Type 1+2 AC surge protector - 1-pole
DS250E-400
DS250E-400
Part Number: 3731
  • Type 1 + 2 unipolar surge protector
  • Iimp: 25 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
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The DS250E is an extreme duty Type 1+2 designed to protect the entrance of the electrical installation. The DS250E is a one-pole SPD and can be used in common mode or common and differential mode. DS250E AC surge protectors are designed to be connected in multi-pole configuration to protect single-phase, 3-phase and 3-phase+neutral AC networks. This SPD is DIN rail compatible,
SPD type 1+2
Network 230/400 V
Max. AC operating voltage L-N Uc 440 Vac
Max. load current IL 100 A
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 580 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 770 Vac disconnection
Residual Current Ipe < 3 mA
Follow current If None
Nominal discharge current In 50 kA
Max. discharge current Imax 140 kA
Impulse current by pole Iimp 25 kA
Specific energy by pole W/R 156 kJ/ohm
Connection mode(s) L/N or L/PE
Protection mode(s) Common Mode or Differential Mode
Protection level Up 2.5 kV
Residuel voltage at 5 kA Up-5kA 1.5 kV
Admissible short-circuit current Isccr 50 000 A
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 (DIN 60715)
Housing material Thermoplastic UL94-V0
Operating temperature Tu -40/+85°C
Protection rating IP20
Failsafe mode Disconnection
Disconnection indicator 3 mechanical indicators
Remote signaling of disconnection Output on changeover contact
Dimensions See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification EAC
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed
Fuses Fuses type gG - 315 A