Mersen Surge Arrester Type 1+2 STPT12-12K275V-3P

Manufacturer: Mersen
Designation: Surge Arrester Type 1+2 12.5 kA Uc 275 V 3+0 TNC
Type: STPT12-12K275V-3P
DC Network Form: no
IT Network Form: no
TN Network Form: no
TN-C Network Form: yes
TN-C-S Network Form: no
TN-S Network Form: no
TT Network Form: no
Other Network Form: no
Number of Poles: 3
Lightning Impulse Current (10/350 µs): 12.5 kA
Maximum Continuous Voltage AC: 275 V
Rated Voltage AC: 230 V
Protection Level: 1.3 kV
Max. Overcurrent Protection Device V-Wiring (Fuse): 200 A
Mounting Type: DIN Rail TH35
Size: 3 TE
Max. Conductor Cross-Section Solid (Single/Multi-Wire): 25 mm²
Max. Conductor Cross-Section Flexible (Fine-Wire): 35 mm²
Remote Signaling: no
Device Signaling: optical
Test Class: Type 1 and 2
Integrated Pre-Fuse: no
Energetically Coordinated Protective Effect to the End Device: yes
Voltage Switching Spark Gap Technology: no
Protection Class (IP): IP20

Mersen Surge Arrester Type 1+2 STPT12-12K275V-3P: further details
STP T12 12.5 is a series of Type 1+2/Class I+II combined arresters for the diversion of lightning currents and protection against voltage spikes, in accordance with EN/IEC 61643-11. Suitable for the first level of protection in the main switchboard and areas exposed to the outdoors where installations are typically equipped with an external lightning protection system.