1-pole Type 1 and Type 2 SPD for 48 Vdc
Part Number: 63909
  • 1-pole surge protector 48 Vdc
  • Type 1 and Type 2 application
  • In 25 kA / Imax 70 kA
  • Remote signaling
  • Iimp 25 kA
  • IEC 61643-11 and EN61643-11 compliance
Installation Sheet

DS250E-48DC surge protectors are designed to protect equipment connected to DC power supplies from lightning surges

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SPD type
following IEC test
48 Vdc
Nominal line voltage
48 Vdc
Nominal DC voltage
48 Vdc
Max. DC operating voltage 75 Vdc
Operating current
Continious current at Uc
< 0.1 mA
Follow current
Nominal discharge current
15 x 8/20 µs impulses
25 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
70 kA
Total Maximal discharge current
max. total withstand @ 8/20 µs
140 kA
Impulse current by pole
max. withstand 10/350µs by pole
25 kA
Connection mode(s)
+/PE or -/PE
Protection mode(s)
Common mode
Protection level
@ In (8/20µs)
0.5 kV
Specific energy by pole
max. withstand 10/350 µs
156 kJ/ohm
Technology MOV
SPD configuration 1-pole
Connection to Network By screw terminals : 6-35 mm² / by bus
Format 1-pole 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 1 mechanical indicator
Remote signaling of disconnection Output on changeover contact
See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification EAC
Thermal disconnector Internal
Fuses type gG - 315 A