Type 1+2 AC surge protector - 1-pole
Part Number: 3964
  • Type 1+2 unipolar AC surge protector
  • Iimp : 50 kA on 10/350µs impulse
  • Imax : 200 kA on 8/20µs impulse
  • Internal disconnecctions, status indicator and remote signaling
  • IEC 61643-11 and EN 61643-11
Installation Sheet

The DS500E is a SPD with a very high impulse discharge current (Iimp) of 50 kA, based on multi-varistor technology. A such high value could be required in the worse-case conditions (200 kA direct strike on installation equipped with single phase or 3-phase AC network).

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SPD type
following IEC test
230/400 V
Nominal line voltage
400 Vac
Max. AC operating voltage L-N
440 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec.
without disconnection
580 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
without disconnection or with safety disconnection
770 Vac disconnection
Operating current
Continious current at Uc
< 3 mA
Follow current
Nominal discharge current
15 x 8/20 µs impulses
50 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
200 kA
Impulse current by pole
max. withstand 10/350µs by pole
50 kA
Admissible short-circuit current
50000 A
Connection mode(s)
L/N and L/PE
Protection level
@ In (8/20µs)
2.2 kV
Specific energy by pole
max. withstand 10/350 µs
625 kJ/ohm
Technology MOV
Connection to Network By screw terminals : 6-35 mm²
1-pole modular box
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
Remote signaling of disconnection
Output on changeover contact
See diagram
Standards compliance
IEC 61643-11 / EN 61643-11
Thermal disconnector Internal
Fuses Type gG - 500 A
Installation ground fault breaker Type 'S' or delayed