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Approvals & Standards


  • UL Recognized to Standard 4248-1, File E52283
  • CSA File No. 032169, Class 6225-01
  • IEC 60269-2-1 and 60947-3 Compliant
  • UL Listed to Standard 4248-19 (PV), File E347822
  • CSA Component File No. 032169, Class 6225-30

Key features & benefits

Mersen USM Series UltraSafe Modular Fuse holders introduce a new level of safety for Midget 1-1/2" x 13/32" AC and DC-rated fuses up to 30 amperes. UltraSafe holders qualify as “Finger-safe” under IEC and DIN standards to an IP20 grade of protection, including fuse changing (with the flick of a finger). UltraSafe holders are available in 1, 2, 3 or 4 poles, with or without visual blown-fuse indicators in each pole. Multipole units can also be field assembled by ordering pin-tie handles.
UltraSafe holders save up to 15% mounting space and any combination can be snapped onto 35mm DIN-rail for extra savings in panel building time. UltraSafe body material is tough and durable polyamide, with exceptional insulating properties.

More specifications


  • All circuits up to 600 volts for motors, control circuits, transformers, etc…
  • DC circuits up to 1000VDC including photovoltaic applications
  • Non-load disconnect

Product Specifications

Item Number



Fuse Holder UltraSafe™ 800VAC 1000VDC Midget 30A 3-Pole Pressure Plate IP65  

EAN/UPC code


Rated voltage AC UL

800   V

Rated voltage DC UL

1000   V


50/60   Hz

Rated current

30   A

ROHS Compliant


AC or DC


Fuse class


Short Circuit Current Rating (SCCR)

100   kA

Fuse Type/Class


Number of Poles


Wiring range

#6 to #14 Solid or Stranded  

Fuse Installation Method


Body/Insulating Material


Torque Rating

1.695   N m

Max Fuse Rated Current

30   A

Installation Mounting

DIN Rail  

Product Weight

0.195   kg

Product Width

52.6   mm

Product Length

78   mm

Product Height

58.9   mm

Sell Pack Quantity

4   EA

Sell Pack Weight

0.821   kg

Sell Pack Width

88.9   mm

Sell Pack Length

215.9   mm

Sell Pack Height

67.6   mm