Type 1 + 2 Surge Protection Kit for Hager 250A TP&N Distribution Boards to aid compliance with 18th Edition BS 7671.

Key Specifications
- Power Supply System -TN / TT
- Requirement class -SPD class II acc. to IEC 61643-11 2011; SPD Type 1 acc. to EN 61643-11 2012
- Max. continuous operating voltage Uc -L-N: 275 V a.c. / N-PE: 260 V a.c.
- Nominal voltage Un -240/415 V AC 50/60 Hz
- Impulse discharge current (10/350) µs (L-N/L-PE), peak current value Ilmp 25 kA
- Impulse discharge current (10/350) µs (N-PE), peak current value Ilmp 100 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