• Series
  • Model
  • Brand / Made in
  • Description: Type 2+3 AC surge protector - Single-phase
  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449 ed.5
  • Certification: KEMA / EAC
  • Technology: VG Technology (MOV+GSG)
  • SPD configuration: Single phase
  • Remote signaling of disconnection: option DAC50VGS-20-275 : output on changeover contact
  • Network: 230 V single-phase
  • AC system: TN
  • Max. AC operating voltage : 275 Vac
  • Residual Current : None
  • Max. discharge current : 50 kA
  • Total Maximum discharge current : 100 kA
  • Admissible short-circuit current: 50 000 A

DAC50VG series Type 2+3 AC surge protector

The pluggable surge protectors Type 2+3 DAC50VG, are designed to protect AC powerline at the main switchboard of the installation.
Equipped with the exclusive CITEL’s VG technology, the range achieves an improved protection level and a total absence of leakage current, guaranteeing a maximum protection efficiency, a simplification of use (no additional SPD required) and a maximum lifetime.
The surge protectors DAC50VG, are available in multipolar version and in several voltages to protect single or 3-phase networks.




  • SPD type: 2+3
  • Network: 230V single phase
  • AC system: TN
  • Max. AC operating voltage Uc: 275 Vac
  • Temporary Over Voltage (TOV) Charasteristics - 5 sec UT: 335 Vac withstand
  • Temporary Over Voltage (TOV) Charasteristics - 120 mn UT: 440 Vac disconnection
  • Residual Current Ipe: None
  • Follow current If: None
  • Nominal discharge current In: 20 kA
  • Max. discharge current Imax: 50 kA
  • Total Maximum discharge current Imax Total: 100 kA
  • Withstand on Combination waveform IEC 61643-11 Uoc: 6 kV
  • Protection mode(s): L/PE and N/PE
  • Protection level N/PE Up N/PE: 1.5 kV
  • Protection level L/PE Up L/PE: 1.5 kV
  • Protection level N/PE at 5 kA Up-5kA: 0.7 kV
  • Residual voltage L/PE at 5 kA Up-5kA: 0.7 kV
  • Admissible short-circuit current Isccr: 50 000 A  


  • Technology: VG Technology (MOV+GSG)
  • SPD configuration: Single phase
  • Connection to Network: By screw terminals: 2.5-25mm² (35mm² rigid)
  • Format: Plug-in modular box
  • Plugable: Yes
  • 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 from AC network
  • Disconnection indicator: 1 mechanical indicator by pole - Red/Green
  • Spare module(s): MDAC50VG-275
  • Remote signaling of disconnection: option DAC50VGS-20-275 : output on changeover contact
  • Dimensions: See diagram - 2TE (EN43880)
  • Weight: 0.198 kg


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


  • Thermal disconnector: Internal
  • Installation ground fault breaker: Type S or delayed
  • Fuses: 50 A min. - 160 A max. - Fuses Type gG


DAC50VG-20-275 Type 2+3 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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