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The MERSEN US6J1 is a single-pole, Class J fuse holder rated for 60 amps. It is designed to securely mount and electrically terminate a Class J fuse in panel, enclosure, or disconnect installations. The holder provides a reliable means of overcurrent protection in branch-circuit and feeder applications where Class J fuses are specified. Licensed electricians and electrical contractors are the primary installers. The compact form factor and defined ampacity make this holder a straightforward fit in commercial and industrial power distribution builds.
The US6J1 is suited for use in residential service panels, commercial electrical enclosures, and industrial control cabinets requiring single-pole Class J fuse termination at 60A. It is packaged six units per pack, making it practical for contractors outfitting multiple circuits or stocking service inventory. Class J fuse holders are commonly specified where high-interrupting-capacity overcurrent protection is required in a compact footprint.
Designed as an OEM-style replacement or new-installation fuse holder for single-pole Class J fuse applications in electrical panels, enclosures, and disconnects.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before installing or replacing the fuse holder. Verify that the supply conductors are sized and rated to match the 60A holder rating before terminating. Do not install a fuse with a higher ampere rating than the circuit is designed to carry.
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