UltraSafe™ US14, Modular fuse-holders
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.
Product data sheets
- DS-Semiconductor-Modular-Fuse-Holders-UltraSafe-US14-EN
pdf - 1.79 MB
Brochures and Flyers
- BR-Panel-Builder-Mersen-EN
pdf - 6.01 MB
Compliance
- COM-CSA-certificate-CMS-US-14-22-fuseholders
pdf - 109.37 KB
- COM-UL-certificate-E52283v5s1-CMS1422-US1422-fuseholders
pdf - 134.64 KB
- COM-REACH-declaration-0016-CMS-US-14-22-27-fuseholders
pdf - 283.62 KB
- COM-DNV-GL-certificate-CMS-US-10-14-22-fuse-holders
pdf - 292.74 KB
- COM-CE-ROHS-declaration-0016-CMS-US-14-22-27-fuseholders
pdf - 234.09 KB
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 |
| Wire Type | Rigid wire = 1.5-35mm² (16-3AWG) or Stranded wire = 1.5-25mm² (16-4AWG) |
| UL Category Code | IZLT2 |
| CE Conformity | Yes |
| Reach Compliant | Yes |
| Max Operating Temp. | 60 °C |
| Min Operating Temp. | -25 °C |
| Max Storage Temp. | 80 °C |
| Min Storage Temp. | -25 °C |
| Harmonized System | 853690 |
| Degree of Protection (IP) | IP20 |
Reference Finder
Scroll
| 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 |