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  • Series
  • Model
  • Brand / Made in
  • Surge protector for DC supplies
  • 48 Vdc
  • Imax : 2 kA
  • Pluggable module
  • Operating indicator
  • IEC 61643-11, EN 61643-11 y UL1449 ed.4
DS210-48DC surge protectors are designed to protect equipment connected to DC (and AC) power supplies from lightning surges. It is based on varistors matched to the network voltage: the varistors have thermal disconnection devices to control any end-of-life.These DIN rail SPD are connected in parallel to the equipment being protected.


  • SPD type: 2
  • Network: DC network 48Vdc
  • Nominal line voltage: 48 Vdc
  • Nominal DC voltage Un-dc: 48 Vdc
  • Max. AC operating voltage Uc: 40 Vac
  • Max. DC operating voltage Uc: 56 Vdc
  • Max. load current IL: 20 A
  • Residual Current Ipe: < 0.1 mA
  • Operating current Ic: < 0.1 mA
  • PV Permanent Operating current Icpv: < 0.1 mA
  • Follow current If: None
  • Nominal discharge current In: 2 kA
  • Max. discharge current Imax: 6 kA
  • Total Maximum discharge current Imax Total: 2 kA
  • Current withstand short circuit PV Iscpv: 1000 A
  • Connection mode(s): +/-/PE
  • Protection mode(s): Common/Differential mode
  • Protection level +/PE (-/PE) Up: 180 V


  • Technology: MOV
  • SPD configuration: 2-poles
  • Connection to Network: By screw terminals: 1.5-10mm² (actives wires) and 2.5-25mm² (ground)
  • 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
  • Outdoor application: No
  • Failsafe mode: Disconnection from DC network
  • Disconnection indicator: Green LED(s) OFF
  • Spare module(s): DSM210-48DC
  • Dimensions: See diagram


  • Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449 ed.4


  • Thermal disconnector: Internal
  • Fuses: Fuses type gG - 10A


DS210-48DC surge protectors are connected in parallel on the DC network and must be equipped with external fuses for short-circuit current protection

  • The total length of parallel connection wires to DC 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.
  • Local earthing resistance must be in compliance with the electrical rules.


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