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Surge voltage protective module for one pair of wires for measuring and control systems, in LSA (IDC) disconnection modules. The protective module provides coarse and fine protection in LSA systems (construction form 2). Surge voltage protection connector for 1DA, with fail-safe contact.
  • Versions for various voltage levels
  • Two-step, coarse and fine protection
  • Fail-safe thermal overload protection
IEC category C2 / C1
Nominal voltage DCUN 24 V=
Max. continuous operating voltage DCUc 29 V=
Nominal voltage ACUN 15 V~
Max. continuous operating voltage AC (50/60 Hz) Uc 20 V~
Nom. operating current at 25°CIL 100 mA
C2 nominal discharge current (8/20 µs)In 5 kA
C2 nominal discharge current (8/20 µs) totalImax 10 kA
Protection level at In (line-PG)Up ≤ 60 V
Residual voltage at 1 kV/μs (line-PG)Ures ≤ 46 V
Additional Information
Response timetA ≤ 1 ns
Capacitance, line-earthC ≤ 1,4 nF
Series impedance per line at 25°CR 27 Ω
Max. transmission frequencyfg 4,2 MHz
Operating temperature rangeTU -25 - +60 °C
Earthing (Grounding) by via grounding bar and isolation unit on LSA backmount frame
Enclosure material / colour self-extinguishing thermoplastic (POCAN) UL 94 V0, grey

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