• Series
  • Model
  • Brand / Made in
  • Description: Type 2 AC surge protector + RFI filtering
  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449 ed.5
  • Certification: CSA / EAC
  • Technology: MOV+Filter
  • SPD configuration: Single phase
  • Remote signaling of disconnection: Output on changeover contact
  • Network: 230/400 V
  • Max. AC operating voltage: 255 Vac
  • Max. discharge current: 40 kA
  • Protection level: 1.25 kV
  • Admissible short-circuit current: 25 000 A


DS41HFS-230 Surge Protectors are designed for primary surge protection AC networks. They provide common-mode protection (between the active conductors and ground). A specific RFI filter is added in order to suppress high frequency disturtances.
DS41HFS-230 is DIN rail compatible and is built with a plug-in module and a fixed base, which allows a easy and fast maintenance.
  • Combine two DS41HFS-230 to get DS42HFS-230 used for 230VAC single phase network (L+N).
  • Combine four DS41HFS-230 to get DS44HFS-230 used for 230/400 VAC 3-phase network (3L+N).


  • SPD type: 2
  • Network: 230/400 V
  • Nominal line voltage Un: 230 Vac
  • Max. AC operating voltage Uc: 255 Vac
  • Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT: 335 Vac withstand
  • Temporary Over Voltage (TOV) Charasteristics - 120 mn UT: 440 Vac disconnection
  • Operating current: Ic < 1 mA
  • Follow current If: None
  • Nominal discharge current In: 20 kA
  • Max. discharge current Imax: 40 kA
  • RFI Filtering: 0.1-30 Mhz
  • Connection mode(s): L/N or N/PE
  • Protection mode(s): Common Mode or Differential Mode
  • Protection level Up: 1.25 kV
  • Max. capacitance C: 0,22 µF
  • Admissible short-circuit current Isccr: 25000 A


  • Technology: MOV+Filter
  • SPD configuration: Single phase
  • Connection to Network: By screw terminals: 2.5-25mm²
  • Format: Plug-in modular box
  • Mounting: Symmetrical rail 35 mm (EN 60715)
  • Housing material: Thermoplastic UL94 V-0
  • Operating temperature: -40/+85°C
  • Protection rating: IP20
  • Failsafe mode: Disconnection from AC network
  • Disconnection indicator: 1 mechanical indicator
  • Spare module(s): DSM40HF-230
  • Remote signaling of disconnection: Output on changeover contact
  • Dimensions: See diagram
  • Weight: 0.103 kg


  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449 ed.5
  • Certification: CSA / EAC


  • Thermal disconnector: Internal
  • Installation ground fault breaker: Type "S" or delayed
  • Fuses: Fuses type gG - 50 A


DS41HFS-230 surge protector is connected in parallel on the AC network and must be equipped with external fuses for short-circuit current protection
  • The total length of parallel connection wires to AC network must be lower than 0.5 m in order not to increase the protection level (Up) provided by the SPD.
  • Wiring is made by screw connections. On some models, a distribution bus can be used.
  • The protection wire coming from the SPD must be connected to the bonding bar of the electrical panel. Paralleling the protection wire with phases conductors must be avoided.
  • The cross sectional wire must be 6 mm² minimum for Type 2 SPD and 16 mm² for Type 1.
  • Local earthing resistance must be in compliance with the electrical rules.
Further information can be found in IEC 61643-12 standard (selection and application principles for low voltage SPD).

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