Type 1+2 AC surge protector single-phase

DS252E-300/G
Part Number: 3404
DS252E-300/G
  • Type 1 + 2 unipolar surge protector
  • Iimp total: 50 kA (10/350µs impulse)
  • Imax: 140 kA (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. They are used to protect biphase, 3-phase or 3-phase + neutral networks in common mode or in common and differential mode. The 'Multi-Varistor' technology used allows the best possible behavior for the LV network (no follow-on current). The DS250E is mounted on a DIN Rail and has a double connection for the active conductor, which allows an optimized connection to the network.
SPD type 1+2
Network 230 V single-phase
AC system TT-TN
Nominal line voltage Un 230/400 Vac
Max. AC operating voltage Uc 330 Vac
Max. load current IL 100 A
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 440 Vac disconnection
Temporary Over Voltage N/PE (TOV HT) UT 1200 V/300A/200 ms withstand
Residual Current Ipe None
Follow current If None
Nominal discharge current In 70 kA
Max. discharge current Imax 140 kA
Impulse current by pole Iimp 25 kA
Total lightning current Itotal 50 kA
Specific energy by pole W/R 156 kJ/ohm
Connection mode(s) L/N and N/PE
Protection mode(s) Common/Differential mode
Protection level L/N Up L/N 2.5 kV
Admissible short-circuit current Isccr 50 000 A
Technology MOV
SPD configuration Single phase
Connection to Network By screw terminals: 6-35mm² / by bus
Format 1-pole modular box assembled
Mounting Symmetrical rail 35 mm (EN 60715)
Housing material Thermoplastic UL94 V-0
Operating temperature Tu -40/+85°C
Protection rating IP20
Failsafe mode Disconnection from AC network
Disconnection indicator 3 mechanical indicators by pole
Remote signaling of disconnection Output on changeover contact
Dimensions See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 ed.4
Certification EAC
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed
Fuses Fuse assembly: SFD1-25-11S / or Fuses Type gG 315 A