DC power surge protector - 75 Vdc
DS240-75DC
DS240-75DC
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 2
Network DC or PV network 75Vdc
Nominal DC voltage Un-dc 75 Vdc
Nominal PV voltage Uocstc 75 Vdc
Max. AC operating voltage L-N Uc 75 Vac
Max. PV operating voltage Ucpv 100 Vdc
Max. DC operating voltage Uc 100 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 20 kA
Max. discharge current Imax 40 kA
Total Maximal discharge current Imax Total 80 kA
Current withstand short circuit PV Iscpv 1000 A
Connection mode(s) +/-/PE
Protection mode(s) Common mode
Protection level +/PE (-/PE) Up 390 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
Failsafe mode disconnection from DC line
Disconnection indicator 2 mechanical indicators
Spare module(s) DSM240-75DC
Remote signaling of disconnection Option DS240S-75DC : output on changeover contact
Dimensions See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 ed.4
Certification UL / EAC