Mersen D100QS70-4 High Speed DC Fuse, 70A 1000VDC, aR Semiconductor Protection, North American Round Body Style - Pack of 5

Mersen D100QS Series High Speed DC Fuses The Mersen D100QS series represents the next generation of North American style round body high-speed fuses, specifically engineered for the rigorous demands of high-power DC conversion and modern electrification industries. Designed to minimize , peak let-through current, and arc voltages during fault conditions, these fuses provide superior protection for sensitive power electronics and DC system components.

Key Technical Advantages:

• Optimal DC Protection: Specifically rated for 1000VDC with extremely low time constants () to ensure rapid clearing in DC circuits.
• Superior Thermal Performance: Engineered with low watts loss to reduce heat generation within enclosures and power conversion units.
• Enhanced Durability: Built to withstand high-loading cyclic conditions and mechanical vibrations, ensuring a long and reliable service life in industrial environments.
• High Interrupting Rating: Features a 100kA interrupting rating, providing maximum protection against massive short-circuit currents.

Standard Applications:

• EV Infrastructure: DC Fast-Charging stations and battery pack protection.
• Energy Management: High-power battery charging systems, Energy Storage Systems (ESS), and Electrical Energy Storage (EES).
• Industrial DC Systems: Battery Disconnect Units (BDU), UPS systems, inverters, and backup protection for DC relays and disconnect switches.

Compliance and Certifications:

• UL Recognized Component (File E60314)
• REACH/RoHS Compliant
• Utilization Category: aR (Partial range semiconductor protection)