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US6J - Class J

Approvals & Standards
UL Listed, guide IZLT File E52283
CSA Certified C22.2, class 6225 01, File 32169
IEC certified 60269-1, 60947-3

Mersen UltraSafe Modular 600 Volt Fuse Holders for Class J fuses introduce a new level of safety and ease for installing or replacing Class J fuses. UltraSafe holders qualify as “finger-safe” to an IP20 grade of protection under IEC standards. The US3J accommodates 30A Class J or 22 x 58 mm French Ferrule* fuses. The US6J is for 60A Class J fuses. UltraSafe holders are available in compact 1, 2, or 3 pole units, with or without blown-fuse indicators in each pole. Multi-pole units can also be made up in the field by using the multiplepole Assembly Kits. All units have provisions for locking in the open position for safety during fuse changeouts or equipment servicing. US3J and US6J holders can be snap-mounted to 35 mm DIN-rail and they have a unique latch which will stay open to allow re-positioning of the holder in the future. UltraSafe body material is tough and durable polyamide. *Holder not UL listed when installed with French Ferrule fuses. RECOMMENDED FUSE USAGE: *US3J, US6J use with AJT, A4J, HSJ

Mersen UltraSafe Modular 600 Volt Fuse Holders for Class J fuses introduce a new level of safety and ease for installing or replacing Class J fuses. UltraSafe holders qualify as “finger-safe” to an IP20 grade of protection under IEC standards. The US3J accommodates 30A Class J or 22 x 58 mm French Ferrule* fuses. The US6J is for 60A Class J fuses. UltraSafe holders are available in compact 1, 2, or 3 pole units, with or without blown-fuse indicators in each pole. Multi-pole units can also be made up in the field by using the multiplepole Assembly Kits. All units have provisions for locking in the open position for safety during fuse changeouts or equipment servicing. US3J and US6J holders can be snap-mounted to 35 mm DIN-rail and they have a unique latch which will stay open to allow re-positioning of the holder in the future. UltraSafe body material is tough and durable polyamide. *Holder not UL listed when installed with French Ferrule fuses. RECOMMENDED FUSE USAGE: *US3J, US6J use with AJT, A4J, HSJ

Key features & benefits

  • Finger-safe IP20 protection

  • Optional indicator lights

  • DIN-rail mount

  • Compact footprint

  • Quick, easy fuse change

Applications

  • 600 volt motors, transformers, lighting, heating, control circuits, general loads

  • Non-load disconnect

Technical Specifications
Frequency (Hz) 50/60 Hz
Amperage Range 35 to 60 A
Fuse Class Class J
Short Circuit Current Rating (SCCR) 200 kA
Flammability Rating 94 V-0

Reference Finder

7 references in this series

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Item number Ampere rating Fuse size Sort descending Fuse Type/Class Number of poles Indication System Product weight
60A - Class J 1-Pole No 0.2722kg
60A - Class J 1-Pole Yes 0.2722kg
60A - Class J 2-Pole No 0.5534kg
60A - Class J 2-Pole Yes 0.5534kg
60A - Class J 3-Pole No 0.8301kg
60A - Class J 3-Pole Yes 0.8301kg
60A - Class J N No 0.2722kg
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