Siemens 3NA3144 LV HRC Fuse Link, Size NH1, 250A, gG, 500V AC / 440V DC Original Brand New
$74.50
High-performance LV HRC (Low Voltage High Rupturing Capacity) fuse element designed for robust circuit protection. Featuring a 250A current rating and gG utilization category, this NH1 size fuse ensures reliable performance for general-purpose cable and line protection in industrial applications.
Availability: In stock
Overview
The Siemens 3NA3144 is part of the trusted Sentron series, engineered to provide superior short-circuit and overload protection. This NH-type fuse link is built for durability and precision, featuring live grip lugs for secure handling and a front indicator for immediate visual identification of tripped states.
It is optimized for both AC and DC environments, making it a versatile choice for power distribution boards and industrial switchgear.
Key Benefit & Function
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Dual Protection: The gG (General Purpose) characteristic provides full-range breaking capacity, protecting equipment from both overloads and short circuits.
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High Breaking Capacity: Rated for 500V AC and 440V DC, ensuring safety across diverse electrical architectures.
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Visual Status Monitoring: Equipped with a Front Indicator that allows maintenance teams to quickly identify and replace blown fuses, reducing downtime.
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Safe Handling: Features Live Grip Lugs, designed for compatibility with standard NH fuse pullers for secure installation and removal.
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Siemens Reliability: Manufactured to high European standards, ensuring long-term stability and precise tripping curves.
Technical Specification
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Fuse Type: LV HRC Fuse Element
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Size: NH1
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Rated Current (In): 250 A
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Utilization Category: gG
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Rated Voltage AC (Un): 500 V
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Rated Voltage DC (Un): 440 V
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Indicator: Front Indicator
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Connection Type: Live Grip Lugs
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Brand: Siemens
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| Weight | 0.443 kg |
|---|---|
| Dimensions | 143.00 × 153.00 × 68.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | LV HRC fuse link |
| design of the product | With blade contacts |
| design of an identification indicator | Front indicators |
| design of the switching contact | Non-corroding, silver-plated |
| design of the fuse link | LV HRC fuse link |
| size of fuse system / acc. to DIN EN 60269-1 | NH1 |
| operating class of the fuse link | gG |
| mounting type | non-insulated grip lugs |
| type of voltage / of the operating voltage | AC/DC |
| supply voltage | – |
| ● at DC | 440 V |
| protection class IP | IP20, with connected conductors |
| switching capacity current | – |
| ● at DC / acc. to IEC 60947-2 / rated value | 25 kA |
| ● acc. to IEC 60947-2 / rated value | 120 kA |
| power loss [W] | 18.2 W |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 18.2 W |
| operational current | – |
| ● at 30 °C / rated value | 245 A |
| ● at 40 °C / rated value | 237.5 A |
| ● at 45 °C / rated value | 230 A |
| ● at 50 °C / rated value | 225 A |
| ● at 55 °C / rated value | 220 A |
| ● at 60 °C / rated value | 215 A |
| ● at AC / rated value | 250 A |
| width / of the enclosure | 47.2 mm |
| mounting position | Any, preferably vertical |
| ambient temperature / during operation | – |
| ● minimum | -5 °C |
| ● maximum | 40 °C |
| environmental category | -20 to +50 at 95% relative humidity |
| environmental category / during storage | 90% at 20°C |
| Test Certificates | other Marine / Shipping |
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