Mersen Surge Protective Device (SPD) STPT12-12K440V-4P
Type 1+2 combined surge protective device rated at 440V for main distribution boards in high-voltage industrial systems. Provides comprehensive lightning current and surge voltage protection with integrated backup fuse. 4-pole configuration suitable for TT and TN-S systems.
| Item Code | STPT12-12K440V-4P |
| Origin | Spain |
| Warranty | 12 months |
| Manufacturer | Mersen |
| Rated Voltage | 440 VAC |
| Impulse Current | Iimp = 12.5kA |
| Maximum Discharge Current | Imax = 50kA |
| Size | 144 x 76 x 90 mm |
| Series | STPT12 |
| Product Type | Type 1+2 SPD |
| Standards | IEC 61643-11 / EN 61643-11 |
| Applications | Main Distribution Boards (MDB), Lightning Protection, High-Voltage Industrial Systems |