The Schneider Electric A9L1C602 is an Acti9 iPRD1 C25r Type 1+2 surge protection cartridge rated for 100 kA nominal discharge current (common mode) and a maximum of 150 kA (N/PE), with an impulse current Iimp of 100 kA per the Type 1 classification. It responds in under 100 ns, clamping the voltage protection level to below 1.5 kV (common mode).
The Type 1+2 classification means this cartridge handles both direct lightning strikes (Type 1, 10/350 µs waveform) and switching transients (Type 2, 8/20 µs) in a single unit — a common requirement for main distribution boards where the service entrance and sub-distribution protection are combined. The 100 kA nominal discharge current (In) is the rating for repeated surges; the 150 kA maximum (Imax) is the single-event survival limit. A 100 kA Iimp (Type 1 impulse current) confirms it can safely divert a direct lightning stroke's energy per IEC 61643-11. The <1.5 kV protection level (Up) means downstream equipment rated for 1.5 kV or higher is protected; if your load's impulse withstand (Uw) is lower, you need an additional Type 3 stage. The 305 V maximum continuous operating voltage (Uc) allows it to ride through normal grid fluctuations without degrading, and the 1200 V temporary overvoltage (Ut) withstand for 200 ms handles fault conditions on the N/PE path.
Deployment context
At 18 mm wide (2 x 9 mm pitches), it occupies a single modular space, leaving room for other protection or metering modules in the same row.