Type 1+2 AC surge protector - 1-pole
Part Number: 3957
  • Type 1+2+3 surge protector
  • For 400/690 V network
  • In : 30 kA
  • Iimp : 25 kA
  • Low voltage Up
  • Internal disconnection, status indicator
  • Remote signaling
  • IEC 61643-11, EN 61643-11 and UL1449 ed3 compliance
Installation Sheet

The DS250VG-690 AC surge protector is designed for 3-phase 690VAC and mainly use for wind generator networks,

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SPD type
following IEC test
400/690 V 3-phase
AC system
Nominal line voltage
690 Vac
Max. AC operating voltage L-N
760 Vac
Max. load current
100 A
Temporary Over Voltage (TOV) Charasteristics - 5 sec.
without disconnection
1050 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
without disconnection or with safety disconnection
1350 Vac withstand
Residual Current
Leakage current to Ground
Follow current
Nominal discharge current
15 x 8/20 µs impulses
30 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
100 kA
Impulse current by pole
max. withstand 10/350µs by pole
25 kA
Total lightning current
max. total withstand @ 10/350µs
75 kA
Withstand on Combinaison waveform IEC 61643-11
Class III test: 1.2/50µs - 8/20µs
6 kV
Withstand on overvoltages IEEE C62.41.1
20 kV
Admissible short-circuit current
50000 A
Connection mode(s)
Protection mode(s)
Common mode
Protection level
@ In (8/20µs)
4 kV
Residual voltage
@ In (8/20 µs)
4 kV
Protection level L/PE
@ In (8/20µs)
4 kV
Specific energy by pole
max. withstand 10/350 µs
156 kJ/ohm
Technology VG
SPD configuration 3-phase
Connection to Network By screw : 6-35 mm² (50mm² flexible)
1-pole modular box assembled
Symmetrical rail 35 mm (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Failsafe behavior Disconnection
Disconnection indicator 1 mechanical indicator by pole
Remote signaling of disconnection
Output on changeover contact
See diagram
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed
Fuses type gG - 315 A