Type 1+2 AC surge protector 3-phase
Part Number: 3965
  • Type 1 + 2 unipolar surge protector
  • Iimp total: 100 kA on 10/350µs impulse
  • Imax : 140 kA on 8/20µs impulse
  • Internal disconnections, status indicators
  • Remote signaling
  • IEC 61643-11, EN 61643-11 and UL1449 ed.4 compliance
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 3-phase
AC system
Nominal line voltage
400 Vac
Max. AC operating voltage L-N
440 Vac
Max. load current
100 A (si connexion série)
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
Total lightning current
max. total withstand @ 10/350µs
150 kA
Admissible short-circuit current
50000 A
Connection mode(s)
Protection mode(s)
Common mode
Protection level L/PE
@ In (8/20µs)
2.2 kV
Specific energy by pole
max. withstand 10/350 µs
156 kJ/ohm
Technology MOV
SPD configuration 3-phase
Connection to Network By screw terminals : 6-35 mm² / by bus
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 - 500 A