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  • Series
    DAC50
  • Model
    DAC50-20-275
  • Brand / Made in
    CITEL / FRANCE
  • Description: Type 2 AC surge protector - Single-phase
  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449 ed.5
  • Certification: OVE / UL / EAC
  • Technology: MOV
  • SPD configuration: Single phase
  • Remote signaling of disconnection: option DAC50S-20-275: output on changeover contact
  • Network: 230 V single-phase
  • AC system: TN
  • Max. AC operating voltage : 275 Vac
  • Residual Current : < 1 mA
  • Max. discharge current : 50 kA
  • Total Maximum discharge current : 100 kA
  • Admissible short-circuit current: 50 000 A

The pluggable surge protectors Type 2 DAC50, are designed to protect AC powerline at the main switchboard of the installation. These SPDs are based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards and to provide a maximum protection efficiency, an high impulse current capability and a improved reliability. The surge protectors DAC50 are available in multipolar version and in several voltages to protect single or 3-phase networks.

ELECTRICAL PROPERTIES

  • SPD type: 2
  • 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: < 1 mA
  • Follow current If: None
  • Nominal discharge current In: 20 kA
  • Max. discharge current Imax: 50 kA
  • Total Maximum discharge current Imax Total: 100 kA
  • Protection mode(s): L/PE and N/PE
  • Protection level N/PE Up N/PE: 1.25 kV
  • Protection level L/PE Up L/PE: 1.25 kV
  • Protection level N/PE at 5 kA Up-5kA: 1 kV
  • Residual voltage L/PE at 5 kA Up-5kA: 1 kV
  • Admissible short-circuit current Isccr: 50 000 A  

MECHANICAL PROPERTIES

  • Technology: MOV
  • 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): MDAC50-275
  • Remote signaling of disconnection: option DAC50S-20-275 : output on changeover contact
  • Dimensions: See diagram - 2TE (EN43880)
  • Weight: 0.201 kg

NORMS

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

DECONNECTOR

  • Thermal disconnector: Internal
  • Installation ground fault breaker: Type S or delayed
  • Fuses: 50 A min. - 125 A max. - Fuses Type gG

INSTALLATION

DAC50-20-275 Type 2 AC surge protector - single phase ar 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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