Thiết bị cắt sét đường nguồn 3 pha Mersen STPT12-25K275V-4P
This is a three-phase surge protection device from Mersen, designed for power distribution systems. It supports TN, TNC, and TT wiring configurations and complies with IEC 61643-11 standards.
- The description claims the device can handle a primary surge current of 25kA per phase and a secondary surge current of up to 100kA per phase.