The Schneider Electric A9L16448 is an Acti9 iPRD8 surge arrester — a Type 2+3 device with a pluggable MOV cartridge, designed for TN-C earthing systems on 230 V AC (+/- 10 %) at 50/60 Hz distribution networks. It clips onto a DIN rail, occupies 4 x 9 mm pitches (36 mm wide), and carries a maximum discharge current of 8 kA common mode (L/PE and N/PE) with a nominal discharge current of 2.5 kA. The voltage protection level stays under 1 kV for Type 3 common mode N/PE, and the maximum continuous operating voltage is 340 V common mode.
Mounts via clip-on DIN rail. The tunnel-type terminals accept 2.5 to 35 mm² conductors on both the upside and downside; tighten to 2.5 N·m. The device is 81 mm high and 69 mm deep — fits standard distribution boards. The white housing (RAL 9003) is typical for Acti9 modular gear. Operating altitude is limited to 2000 m. The IK03 impact rating (per IEC 62262) means it withstands 0.35 J — enough for panel handling, not for exposed outdoor installation.
The iPRD8 is designed to be paired with an associated circuit breaker — the evidence lists IC60N, iC60H, or iC60L, all 20 A curve C, with Icu ratings of 10 kA, 15 kA, or 25 kA respectively. This coordination ensures the surge arrester is properly disconnected under fault conditions. Standards compliance includes EN 61643-11 and IEC 61643-11, with quality labels OVE, KEMA-KEUR, and NF. Relative humidity range is 5 to 90 %.