Surge rresters for high-voltage applications, RSP-EH series

Technical info

RSP-EH... are Class I+II SPDs for surge and lightning protection of low-voltage power supply systems, especially in high-risk areas or building entry points within LPZ 0-2 zones (IEC 62305-4), protecting against damage caused by direct or nearby lightning strikes; suitable for main distribution boards.

Types of high voltage arresters and their applications:

  • RSP-EH25/100-275/10, RSP-EH25/100-440/10, RSP-EH12.5/100-750-10: interconnected single-pole SPD dedicated to the protection of transport and critical infrastructure
  • RSP-EH25/100-275/11, RSP-EH25/100-440/11: combined two-poles SPD - ”1+1” protection circuit for single phase 230/440 TT/TN systems
  • RSP-EH25/100-440-30: combined three-poles SPD - for environments with frequent switching operations or lightning strikes
  • RSP-EH25/100-275/31, RSP-EH25/100-440-31, RSP-EH22/100-960-31: combined four-poles SPD - ”1+1” protection circuit for single phase 230/440 TT/TN systems; for environments with frequent switching operations or lightning strikes.

Features of high voltage arresters:

• IEC / EN / VDE category: Class I+II / Type 1+2 / B+C

• Application: Main distribution boards (MDB)
• Remote fault indication
• Power networks: TT, TN-S, TN-C
• Protection modes: L-N, N-PE
• Protective components: MOV+GDT+TOV
• Housing: Modular (replaceable module)
• Mechanical status indicator: green/red flag
• Compliant with standards: IEC/EN 61643-11:2011, IEC 60364-4-53, IEC 62305, CE, RoHS

 Electrical parameters

Nominal voltage

Arrester type

Peak current (10/350 μs) Iimp 

Response time

Maximum discharge current (8/20 µs) Imax

230 V AC

RSP-EH25/100-275/10

25 kA

≤ 25 ns

100 kA

RSP-EH25/100-275/11

25 kA / 50 kA

(L-N / N-PE)

≤ 25 ns

100 kA / 100 kA

(L-N / N-PE)

RSP-EH25/100-275/31

25 kA / 100 kA

(L-N / N-PE)

≤ 25 ns

100 kA / 150 kA

(L-N / N-PE)

400 V AC

RSP-EH25 /100-440/10

22 kA

≤ 25 ns

100 kA

RSP-EH25 /100-440/11

22 kA / 50 kA

(L-N / N-PE)

≤ 25 ns

100 kA / 100 kA

(L-N / N-PE)

RSP-EH25 /100-440-30

22 kA

≤ 25 ns

100 kA

RSP-EH25 /100-440-31

22 kA / 100 kA

(L-N / N-PE)

≤ 25 ns

100 kA / 150 kA (L-N / N-PE)

690 V AC

RSP-EH12.5/100-750-10

4 kA

≤ 25 ns

100 kA

RSP-EH22/100-960-31

22 kA

≤ 25 ns

100 kA

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