Citel DAC50-31-275 SPD, type 2, AC, 3P+N, 230/400V
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: 2
Network: 230/400 V 3-phase+N
AC system: TT-TNS
Max. AC operating voltage: 275 Vac
Temporary over voltage (TOV) characteristic - 5 sec.: 335 Vac withstand
Temporary over voltage (TOV)characteristic - 120 mn: 440 Vac disconnection
Temporary over voltage N/PE (TOV HT): 1200 V/300A/200 ms withstand
Residual Current: None
Follow current: None
Nominal discharge current: 20 kA
Max. discharge current: 50 kA
Total Maximal discharge current: Total 50 kA
Protection mode(s): L/N and N/PE
Protection level L/N: 1.25 kV
Residual voltage L/N at 5 kA: 1 kV
Protection level N/PE at 5 k: 1 kV
Admissible short-circuit current: 50 000 A