Mersen DC Fuses | BeiLuo Distributor

About DC Fuses

Mersen DC fuses provide reliable protection for high-voltage DC applications including electric vehicles, battery energy storage systems, and solar power installations. These fuses are specifically designed for DC interruption with ratings up to 1500VDC and breaking capacities up to 100kA. DC fuses feature specialized arc quenching technology for safe interruption of DC fault currents.

As an authorized distributor of Mersen, BeiLuo provides a comprehensive range of DC Fuses products. These products are widely used in industrial control, automotive electronics, consumer electronics, and communication equipment. We offer a complete product line with multiple series to meet various application requirements. All products are genuine and original, backed by professional technical support and comprehensive after-sales service.

Selection Guide: How to Choose the Right DC Fuses

Product List

3 products available

Part Number ↕	Voltage Rating ↕	Current Rating ↕	Breaking Capacity ↕	Size ↕	Mounting ↕	Package ↕	Stock Status	Action
FD400-1000	1000V DC	400A	100kA @ 1000V DC	Size 3 (76mm)	Bolt-on M10 terminals	-	In Stock	View Details
FD300-1000	1000V DC	300A	100kA @ 1000V DC	Size 3 (76mm)	Bolt-on M10 terminals	-	In Stock	View Details
FD500-1000	1000V DC	500A	100kA @ 1000V DC	Size 4 (92mm)	Bolt-on M12 terminals	-	In Stock	View Details

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Frequently Asked Questions

Why do DC applications require special fuses?

DC fuses require special design because DC arcs are harder to interrupt than AC arcs. DC fuses feature: 1) Enhanced arc quenching chambers

2) Longer arc paths

3) Specialized filler materials

4) Higher breaking capacity ratings for DC

5) Different time-current characteristics. AC fuses cannot safely interrupt DC faults and may fail catastrophically.

Always use DC-rated fuses for DC applications. Never use AC-only fuses on DC circuits.