Mersen 61005sj Fuse Block 600V 100A Class J

Product Description

The MERSEN 61005sj is a Class J fuse block designed as an adder pole unit for expanding existing fuse holder assemblies. Rated at 100 amps and 600 volts AC and 600 volts DC, it handles high-capacity branch circuit protection in commercial and industrial electrical systems. The clip-in fuse installation method allows fast, tool-free fuse changes. The block mounts via direct screw mount to a panel or enclosure surface. The body is constructed from GFPC insulating material, providing dielectric stability in demanding service environments. Licensed electricians and industrial maintenance technicians are the primary installers.

This adder pole fuse block is suited for commercial and industrial electrical panels where an existing fuse holder assembly requires additional pole capacity. It is typically installed in motor control centers, distribution panels, and industrial equipment enclosures where Class J fusing is specified for current-limiting protection. The direct screw mount configuration keeps the unit securely positioned in high-vibration environments. It ships in a sell pack of 3 units, making it practical for multi-pole expansion jobs.

Key Features

• 100A maximum fuse rating with 600V AC and 600V DC ratings for broad panel compatibility
• Class J fuse class provides current-limiting short circuit protection
• Adder pole design expands existing fuse block assemblies without replacing the base unit
• Clip-in fuse installation method speeds fuse replacement and reduces downtime
• Direct screw mount secures the block firmly to panel surfaces or enclosures
• GFPC insulating body material offers strong dielectric performance
• RoHS compliant construction

Compatibility

Designed as an adder pole expansion unit for Class J fuse block assemblies rated at 100A and 600V. Compatible base units and system families are not specified in available data; verify fitment against existing MERSEN fuse holder series documentation before ordering.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit before mounting or servicing the fuse block. Secure the unit using appropriately rated screws for the panel or enclosure material. Confirm that the installed Class J fuse does not exceed the 100A maximum fuse rating of this block.