like all fuses, the MEGA Fuse is engineered to interrupt the circuit rapidly in the event of excessive current caused by short circuits, equipment faults, or overloads. This proactive protection helps prevent costly damage to batteries, inverters, charge controllers, and wiring, significantly reducing the risk of system failure or fire. ESSENTIAL PROTECTION: Safeguards high-current DC circuits from overloads and short circuits. Key Features ▶ Reliable Over-Current Protection — safeguards valuable DC components from damage. ▶ High 500A Rating — suitable for demanding high-power DC applications. ▶ 80V DC Compatibility — ideal for 12V, 24V, 48V, and higher voltage DC systems. ▶ Robust Victron Quality — manufactured to Victron Energy's high standards for dependable performance. ▶ Compact & Easy Integration — designed for straightforward installation in compatible MEGA fuse holders. Technical Specifications Parameter Value Manufacturer Victron Energy Product Type DC MEGA Fuse Current Rating 500A Voltage Rating Up to 80V DC Terminal Size M8 Distance Between Terminals 50.8 mm Dimensions (L x W) 68.8 x 19 mm Weight 10g Typical Applications Application Description Solar/Wind Charge Controllers Protecting the connection between high-power charge controllers and battery banks. Off-Grid Inverter DC Input Essential protection for the DC input side of off-grid inverters connected to batteries. DC Power Distribution Safeguarding main DC distribution or charging circuits in various systems. Automotive & Marine Systems Providing high-current protection in demanding vehicle, boat, and RV electrical setups. Built-In Protection Functions The Victron Energy MEGA Fuse is specifically designed to provide robust protection against critical electrical faults. It offers reliable Over-Current Protection • safeguards against damaging Short Circuits • mitigates risks from Equipment Faults • and helps prevent issues arising from Wiring Errors by rapidly interrupting the circuit when current exceeds its 500A rating. Common Questions What is a MEGA fuse used for? MEGA fuses are designed for high-current DC applications, typically found in solar power systems, battery banks, inverters, automotive, and marine electrical systems. They protect circuits from overloads and short circuits. How do I choose the correct fuse rating? The fuse rating should be slightly higher than the maximum continuous operating current of the circuit it protects, but lower than the maximum current capacity of the wiring and connected equipment. Always consult your system's design specifications. Is a fuse holder required for this MEGA fuse? Yes, the Victron Energy MEGA Fuse requires a compatible MEGA fuse holder for safe and proper installation. The fuse holder provides secure connections and insulation. Can this fuse be used with AC systems? No, this Victron Energy MEGA Fuse is specifically designed and rated for DC (Direct Current) systems up to 80V. It should not be used in AC (Alternating Current) circuits. Installation Notes Always ensure the power to the circuit is completely disconnected before attempting any installation or maintenance. Install the MEGA fuse into a compatible MEGA fuse holder, ensuring secure and clean terminal connections. Verify that the fuse rating matches or is appropriate for the circuit's maximum operating current and cable capacity. Professional installation by a qualified electrician is recommended for complex or high-power DC systems. Before You Buy Verify Current & Voltage: Confirm that the 500A rating and 80V DC compatibility meet your system's specific requirements. Fuse Holder Compatibility: Ensure you have or purchase a suitable MEGA fuse holder for this fuse type. System Design: Consult your system's wiring diagrams and component specifications to ensure correct fuse selection. Spares: Consider purchasing spare fuses for future maintenance or unexpected events. Always verify product specifications and compatibility with your specific system requirements before purchase and installation. All information is based on manufacturer data.
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