Type 1+2+3 AC surge protector - 3-phase+N
DUT250VG-300/TT
DUT250VG-300/TT
Part Number: 3582
  • Type 1+2+3, 3-phase surge protector
  • Common and differential mode
  • Very compact monobloc enclosure
  • Iimp by pole/total : 25kA
  • Internal disconnection, status indicator
  • Optimized to TOV
  • EN 61643-11, IEC 61643-11 and UL1449 ed.4 compliance

The DUT250VG is a compact and heavy duty Type 1+2+3 SPD, designed to be connected at the entrance of the electrical installation, on a 3-phase 230/400 V AC network. The Spark gap + Varistor technology allows a very low level of protection and an absence of following current. The DUT250VG is a 3-phase SPD and provides a common and differential mode protection. This SPD is built in a compact enclosure for DIN rail mounting.


SPD type 1+2+3
Network 230/400 V 3-phase+N
AC system TT-TNS
Nominal line voltage Un 230/400 Vac
Max. AC operating voltage L-N Uc 255 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 440 Vac withstand
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 40 kA
Max. discharge current Imax 100 kA
Impulse current by pole Iimp 25 kA
Total lightning current Itotal 50 kA
Withstand on Combination waveform IEC 61643-11 Uoc 6 kV
Withstand on overvoltages IEEE C62.41.1 20 kV
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 Up 1.5 kV
Residual voltage Up-in 1.1 kV
Protection level L/N Up L/N 1.5 kV
Protection level L/PE Up L/PE 1.5 kV
Admissible short-circuit current Isccr 50 000 A
Technology VG
SPD configuration 3- phase+Neutral
Connection to Network By screw terminals : 6-35 mm² / by bus
Format Multipolar modular box
Mounting Symmetrical rail 35 mm (DIN 60715)
Housing material Thermoplastic UL94-V0
Operating temperature Tu -40/+85°C
Protection rating IP20
Disconnection indicator LED indicators
Remote signaling of disconnection Output on changeover contact
Dimensions See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification UL / EAC / TUV
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed
Fuses Fuses type gG - 315 A