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PHP-PACYUS14-MSL

UltraSafe™ US14, Modular fuse-holders

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

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.

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.

Key features & benefits

  • Finger safe

  • Degree of protection: IP20

  • Optional visual blown fuse indicator & microswitch

  • DIN rail mounting

  • Modular design

  • Lockable

  • Multi-pole assembly kit available

  • Sealable in closed and open position

  • Plastic material UL94V2 mini

  • Flame retardant materials with glow wire flammability index to 960°C

Applications

  • All circuits up to 750VAC for protection of motors,

  • transformers, low voltage distribution, control circuits

  • Non-load operation

Technical Specifications
Frequency (Hz) 50 ... 60 Hz
Amperage Range 0…50 A
Short Circuit Current Rating (SCCR) 100 kA
Flammability Rating 94 V-0
Wire Insulation Rating 60/75 C

Reference Finder

Item number Ampere rating Fuse size Fuse Type/Class Number of poles Indication System Product weight
N331143 - US143 See product
50A 14x51 - 3-Pole No 0.43kg
P331144 - US143I See product
50A 14x51 - 3-Pole Yes 0.435kg
Q331145 - US143M See product
50A 14x51 - 3-Pole Yes 0.4475kg
S331147 - US143MI See product
50A 14x51 - 3-Pole Yes 0.455kg
T331148 - US143M2 See product
50A 14x51 - 3-Pole Yes 0.4525kg
W331150 - US143M2I See product
50A 14x51 - 3-Pole Yes 0.455kg
X331151 - US143N See product
50A 14x51 - 3-Pole+N No 0.6kg
Y331152 - US143NM See product
50A 14x51 - 3-Pole+N Yes 0.623kg
Z331153 - US141 See product
50A 14x51 - 1-Pole No 0.143kg
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