The Schneider Electric A9L16659 is an Acti9 iPRD65r Type 2 surge arrester with pluggable MOV cartridges, four poles, and a 340 V maximum continuous operating voltage (L/PE, N/PE). It is designed for TN-C earthing systems in electrical distribution networks and clips onto a DIN rail. The unit includes a remote signaling contact (1 C/O, rated 0.25 A / 250 V AC) for monitoring the protection status from a panel or PLC.
Rated for a nominal discharge current (In) of 20 kA per mode (L/PE, N/PE) and a maximum discharge current (Imax) of 65 kA per mode — this is the peak single-event surge it can safely divert. The total discharge current (Itotal) across all modes reaches 260 kA, which covers a direct lightning strike on the building service entrance. The voltage protection level (Up) stays below 1.5 kV (L/PE, N/PE), meaning downstream equipment with a 1.5 kV impulse withstand rating sees coordinated protection. The associated circuit-breaker options (IC60N, iC60H, all 50 A curve C) serve as the disconnector; the surge arrester itself has no integral overcurrent protection.
