Mersen Class H/K Fuse Block, 250V AC/DC, Screw Connector

Mersen Class H/K Fuse Block, 250V AC/DC Screw Connector with Reinforced Clip

Mersen Class H/K fuse blocks are engineered to accommodate Class H and K power fuses rated 250VAC/250VDC, using a direct screw mount connector that accepts stranded or solid copper or aluminum wire. Across the Mersen Class H, K and R fuse block line, connector options also include pressure plate, box, and special-order stud styles to fit a wide range of wire types, but this configuration uses the direct screw connector with a torque rating of 20 lb-in. Each block features a molded glass-filled polycarbonate (GFPC) insulator with dielectric strength verified in excess of 2500V and a spring-reinforced, high-conductivity tinplated copper fuse clip for a secure, low-resistance connection. Built for 50/60 Hz AC/DC service with a clip-in fuse installation method, these blocks are RoHS compliant and designed for reliable, code-compliant performance in industrial and commercial power distribution equipment.

Key Features

• Voltage Rating: 250VAC/250VDC for Class H and K power fuses.
• Screw Connector: Direct screw mount terminal accepts stranded or solid copper or aluminum wire, torque rated to 20 lb-in.
• Reinforced Clip: Spring-reinforced, high-conductivity tinplated copper fuse clip provides a secure, low-resistance fuse connection that resists loosening under vibration.
• Durable Construction: Molded glass-filled polycarbonate (GFPC) insulating body with verified dielectric strength in excess of 2500V for long-term reliability.
• AC/DC Rated: Suitable for 50/60 Hz AC or DC applications, giving specifiers flexibility across power distribution designs.
• Clip-In Installation: Fast, tool-free clip-in fuse installation method simplifies fuse replacement and routine maintenance.
• Modular Multipole Design: Compatible adder blocks snap onto 1-, 2-, or 3-pole blocks to build segmented multipole configurations as panel designs require.
• Direct Screw Mount: Mounts securely to panel surfaces for straightforward integration into switchboards and control enclosures.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• ROHS Compliant: Yes

Typical Applications

• Industrial and Commercial Power Distribution Equipment
• Fuse Panels and Disconnect Switch Assemblies
• Motor Control Centers
• Electrical Switchboards and Panelboards
• OEM Panel Building and Control Enclosures
• Renovation and New Construction Electrical Projects

Why Mersen?

Mersen fuse blocks combine a glass-filled polycarbonate insulating body, verified dielectric strength in excess of 2500V, and spring-reinforced tinplated copper clips to deliver a dependable, code-compliant connection point for Class H and K power fuses. The RoHS-compliant construction, direct screw mount connector, and modular adder-block design make these blocks a solid choice for professionals building reliable, serviceable power distribution assemblies that need to scale from single-pole to multipole configurations without switching fuse block families.