Overview
The TPK-12.5-PVxxx series is a Type 1+2 / Class I+II DC surge protective device designed specifically for photovoltaic systems operating from 500 VDC to 1500 VDC. Built with heavy-duty high-energy MOV technology, it delivers enhanced lightning impulse current capacity of 12.5 kA (10/350 μs) — making it ideal for utility-scale solar farms, BESS, and installations requiring higher surge withstand capability than standard Type 1+2 devices. Featuring full-mode protection (+/−/PE), compact DIN-rail pluggable design, and optional remote signaling, this SPD provides robust DC-side protection for solar panels and inverters against lightning-induced overvoltages.

Key Features
■ Uc: 500 / 600 / 800 / 1000 / 1200 / 1500 VDC
■ Type 1+2, Class I+II protection
■ Iimp (10/350 μs): 12.5 kA
■ In (8/20 μs): 30 kA
■ Imax (8/20 μs): 60 kA
■ Ultra-fast response time: < 25 ns
■ Full-mode protection: + to −, + to PE, − to PE
■ Thermal protection and status indication (Green = good, Red = replace)
■ Optional remote signaling (NO/NC, 3-pin)
■ DIN-rail mountable 35 mm, pluggable format
■ Enclosure: PA66, flame-retardant UL94 V-0, IP20 rated
■ Operating temperature: −40°C to +80°C
■ Altitude: up to 4000 m
■ Max conductor cross-section: 35 mm² (solid), 25 mm² (flexible)