SPC25/3+1 is a metal oxid varistor lightning and surge arrester, combined with gas discharge tube Type 1+2 according to EN 61643-11 and IEC 61643-11.These are recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 0–1 (according to IEC 1312-1 and EN 62305), where they provide the equipotential bonding and discharge of both, the lightning current and the switching surge, which are generated in power supply systems entering the building. The use of the lightning current arresters SPC25/3+1 is mainly in the power supply lines, which are operated as TN-S and TT systems. The main use of SPC25/3+1 arrester is in structures of LPL I – II according to EN 62305 ed.2.

Double terminals of the device allow the “V” connection at the maximum current-carrying capacity of 125A.

Internal wiring diagram
Internal wiring diagram
Dimension drawing
Dimension drawing
Installation diagram
Installation diagram Počet fotek v galerii: 2
Test class according to EN 61643-11:2012 and IEC 61643-11:2011 TYPE 1+2, CLASS I+II
Network type TN-S
Maximum continuous operating voltage UC 275 V AC / 350 V DC
Impulse discharge current for class I test (10/350) L/N limp 25 kA
Charge L/N Q 12,5 As
Specific energy for class I test L/N W/R 156 kJ/Ω
Impulse discharge current for class I test (10/350) N/PE Iimp 100 kA
Charge N/PE Q 50 As
Specific energy for class I test N/PE W/R 2500 kJ/Ω
Total discharge current (10/350) L1+L2+L3+N->PE Itotal 100 kA
Nominal discharge current for class II test (8/20) In 25 kA
Maximum discharge current Imax 50 kA
Total discharge current (8/20) L1+L2+L3+N->PE Itotal 200 kA
Voltage protection level Up < 1,2 kV
Temporary overvoltage (TOV) L/N UT 335 V/5 s
Temporary overvoltage (TOV) N/PE UT 1200 V/0,2 s
Response time L/N tA < 25 ns
Response time N/PE tA < 100 ns
Max. back-up fuse 250 A gL/gG
Max. back-up fuse („V“ connection) 125 A gL/gG
Short-circuit current rating at max. back-up fuse ISCCR 80 kArms
LPZ 0-1
Housing material Polyamid PA6, UL94 V-0
Degree of protection of enclosure IP20
Operating temperature ϑ -40°C ... +80 °C
Cross-section of the connected conductors (at tightening moment of clamps 3 Nm) 35 mm2 (solid)
25 mm2 (wire)
Method of assembly DIN rail 35 mm
Failure signalisation (S) pushed in - ok / pushed out - failure
Lifetime min. 100 000 h
Weight m 1125 g
Article number 10 732
Installation instructions (1.44 MB)
2D model (681.51 KB) for registered only
3D model (1.04 MB) for registered only
Certificates (130.43 KB) for registered only
EC declaration of conformity (81.86 KB) for registered only