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Approvals & Standards

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

Key features & benefits

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

More specifications

Applications

  • 600 volt motors, transformers, lighting, heating, control circuits, general loads
  • Non-load disconnect

Product Specifications

Frequency (Hz)

50/60   Hz

Ampere Range

35 to 60 A  

Fuse Class

Class J  

Short Circuit Current Rating (SCCR)

200  

Degree of Protection (IP)

IP65  

Flammability Rating

94 V-0  

UL File Number

File E52283  

UL Category Code

IZLT  

CSA File number

Class 6225, File 032169_0_000  

REACH Compliant

Yes  

Max Operating Temp.

80   °C

Max Storage Temp.

80   °C

Min Storage Temp.

-25   °C

Harmonized System

853690  

References in this serie  (7)

Item number - Catalog No.

Ampere rating

Fuse size

Fuse Type/Class

Number of poles

Indication System

Product weight

US6J1

60   A

-

Class J  

1-pole  

-

0.6   lb

US6J1I

60   A

-

Class J  

1-pole  

Yes  

0.6   lb

US6J2

60   A

-

Class J  

2-pole  

-

1.22   lb

US6J2I

60   A

-

Class J  

2-pole  

Yes  

1.22   lb

US6J3

60   A

-

Class J  

3-pole  

-

1.83   lb