The Siemens 3NA72520RC is a high-performance NH2 Low Voltage HRC (High Rupturing Capacity) fuse link from the Siemens SENTRON 3NA series, designed to provide reliable protection against overloads and short circuits in low-voltage electrical distribution systems. Rated at 315A, 500V AC, and offering a 120kA short-circuit breaking capacity, this fuse ensures fast fault interruption and enhanced protection for electrical equipment, cables, and industrial installations.
The fuse features a combined fault indicator for quick identification of blown fuse conditions and live grip lugs for safe handling during installation and replacement. Built in the NH2 size, the 3NA72520RC is suitable for use in switchboards, fuse switch disconnectors, motor control centers (MCCs), power distribution panels, and industrial automation systems. Its robust ceramic body and silver-plated fuse elements ensure high thermal stability, dependable electrical performance, and a long operational life even in demanding industrial environments.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3NA72520RC |
| Product Series | SENTRON 3NA |
| Product Type | NH HRC Fuse Link |
| Fuse Size | NH2 |
| Rated Current | 315 A |
| Rated Voltage (AC) | 500 V AC |
| Rated Voltage (DC) | 440 V DC |
| Utilization Category | gG |
| Breaking Capacity | 120 kA |
| Indicator Type | Combined Indicator |
| Grip Type | Live Grip Lugs |
| Application | Overload & Short-Circuit Protection |
| Standards | IEC / DIN NH Fuse Standards |
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