Mersen 61007sj Fuse Block 600V 100A 2 Pole Class J

Product Description

The MERSEN 61007sj is a spring reinforced fuse block rated for 600 VAC/VDC at 100 amps, designed for Class J fuse applications in industrial and commercial electrical distribution systems. Built from glass filled polycarbonate, it delivers solid insulation performance in demanding panel and enclosure environments. The two-pole configuration uses a box side clip connection type and accepts wire sizes from 6 to 2/0 AWG, making it well suited for moderate to heavy feeder circuits. Licensed electricians and panel shop technicians are the primary installers for this type of component.

This fuse block is intended for use in electrical panelboards, switchgear, motor control centers, and industrial control enclosures where Class J fuse protection is required. The threaded mounting style allows secure, fixed installation to DIN-rail-compatible structures or direct panel surfaces. It is compatible with AJT, A4J, and HSJ series fuses as specified by the manufacturer, covering a range of time-delay and high-speed Class J fuse families commonly used in motor branch circuits and feeder protection applications.

Key Features

• Rated 600 VAC/VDC at 100 amps for Class J fuse service
• Two-pole configuration with box side clip connection type
• Accepts 6 to 2/0 AWG wire for flexible feeder circuit wiring
• Glass filled polycarbonate construction for durable insulation
• Threaded mounting for secure panel or enclosure installation
• Spring reinforced design maintains consistent fuse contact pressure over service life

Compatibility

Designed for use with AJT, A4J, and HSJ series Class J fuses as specified by MERSEN.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit completely before installing or servicing this fuse block. Torque wire terminations to 100 in-lb for line-side connections and 60 in-lb where specified, using an insulated torque screwdriver or driver rated for the terminal size. Verify fuse series compatibility before inserting fuses and confirm the enclosure rating is appropriate for the installation environment.