1-Pole 48 Vdc surge protector
Part Number: 332121
  • 1-pole 48 Vdc surge protector
  • In 15 kA / Imax 30 kA
  • Pluggable module
  • Remote signaling
  • IEC 61643-11 and EN 61643-11 compliance
  • UL1449 ed.4 approved

DS4xS-48DC surge protectors are designed to protect equipment connected to DC power supplies from lightning surges.

SPD type
following IEC test
1 ou 2
48 Vdc
Nominal line voltage
48 Vdc
Nominal DC voltage
48 Vdc
Max. DC operating voltage 65 Vdc
Operating current
Continious current at Uc
< 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
Impulse current by pole
max. withstand 10/350µs by pole
4 kA
Connection mode(s)
+/PE or -/PE
Protection mode(s)
Common mode
Protection level
@ In (8/20µs)
300 V
Technology MOV
SPD configuration 1-pole
Connection to Network by screw terminals: 4-25 mm²
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
Disconnection indicator 2 mechanical indicators
Spare module(s)
Remote signaling of disconnection Output on changeover contact
See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification UL / EAC
Thermal disconnector Internal
Fuses type gG - 50 A