DC power surge protector - 48 Vdc
Part Number: 390401
  • DC or PV power surge protector
  • 48 Vdc
  • Compact design
  • Imax: 30 kA
  • Pluggable module
  • Remote signaling (option)
  • Very low Up protection level

DS210-DC 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 SPD are DIN rail compatible and is connected in parallel on the line to be protected.

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SPD type
following IEC test
DC or PV network 48Vdc
Nominal DC voltage
48 Vdc
Nominal PV voltage
48 Vdc
Max. AC operating voltage L-N 50 Vac
Max. PV operating voltage
65 Vdc
Max. DC operating voltage 65 Vdc
Max. load current
20 A
Residual Current
Leakage current to Ground
< 0.1 mA
Operating current
Continious current at Uc
< 0.1 mA
PV Permanent Operating current
Current consumption at Ucpv
< 0.1 mA
Follow current
Nominal discharge current
15 x 8/20 µs impulses
15 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
30 kA
Total Maximal discharge current
max. total withstand @ 8/20 µs
60 kA
Current withstand short circuit PV
1000 A
Connection mode(s)
Protection mode(s)
Common mode
Protection level
@ In (8/20µs)
300 V
Protection level L/PE
@ In (8/20µs)
300 V
Residual Voltage at 3 kA
@ 8/20µs
230 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 (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Outdoor application
Failsafe behavior disconnection from DC line
Disconnection indicator 2 mechanical indicators
Spare module(s)
Remote signaling of disconnection Option DS230S-48DC : output on changeover contact
See diagram
Certification UL
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 ed.4 / EN 50539-11
Thermal disconnector internal
Fuses type gG - 50 A