Type 1+2 AC surge protector single-phase
DS252E-120
DS252E-120
Part Number: 3951
  • Type 1 + 2 unipolar surge protector
  • Iimp total: 50 kA (10/350µs импульс)
  • Imax : 140 kA (8/20µs импульс)
  • Внутренний размыкатель сети, индикатор состояния
  • Дистанционная сигнализация
  • Соответствуют IEC 61643-11, EN 61643-11 и UL1449 ed.4
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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 120 V single-phase
AC system TN
Nominal line voltage Un 120 Vac
Max. AC operating voltage L-N Uc 150 Vac
Max. load current IL 100 A
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 180 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 230 Vac disconnection
Residual Current Ipe < 4 mA
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/PE and N/PE
Protection mode(s) Common mode
Protection level N/PE Up N/PE 1 kV
Protection level L/PE Up L/PE 1 kV
Admissible short-circuit current Isccr 50000 A
Technology MOV
SPD configuration Single phase
Connection to Network By screw terminals : 6-35 mm² / by bus
Format 1-pole modular box assembled
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 by pole
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