SIEMENS
High-performance SITOR fuse link designed for semiconductor protection. Featuring a 160A rated current, NH1 size, and slotted blade contacts, this aR-class fuse ensures rapid response for 1000V AC applications.
The Siemens 3NE3224 SITOR fuse link is specifically engineered to protect power semiconductors from the damaging effects of short circuits. Unlike standard fuses, SITOR fuses provide an ultra-fast "aR" response time, making them essential for protecting rectifiers, thyristors, and variable speed drives. This model features slotted blade contacts for secure mounting and a front indicator for immediate visual status identification.
Ultra-Fast Protection: The aR operational class ensures the fuse blows quickly enough to protect sensitive electronic components.
High Voltage Reliability: Rated for up to 1000V AC, suitable for demanding industrial power systems.
Easy Monitoring: Integrated front indicator allows maintenance teams to quickly identify blown fuses, reducing downtime.
Secure Installation: Slotted blade contacts provide a robust electrical connection and vibration resistance.
Function: High-speed interruption of short-circuit currents to prevent thermal damage to semiconductors.
Application: Ideal for frequency converters, UPS systems, soft starters, and DC drives.
Compatibility: Fits standard NH1 size fuse bases or disconnectors designed for slotted contacts.
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| SKU / Model | 3NE3224 |
|---|---|
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | SITOR fuse link |
| design of the product | With slotted blade contacts |
| design of an identification indicator | front indicator |
| design of the switching contact | With blade contacts, silver-plated |
| design of the fuse link | SITOR, LV HRC design |
| size of fuse system / acc. to DIN EN 60269-1 | NH1 |
| operating class of the fuse link | aR |
| varying load factor (WL) | 0.95 |
| type of voltage / of the operating voltage | AC |
| supply voltage | - |
| switching capacity current | - |
| ● acc. to IEC 60947-2 / rated value | 100 kA |
| power loss [W] | - |
| ● for rated value of the current / at AC / in hot operating state / per pole | 42 W |
| operational current | - |
| ● at 30 °C / rated value | 160 A |
| ● at 40 °C / rated value | 160 A |
| ● at 45 °C / rated value | 160 A |
| ● at 50 °C / rated value | 158.4 A |
| ● at 55 °C / rated value | 156.8 A |
| ● at 60 °C / rated value | 155.2 A |
| ● at AC / rated value | 160 A |
| product description | Not non-interchangeable |
| mounting position | Any, preferably vertical |
| ambient temperature / during operation | - |
| ● minimum | -20 °C |
| ● maximum | 50 °C |
| environmental category | -20 to +50 at 95% relative humidity |
| Miscellaneous | Miscellaneous |
| Weight | 0.576 kg |
| Dimensions | 178.00 × 200.00 × 85.00 mm |
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