Reference price :
2,050,000 đ
  • Series
  • Model
  • Brand / Made in
  • Compact single-phase Type 2 surge protector
  • Nominal discharge current In: 20 kA
  • Max. discharge current Imax: 40 kA
  • Total Maximum discharge current Imax Total: 80 kA
  • Common/Differential mode
  • Pluggable module
  • Remote signaling option
  • EN 61643-11, IEC 61643-11, UL1449 compliance

CITEL DS240-230/G

The DS240 Type 2 surge protectors are compact devices designed to protect single phase networks at the main switchboard. They provide a common or common / differential mode protection.

This SPD is based on high energy varistor equipped with thermal disconnectors and failure indicator to comply with standards. The DS240 is DIN rail compatible and is built with a plug-in module and fixed base, which allows an easy and fast maintenance.

Remote signaling of disconnection: option DS240S-230/G : output on changeover contact


  • SPD type (following IEC test): 2
  • Network: 230 V single-phase
  • AC system: TT-TN
  • Nominal line voltage Un: 230 Vac
  • Max. AC operating voltage Uc: 255 Vac
  • Max. load current IL: 20 A 
  • Temporary Over Voltage (TOV) Charasteristics - 5 sec UT: 335 Vac withstand
  • Temporary Over Voltage (TOV) Charasteristics - 120 mn UT: 440 Vac disconnection
  • Temporary Over Voltage N/PE (TOV HT) UT: 1200 V/300A/200 ms withstand
  • Residual Current Ipe: none
  • Operating current Ic: 0.5 mA
  • Follow current If: None
  • Nominal discharge current In: 20 kA
  • Max. discharge current Imax: 40 kA
  • Total Maximum discharge current Imax Total: 40 kA
  • Admissible short-circuit current Isccr: 10000 A
  • Protection mode(s): Differential mode
  • Connection mode(s): L/PE and N/PE
  • Protection level @ In (8/20μs) Up: 1.25 kV  
  • Protection level L/N @ In (8/20μs) Up L/N: 1.25 kV 
  • Protection level N/PE @ In (8/20μs) Up L/N: 1.5 kV 
  • Protection level CM/DM @ In (8/20μs) Up mc/md: 1.5/1.25 kV
  • Residuel voltage at 5 kA @ In (8/20μs) Up-5kA: 1.5/0.9 kV
  • Internal short circuit protection: none
  • Internal Thermal protection: yes


  • Technology: MOV+GSG
  • SPD configuration: Single phase
  • Connection to Network: by screw terminals: 1.5-10mm² (L/N) or 2.5-25mm² (PE)
  • Format: Plug-in modular box
  • Mounting: Symmetrical rail 35 mm (EN 60715)
  • Housing material: Thermoplastic UL94 V-0
  • Operating temperature Tu: -40/+85°C
  • Protection rating: IP20
  • Failsafe mode: Disconnection
  • Disconnection indicator: 1 mechanical indicator 
  • Spare module(s): DSM240-230/G
  • Remote signaling of disconnection: option DS42S-280 : 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 / UL1449 ed.4
  • Certification: UL / CSA /EAC / TUV SUD


DS240-230/G Type 2 AC surge protector - single phase are 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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