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  • Description: Type 2 AC surge protector -  1 pole - pluggable
  • Network: 1000Vac
  • Max. AC operating voltage: 1100 Vac
  • Technology: MOV
  • Remote signaling of disconnection: option DS41S-1000: output on changeover contact
  • Residual Current: < 0.5mA
  • Max. discharge current: 40 kA
  • Admissible short-circuit current: 25000 A
  • Standards compliance: IEC 61643-11 / EN 61643-11 
  • Certification: EAC

DS41-1000 Type 2 1000VAC surge protector - 1 pole

The DS41-1000 surge protectors is designed to be used in a multipolar configuration to protect single-phase, 3-phase or 3-phase+neutral 1000 VAC networks, are used mainly for primary protection at the main electrical panel. 

DS41-1000 impulse discharge capability classifies this SPD as regular Type 2, useful in case of medium lightning density areas. IEC60364 standard requests Type 2 SPD at the entrance of installation.

This SPD is based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards. Version with a remote signaling for disconnection indication is also available (DS41S-1000).
This SPD is DIN rail compatible and is built with a plug-in module (DSM40-1000) and a fixed base, which allows an easy and fast maintenance.


  • SPD type: 2
  • Network: 1000 Vac
  • Nominal line voltage Un: 1000 Vac
  • Max. AC operating voltage L-N Uc: 1100 Vac
  • Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT: 1400 Vac withstand
  • Temporary Over Voltage (TOV) Charasteristics - 120 mn UT: 1840 Vac disconnection
  • Residual Current (Leakage current to Ground) Ipe: < 0.5mA
  • Operating current Ic: 0.5 mA
  • Follow current If: none
  • Nominal discharge current In: 20 kA
  • Max. discharge current Imax: 40 kA
  • Admissible short-circuit current Isccr: 25000 A
  • Connection mode(s): L/PE
  • Protection mode(s): Common Mode 
  • Protection level Up: 5 kV


  • Technology: MOV
  • SPD configuration: 1-pole
  • Connection to Network: By screw terminals: 2.5-25mm² / by bus
  • 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): DSM40-1000
  • Remote signaling of disconnection: option DS41S-1000 : output on changeover contact


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


  • Standards compliance: IEC 61643-11 / EN 61643-11
  • Certification: EAC


DS41-1000 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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