2-Pole 450 Vdc surge protector
Part Number: 42287132
  • Type 2 SPD for DC power
  • VG technology
  • In 10 kA / Imax 40 kA
  • Pluggable module
  • LeakAge and operating currents : none
  • No ageing
  • Remote signaling status
  • Conforme EN 61643-11, CEI 61643-11
Installation Sheet

DS42VGS-450DC surge protector is designed to protect equipment connected to DC power supplies from lightning surges.

SPD type
following IEC test
400 Vdc
Nominal line voltage
400 Vdc
Max. DC operating voltage
450 Vdc
Operating current
Continious current at Uc
Follow current
Nominal discharge current
15 x 8/20 µs impulses
10 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
40 kA
Withstand on Combinaison waveform IEC 61643-11
Class III test: 1.2/50µs - 8/20µs
6 kV
Connection mode(s)
+/PE and -/PE
Protection mode(s)
Common mode
Protection level
@ In (8/20µs)
1.5 / 2.5 kV
Residual voltage
@ In (8/20 µs)
0.7/1.5 kV
Technology VG
SPD configuration 2 poles
Connection to Network by screw 2.5-25 mm²/by bus
Plug-in modular box
Symmetrical rail 35 mm (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+58°C
Protection rating IP20
Failsafe behavior Disconnection
Disconnection indicator 1 mechanical indicator by pole
Spare module(s)
Remote signaling of disconnection
Output on changeover contact
See diagram
Standards compliance
IEC 61643-11 / EN 61643-11
Thermal disconnector Internal
Fuses type gG - 50 A