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

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

The Mersen RFS Series is a general purpose Class H renewable fuse line built for fast-acting protection on 600VAC AC systems where available short-circuit currents do not exceed 10,000 amperes. Each fuse uses a clip mount design with brass connection/terminal material and an FWGE body/insulating material, and is rated for standard 50/60 Hz AC service. Because these are renewable fuses, blown elements can be restored using RLS series die-cut zinc replacement links, available from 3 to 600 amperes across 30 ratings, extending the service life of the fuse body without full replacement. The RFS Series covers a range of ampere ratings within the Class H category for panelboards, disconnects, and general circuit protection where code-compliant, renewable overcurrent protection is required.

Key Features

• Speed/Characteristic: Fast-Acting response for Class H general purpose protection.
• Rated Voltage AC (UL): 600V for line and equipment-level protection.
• Fuse Class: Class H, suitable where available short-circuit currents do not exceed 10,000 amperes.
• Terminal Material: Brass connection/terminal construction for a reliable clip-mount contact surface.
• Mounting: Clip mount design compatible with standard fuse holders.
• Body/Insulating Material: FWGE construction for the fuse housing.
• Frequency: Rated for 50/60 Hz AC systems.
• Renewable Design: Restorable using RLS series die-cut zinc replacement links, 3 to 600 amperes in 30 ratings.

Certifications & Compliance

• Rated Voltage AC UL: 600V

Technical Specifications

• Mounting: Clip
• Connection/Terminal Material: Brass
• Frequency (Hz): 50/60 Hz
• Speed/Characteristic: Fast-Acting
• Rated voltage AC UL: 600 V
• AC or DC: AC
• Fuse Class: Class H
• Body/Insulating Material: FWGE

Typical Applications

• General Purpose Overcurrent Protection
• Panelboard and Load Center Circuits
• Disconnect Switch Fuse Protection
• Commercial and Industrial AC Systems
• Renewable Fuse Holder Retrofits

Why Mersen?

Mersen RFS Series fuses combine a Class H fast-acting design with a renewable construction, so brass terminal connections and an FWGE body support dependable performance across 600VAC AC applications rated up to 10,000 amperes of available short-circuit current. The ability to restore the fuse using RLS series replacement links gives electrical professionals a code-compliant, cost-effective way to maintain protection over the life of the installation. Choose Mersen RFS Series fuses for reliable, general purpose overcurrent protection built to professional electrical standards.