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Surge Arrester – Type 2

SLP40-255/NPE

Pluggable single-pole N-PE surge arrester.

  • Specifically designed for use in “3+1” and “1+1” circuits of TT systems according to IEC 60364-5-53 between neutral conductor N and protective conductor PE
  • High discharge capacity
  • Two-part surge arrester consisting of a base part and a pluggable spark-gap-based protection module
surge-protective-device-slp40-255-npe
dimensions-slp40-255-npe
Dimensions
basic-circuit-diagram-slp40-255-npe
Basic circuit diagram

Technical data

TypeSLP40-255/NPE
SPD according to EN 61643-11 / IEC 61643-11type 1 + type 2 / class I + II
Max. continuous operating a.c. voltage [N-PE] Uc255 V AC (48/62 Hz)
Nominal discharge current (8/20μs) In20 kA
Maximum discharge current (8/20μs) Imax40 kA
Lightning impulse current (10/350μs) [N-PE] Iimp12,5 kA
Voltage Protection level [N-PE] UP1,5 kV
Follow current extinguishing capability [N-PE] Ifi100 Arms
Response time [N-PE] tA100 ns
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic1200 V / 200 ms – withstand
Range of operating temperatures (TU)-40/+80°C
Operating state / fault indicationgreen / red
Number of ports1
Cross-sectional area (min.)1.5 mm2 solid /flexible
Cross-sectional area (max.)35 mm2 stranded / 25 mm2 flexible
For mounting on35 mm DIN rail acc. to EN 60715
Enclosure materialthermoplastic
Place of installationindoor installation
Degree of protectionIP 20
Capacity1 module(s), DIN 43880
Approvals
Type of remote signalling contact
a.c. switching capacity
d.c. switching capacity
Cross-sectional area for remote signalling terminals

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