Type 1+2 AC surge protector - 3-phase+N
DS254E-120/G
DS254E-120/G
Part Number: 3831
  • 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 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 120/208 V 3-phase+N
AC system TT-TNS
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
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 26 kA
Total lightning current Itotal 100 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 1 kV
Admissible short-circuit current Isccr 50000 A
Technology MOV
SPD configuration 3-phase+Neutral
Connection to Network By screw terminals : 6-35 mm² / by bus
Format 1-pole modular box assembled
Mounting Symmetrical rail 35 mm (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -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 UL / EAC / TUV