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Approvals & Standards

  • UL Recognized Component, UL4248, guide IZLT2, file E52283
  • CSA Certified C22.2, class 6225, file 32169
  • IEC 60269-2 and IEC 60947-3
  • RoHS Compliant
  • Plastic material: NF 16101 & 16102 Requirement 2 Compliant

Key features & benefits

The innovative and comprehensive UltraSafe™ range of Mersen fuse-holders.
Modular fuse-holders are finger-safe under IEC standards to an IP20 grade of protection, including fuse changing (with the flick of a finger). Modular fuse-holders are available in 1, 2, 3 or 4 poles, with or without visual blown fuse indicator, in UL + IEC version.
Multi-pole units can also be field assembled by ordering pin-ties assembly kit. In this size, the range also offers the possibility to use microswitches (supplied with the holders or ordered separately) to allow remote indication.
UltraSafe™ range is made of tough and durable thermoplastic or thermoset material.

More specifications

Applications

  • All circuits up to 750VAC for protection of motors,
  • transformers, low voltage distribution, control circuits
  • Non-load operation

Product Specifications

Item Number

S331147  

Catalog number

US143MI  

Description

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 3-Pole Visual Indicator Microswitch Pressure Plate IP20  

EAN/UPC code

0782001311117  

Rated voltage AC UL

800   V

Rated voltage DC UL

1000   V

Frequency

50 ... 60   Hz

Rated voltage AC IEC

750   V

Rated voltage DC IEC

750   V

Rated current

50  

ROHS Compliant

Yes  

Short Circuit Current Rating (SCCR)

100   kA

Fuse size

14x51  

Design Details

US14 triple pole  

Indication System

Yes  

Indication System Type

Visual Indicator Microswitch  

Number of Poles

3-Pole  

Wiring range

#2 - #14  

Contact materials

Tin-Plated Copper  

Connection/Terminal Type

Clip  

Fuse Installation Method

Clip-in  

Body/Insulating Material

Polyamide  

Torque Rating

3.5   N m

Max Fuse Rated Current

50   A

Rated Impulse Withstand Voltage Uimp

8  

Rated Insulation Voltage

690   V

Conventional Free Air thermal Current With Fuse-Links Ith

50   A

Installation Mounting

DIN rail acc. EN 60715  

Comments

Wiring tool : PZ2 or flat 5.5x1mm screw drivers recommended (max. diameter 6mm)  

Product Weight

0.455   kg

Product Width

79.5   mm

Product Length

76.5   mm

Product Height

110.7   mm

Sell Pack Quantity

2   EACH

Sell Pack Weight

0.91   kg

Sell Pack Width

119.9   mm

Sell Pack Length

184.9   mm

Sell Pack Height

85.1   mm