Type 1/2 Class I/II Surge Protection Kit for Hager 125A TP&N Distribution Boards to aid compliance with 18th Edition BS 7671.

Key Specifications
- Power Supply System -TN / TT
- Requirement class -SPD class I/II acc. to IEC 61643-11; SPD Type 1/2 acc. to EN 61643-11
- Max. continuous operating voltage Uc -L-N: 275 V a.c. / N-PE: 260 V a.c.
- Nominal voltage Un -230/400 V AC 50/60 Hz
- Impulse discharge curr. Iimp (10/350) μs L-N / N-PE 12,5 kA / 50 kA
- Nominal discharge current In (8/20) microseconds 20 kA
- Max. discharge current I max (8/20) microseconds 40 kA

SPD Protection level Up -L-N: < 1.35 kV/ N-PE: <1.5 kV