1-pole Type 1 and Type 2 SPD for 48 Vdc

Part Number 322101
  • 2-poles surge protector 48 Vdc
  • Type 1 et Type 2
  • In 30 kA / Imax 70 kA
  • Remote signaling
  • Iimp 7 kA
  • Pluggable Module
  • IEC 61643-11 and EN61643-11 compliance

DS70R-48DC surge protectors are designed to protect equipment connected to DC (and AC) power supplies from lightning surges.

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SPD type
48 Vdc
Nominal line voltage
Un 48 Vdc
Nominal DC voltage
Un-dc 48 Vdc
Max. DC operating voltage
Uc 65 Vdc
Residual Current
Leakage current to Ground
Ipe < 0.1 mA
Operating current
Continious current at Uc
Ic < 0.1 mA
Follow current
If None
Nominal discharge current
15 x 8/20 µs impulses
In 30 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
Imax 70 kA
Impulse current by pole
max. withstand 10/350µs by pole
Iimp 7 kA
Total lightning current
max. total withstand @ 10/350µs
Itotal 14 kA
Connection mode(s)
+/PE and -/PE
SPD configuration
Single phase
Connection to Network
By screw terminals: 4-25mm²
Plug-in modular box
Symmetrical rail 35 mm (EN 60715)
Housing material
Thermoplastic UL94 V-0
Operating temperature
Tu -40/+85°C
Protection rating
Failsafe mode
Disconnection from DC network
Disconnection indicator
1 mechanical indicator
Spare module(s)
Remote signaling of disconnection
DS71RS-48DC option : output on changeover contact
See diagram
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Thermal disconnector
Back-up protection device
100 A min. - 125 A max. - Fuses type gG