Siemens 3NC1440 SITOR Cylindrical Fuse Link 40A, 14×51 mm, aR Characteristic Original Brand New
$19.56
High-performance SITOR cylindrical fuse link designed for superior semiconductor protection. Measuring 14×51 mm with a 40A current rating, this ultra-rapid (aR) fuse supports voltages up to 690V AC and 700V DC, ensuring safety for power electronics and industrial applications.
Availability: In stock
Overview
The Siemens 3NC1440 belongs to the SITOR series, specifically engineered to protect sensitive power semiconductors from the damaging effects of short circuits. Thanks to its aR utilization category, it provides a much faster response time than standard fuses, making it an essential component for converters, rectifiers, and UPS systems.
Key Benefit
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Precision Protection: Optimized ultra-rapid tripping (aR class) specifically for power semiconductors.
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Versatile Voltage Range: Reliable performance in both AC (690V) and DC (700V) environments.
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Standardized Form Factor: The 14×51 mm cylindrical design ensures easy integration into standard fuse holders.
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Global Compliance: UL recognized for DC applications, meeting international safety standards.
Function
The Siemens 3NC1440 SITOR Cylindrical Fuse Link functions as an essential safety device within electrical circuits. It is designed to quickly interrupt the circuit in case of an overload or short circuit, preventing damage to the electrical equipment. Its high breaking capacity ensures that it can handle large fault currents without compromising system safety.
Key Features
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Size: 14×51 mm
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Rated Current: 40 A
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Voltage Ratings:
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Un AC: 690 V
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Un DC: 700 V
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Type: aR (general purpose, fast-acting fuse link)
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Certification: UL Certified for safety
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Reliable Protection: Protects against overloads and short circuits in electrical circuits
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| Weight | 0.021 kg |
|---|---|
| Dimensions | 15.00 × 50.00 × 15.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | SITOR cylindrical fuse link |
| design of the product | DC acc. to UL |
| operating class of the fuse link | aR |
| size of the fuse link | 14×51 mm |
| type of voltage / of the operating voltage | AC |
| supply voltage / at DC | 700 V |
| operating voltage / at AC / rated value | 690 V |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 8 W |
| operational current / at AC / rated value | 40 A |
| operational current / rated value | 40 A |
| product component / striker | No |
| mounting position | Any, preferably vertical |
| UK Declaration of Conformity | Miscellaneous |
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