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MERSEN FUSE US143N US143N
MPN: X331151
Alt. SKU: US143N
Special Price
£46.01
£38.34
Regular Price
£83.65
Why Choose the Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 3-Pole+N Pressure Plate IP20 US143N?
The UltraSafe™ US143N fuse holder offers reliable protection for circuits up to 800VAC and 1000VDC, accommodating 14x51mm fuses across three poles plus neutral. Its robust pressure plate terminals ensure secure connections, minimising maintenance and downtime in demanding industrial applications.
An IP20 finger-safe design enhances operational safety, while UL certification assures compliance with international standards. Easy installation and compact form make this holder ideal for panel builders and engineers seeking efficient, high-performance overcurrent protection in modern control systems.
Technical Specifications
- Item number: X331151
- Catalogue No: US143N
- Description: Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 3-Pole+N Pressure Plate IP20
- EAN/UPC Code: 0782001311049
- 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
- RoHS Compliant: Yes
- AC or DC: AC/DC
- Short Circuit Current Rating (SCCR): 100 kA
- Fuse Size: 14x51
- Design Details: US14 triple pole + neutral conductor
- 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: 3.5 Nm
- Max Fuse Rating: 50 A
- Housing Material: Polyamide
- Rated Impulse Withstand Voltage: 8 kV
- Rated Insulation Voltage: 690 V
- Installation Mounting: DIN rail acc. EN 60715
- Product Width: 106 mm
- Product Length: 76.5 mm
- Product Height: 110.8 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.6 kg
- Sell Pack Width: 120 mm
- Sell Pack Length: 180 mm
- Sell Pack Height: 85 mm
- Product group: Fuse Holders
- Conventional Free Air thermal Current With Fuse-Links Ith: 50 A
- Body/Insulating Material: Polyamide
- Product Weight: 0.6 kg
Product Code: X331151
Key Benefits
- High voltage rating for versatile AC/DC applications up to 800VAC and 1000VDC
- Robust pressure plate terminals for secure, maintenance-free connections
- IP20 finger-safe design enhances user safety during operation
- UL certification ensures compliance with stringent safety standards
- Compact size and DIN rail mounting for easy integration into control panels
- Supports 14x51mm fuse size with triple pole plus neutral configuration
Compatibility
This fuse holder is compatible with standard 14x51mm cylindrical fuses and designed for use with US14 triple pole plus neutral fuse links. It fits DIN rails according to EN 60715 standards and supports wiring ranges from #2 to #14, making it suitable for a wide range of industrial electrical installations.
Applications
- Industrial control panels and switchgear
- Overcurrent protection in AC and DC circuits
- Power distribution systems requiring high short circuit current ratings
- Renewable energy systems and battery storage protection
- Machinery and automation equipment electrical safety
Frequently Asked Questions
What fuse sizes does the US143N fuse holder support?
The US143N fuse holder supports 14x51mm fuse sizes, suitable for up to 50A rating.
Is the fuse holder suitable for both AC and DC applications?
Yes, it is rated for use in both AC (up to 800 V) and DC (up to 1000 V) circuits.
What mounting options are available for this fuse holder?
The fuse holder is designed for DIN rail mounting according to EN 60715 standards.
Does this product comply with safety standards?
Yes, it is UL certified and RoHS compliant, ensuring safety and environmental standards are met.
Common Search Terms
Fuse holder 14x51, 3 pole fuse holder, pressure plate fuse holder, UL fuse holder, IP20 fuse holder, industrial fuse holder, DIN rail fuse holder, AC/DC fuse holder, 50A fuse holder, high voltage fuse holder
| Manufacturer Part Number | X331151 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 0782001311049 |
| Height | 76.5mm |
| Width | 106mm |
| Depth | 110.8mm |
| HS Code | 85361050 |
| Country of Manufacture | Tunisia |
| Manufacturer | Mersen |
| Alternative Product SKU | US143N |
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