Project Description



Surge protection device, fine protection type 3 for distributor installation

  • Suitable for DC and AC voltage systems
  • Standard design for single core systems
  • Two-stage protection circuit
  • With installation-friendly, screwless connection terminals
  • With inductive decoupling in the longitudinal branch
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StandardsEN 61643-21 / IEC 61643-21
Nominal voltage Un24 V
Max. continuous operating d.c. voltage Uc28 V
Rated current IL1 A
Serial impedance per path μH120±10%
Impulse durability line-lineC1: 1 kV / 0,5 kA
Impulse durability line-earthC2: 10 kV / 5 kA
Total impulse durability (10/350μs) IimpD1: 3 kA
Nominal discharge current (8/20μs) In5 kA
Maximum discharge current (8/20μs) Imax10 kA
Voltage protection level line-line Up60 V
Voltage protection level line-earth Up600 V
Shielding connection availableNo
Shield connection
Range of operating temperatures (TU)-40/+80°C
Operating state / fault indication
Number of ports2
Cross-sectional area0,14 – 2,5 mm2 solid /flexible
For mounting on35 mm DIN rail acc. to EN 60715
Enclosure materialthermoplastic
Place of installationindoor installation
Degree of protectionIP20
Capacity1 module(s), DIN 43880
Type of remote signalling contact
a.c switch capacity
d.c switch capacity