Type 2 AC surge protector - 3-phase+N
DAC50-31-275
DAC50-31-275
Part Number: 821110234
  • Type 2 AC surge protector
  • In : 20 kA
  • Imax : 50 kA
  • Pluggable module for each phase
  • Remote signaling option
  • NF EN 61643-11, CEI 61643-11 compliance
Installation Sheet

The pluggable surge protectors Type 2 DAC50, are designed to protect AC powerline at the main switchboard of the installation.

These SPDs are based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards and to provide a maximum protection efficiency, an high impulse current capability and a improved reliability.

The surge protectors DAC50 are available in multipolar version and in several voltages to protect single or 3-phase networks.



SPD type
follow test IEC 61643-11
2
Network
230/400 V 3-phase+N
AC system
TT-TNS
Max. AC operating voltage L-N 275 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec.
without disconnection
335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
without disconnection or with safety disconnection
440 Vac disconnection
Temporary Over Voltage N/PE (TOV HT)
without disconnection or with safety disconnection
1200 V/300A/200 ms withstand
Operating current
Continious current at Uc
none
Follow current
none
Nominal discharge current
15 x 8/20 µs impulses
20 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
50 kA
Total Maximal discharge current
max. total withstand @ 8/20 µs
50 kA
Admissible short-circuit current 50000 A
Connection mode L/N and N/PE
Protection mode(s)
Commun/Differential mode
Protection level L/N
@ In (8/20µs)
1.25 kV
Protection level N/PE
@ In (8/20µs)
1.5 kV
Residual voltage at 10 kA
@ 8/20µs
1.1 kV
Residuel voltage at 5 kA
@ 8/20µs
0.9 kV
 
Technology MOV+GDT
SPD configuration 3-phase+Neutral
Connection to Network By screw terminals: 2.5-25 mm² / by bus
Format Plug-in modular box
Mounting Symmetrical rail 35 mm (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Outdoor application
False
Failsafe behavior Disconnection
Disconnection indicator 1 mechanical indicator by pole
Spare module MDAC50-275+MDACG-275
Remote signaling of disconnection option DAC50S-31-275: output on changeover contact
Dimensions
see diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification OVE
Thermal disconnector internal
Installation ground fault breaker Type 'S' or delayed
Fuses
Fuses type gG - 50 A