LIGHTNING-SURGE PROT. type2 (Dehn952110) 2P/20kA, modular

This SPD provides Type 2 protection for 230 V AC installations, using heavy-duty zinc oxide varistors and spark-gap technology for high discharge capability and coordinated Type 2 + Type 3 protection. It includes plug-in protection modules, fault indication, and is suitable for TT and TN single-phase systems.

• nominal voltage (UN): 230 V AC

• maximum continuous operating voltage (Uc): 275 V AC (L–N), 255 V AC (N–PE)

• voltage protection level (Up): ≤ 1.5 kV (L–N), ≤ 1.5 kV (N–PE)

• short-circuit withstand (ISCCR): 50 kA

• nominal discharge current (In): 20 kA (8/20 µs)

• SPD type / class: type 2 / class II (IEC 61643-11)

• Imax: 40 kA (8/20 µs)

• Iimp (N–PE): 12 kA (10/350 µs)

• number of poles: 2

• weight: 0.242 kg

Per piece.

• installation location: main AC distribution board / sub-distribution

• recommended back-up fuse / MCB: max. 125 A gG

• AC system compatibility: 230 V AC single-phase TT / TN (1+1 configuration)

• mounting type: 35 mm DIN rail

• IP protection: IP20

• max wire size: 1.5…35 mm² (stranded) / up to 25 mm² (flexible)

The surge protective device (SPD) protects AC electrical installations and connected equipment from transient overvoltages caused by lightning or switching operations.
Using heavy-duty varistors and spark-gap technology, it safely diverts surge energy to ground while maintaining coordinated type 2 and type 3 protection for sensitive downstream equipment.
It provides reliable protection in both L–N and N–PE modes and includes status indication for safe operation monitoring.