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  • Series
  • Model
  • Brand / Made in
  • Description: Type 1+2 AC surge protector - 3-phase
  • Network: 400/690 V
  • Max. AC operating voltage: 760 Vac
  • SPD configuration: 3+1-Y diagram
  • Technology: MOV
  • Internal disconnection, status indicator
  • Remote signaling of disconnection: Output on changeover contact
  • Residual Current: None
  • Max. discharge current: 140 kA/pole
  • Impulse current by pole: 25 kA/pole
  • Admissible short-circuit current: 50 000 A
  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449
  • Certification: EAC


The DS253E-690/WD AC surge protector is designed for 3-phase 690VAC and mainly use for wind generator networks. The MOV technology allows a very low level of protection and an absence of following current. The DS253E-690/WD is mounted on a DIN Rail and has a double connection for the active conductor, which allows an optimized connection to the network. 

Electrical Characteristics

  • SPD type: 1+2
  • Network: 400/690 V 
  • Nominal line voltage Un: 690 Vac
  • Max. AC operating voltage Uc: 760 Vac
  • Temporary Over Voltage (TOV) Charasteristics - 5 sec (Without disconnection) UT: 1160 Vac withstand
  • Temporary Over Voltage (TOV) Charasteristics - 120 mn (Without disconnection or with safety disconnection) UT: 1540 Vac withstand
  • Residual Current Leakage current to Ground Ipe: None
  • Follow current If: None
  • Nominal discharge current (15 x 8/20 µs impulses) In: 35 kA
  • Max. discharge current (max. withstand @ 8/20 µs by pole) Imax: 140 kA
  • Impulse current by pole (max. withstand 10/350µs by pole) Iimp: 25 kA
  • Specific energy by pole max. withstand 10/350 µs W/R: 156 kJ/ohm
  • Connection mode(s): L/PE
  • Protection mode(s): Common or Differential mode
  • Protection level L/PE @ In (8/20μs) Up L/PE: 3 kV
  • Admissible short-circuit current Isccr: 50000 A

Mechanical Characteristics

  • Technology: MOV
  • SPD configuration: 3+1-Y diagram
  • Connection to Network: By screw : 6-35 mm² (50mm² flexible)
  • Format: 1-pole modular box 
  • Mounting: Symmetrical rail 35 mm (EN60715)
  • Housing material: Thermoplastic UL94-V0
  • Operating temperature: -40/+85°C
  • Protection rating: IP20
  • Failsafe behavior: Disconnection from AC network
  • Disconnection indicator: 4 mechanical indicator
  • Remote signaling of disconnection: Output on changeover contact


  • Thermal disconnector: Internal
  • Installation ground fault breaker: Type S or delayed
  • Fuses: Fuses Type gG - 125 A


  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449
  • Certification: EAC


DS253E-690/WD Type 1+2 AC surge protector - 4 pole 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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