Why Choose the Mersen US6J1I UltraSafe™ Class J Fuse Holder?
The Mersen US6J1I is a premium single-pole UltraSafe™ Class J fuse holder designed to provide dependable overcurrent protection for industrial electrical systems. Engineered for Class J fuses rated up to 60 A, it combines a compact DIN rail mounted design with an integrated LED blown-fuse indicator, making fault identification fast and straightforward.
Part of the trusted Mersen UltraSafe™ US6J series, the US6J1I features an IP20 finger-safe construction, durable polyamide housing and pressure-plate terminals for secure conductor termination. The hinged fuse carrier can be locked in the open position, allowing safer fuse replacement and equipment servicing.
Rated for 60 A with operating voltages up to 600 V AC and 600 V DC, the US6J1I is ideal for protecting motors, transformers, heating equipment, lighting circuits, industrial machinery and general power distribution systems. The integrated LED indicator provides immediate visual confirmation when a fuse has operated, reducing maintenance time and improving system availability.
Key Advantages
- Compact single-pole Class J fuse holder for industrial installations.
- Integrated LED blown-fuse indicator for rapid fault identification.
- Compatible with 60 A Class J fuses.
- 600 V AC / 600 V DC rated operation.
- 200 kA short-circuit current rating when used with approved fuses.
- IP20 finger-safe construction improves operator safety.
Key Features
- Mersen UltraSafe™ US6J series.
- Single-pole modular fuse holder.
- 60 A maximum fuse rating.
- 600 V AC UL rated voltage.
- 600 V DC UL rated voltage.
- Integrated LED indication system.
- Compatible with AJT, A4J and HSJ Class J fuses.
- Pressure-plate terminals.
- Lockable hinged fuse carrier.
- 35 mm DIN rail mounting.
Visible Fuse Status for Industrial Power Systems
The Mersen US6J1I provides dependable overcurrent protection whilst allowing maintenance engineers to identify operated fuses instantly using the integrated LED indication system. This helps minimise downtime and simplifies troubleshooting in critical industrial installations.
Its robust finger-safe construction, compact footprint and high interrupting capacity make the US6J1I suitable for demanding applications including industrial control panels, motor circuits and power distribution equipment where reliability and safety are essential.
Typical Applications
- Industrial control panels.
- Motor and transformer protection.
- Power distribution systems.
- Heating and lighting circuits.
- OEM machinery.
- Industrial automation equipment.
