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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Type FLD2-48
Standards EN 61643-21 / IEC 61643-21
Nominal voltage Un 48 V
Max. continuous operating d.c. voltage Uc 53 V
Rated current IL 1 A
Serial impedance per path μH 120±10%
Impulse durability line-line C1: 1 kV / 0,5 kA
Impulse durability line-earth C2: 10 kV / 5 kA
Total impulse durability (10/350μs) Iimp D1: 3 kA
Nominal discharge current (8/20μs) In 5 kA
Maximum discharge current (8/20μs) Imax 10 kA
Voltage protection level line-line Up 70 V
Voltage protection level line-earth Up 600 V
Shielding connection available No
Shield connection
Range of operating temperatures (TU) -40/+80°C
Operating state / fault indication
Number of ports 2
Cross-sectional area 0,14 – 2,5 mm2 solid /flexible
For mounting on 35 mm DIN rail acc. to EN 60715
Enclosure material thermoplastic
Place of installation indoor installation
Degree of protection IP20
Capacity 1 module(s), DIN 43880
Type of remote signalling contact
a.c switch capacity
d.c switch capacity


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