DC power surge protector - 75 Vdc
Part Number: 310601
  • DC or PV power surge protector
  • 75 Vdc
  • Compact design
  • Imax : 40 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.

SPD type
following IEC test
DC or PV network 75Vdc
Nominal DC voltage
75 Vdc
Nominal PV voltage
75 Vdc
Max. AC operating voltage L-N
75 Vac
Max. PV operating voltage
100 Vdc
Max. DC operating voltage
100 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
20 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
40 kA
Total Maximal discharge current
max. total withstand @ 8/20 µs
80 kA
Current withstand short circuit PV
1000 A
Connection mode(s)
Protection mode(s)
Common mode
Protection level
@ In (8/20µs)
390 V
Protection level L/PE
@ In (8/20µs)
390 V
Residual Voltage at 3 kA
@ 8/20µs
280 V
Technology MOV
SPD configuration 2 poles
Connection to Network By screw terminals: 1.5-10mm² (actives wires) and 2.5-25mm² (ground)
Plug-in modular box
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 DS240S-75DC : output on changeover contact
See diagram
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 ed.4
Fuses type gG - 50 A
Thermal disconnector internal