Mersen RFS Series Class H Fast-Acting Fuse, 600V

Mersen RFS Series Class H Fast-Acting Fuse, 600V

The Mersen RFS Series is a general-purpose Class H renewable fuse built for AC circuits operating at 50/60 Hz where available short-circuit currents do not exceed 10,000 amperes. Rated up to 600V AC and engineered with a fast-acting speed/characteristic, the RFS fuse delivers dependable overcurrent protection for branch-circuit and general electrical applications. Because it is a renewable fuse, replacement is handled with RLS series die-cut zinc replacement links, available from 3 to 600 amperes across 30 ratings, allowing the fuse holder to be reused rather than discarded after operation.

Key Features

• Fuse Class: Class H renewable fuse for general-purpose overcurrent protection.
• Voltage Rating: Rated 600V AC for use across standard commercial and industrial branch circuits.
• Frequency: Designed for 50/60 Hz AC systems.
• Speed/Characteristic: Fast-Acting response for applications requiring quick fault clearing.
• Short-Circuit Rating: Suitable for circuits where available short-circuit current does not exceed 10,000 amperes.
• Renewable Design: Compatible with RLS series die-cut zinc replacement links (3 to 600 amperes, 30 ratings) so the fuse can be re-linked instead of replaced entirely.
• Packaging: Supplied 20 EA per package for stocking and maintenance use.

Technical Specifications

• AC or DC: AC
• Frequency (Hz): 50/60 Hz
• Speed/Characteristic: Fast-Acting
• Rated Voltage AC UL: 600 V
• Fuse Class: Class H
• Packaging: 20 EA

Typical Applications

• Commercial and Industrial Electrical Distribution
• General-Purpose Branch Circuit Protection
• Panelboard and Fusible Switch Applications
• Facilities Requiring Renewable Fuse Maintenance
• AC Circuits with Short-Circuit Currents Up to 10,000A

Why Mersen?

Mersen's RFS Class H fuses combine a fast-acting response with a renewable design, giving electrical teams a cost-effective way to maintain overcurrent protection using RLS replacement links instead of full fuse replacement. Rated for 600V AC, 50/60 Hz service and short-circuit currents up to 10,000 amperes, the RFS series is built for consistent, code-aware performance in general-purpose electrical distribution systems. Shop the full Mersen fuse lineup at ZenSupply for reliable, professional-grade circuit protection.