Mersen US143NM, UltraSafe US14 Modular fuse-holder for 14x51 fuse links, 750VAC/DC, 3+N Poles, 50A, , with 3 Microswitches
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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.
| Item number | Y331152 |
| Rated voltage AC UL | 800 V |
| Rated voltage DC UL | 1000 V |
| Frequency (Hz) | 50 ... 60 Hz |
| Rated voltage AC IEC | 750 V |
| Rated voltage DC IEC | 750 V |
| Ampere Rating | 50 A |
| Short Circuit Current Rating (SCCR) | 100 kA |
| Fuse Size | 14x51 |
| Design Details | US14 triple pole + neutral conductor, 3 microswitches |
| Number of Poles | 3-Pole+N |
| Wiring range | #2 - #14 |
| Connection/Terminal Material | Tin-Plated Copper |
| Connection/Terminal Type | Clip |
| Fuse Installation Method | Clip-in |
| Torque Rating | 30.978 lb-in |
| Rated Impulse Withstand Voltage | 8 kV |
| Rated Insulation Voltage | 690 V |
| Installation Mounting | DIN rail acc. EN 60715 |
| Dimensions | 3.01'' (L) x 2.09'' (W) x 4.36'' (H) |
| Body/Insulating Material | Polyamide |
| Product Weight | 1.374 lb |
| Safety Certifications | ROHS, CE, CSA |