Type 2 AC surge protector - Single-phase

DAC50S-20-275
Part Number 821110222
DAC50S-20-275
  • Type 2 AC surge protector
  • In: 20 kA
  • Imax: 50 kA
  • Pluggable module for each phase
  • Remote signaling
  • UL1449 ed.5 certified
  • EN 61643-11, IEC 61643-11 compliance
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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, a high impulse current capability and an 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 V single-phase
AC system
 TN
Max. AC operating voltage
Uc 275 Vac
Temporary Over Voltage (TOV) Characteristics - 5 sec.
Without disconnection
 UT 335 Vac withstand
Temporary Over Voltage (TOV) Characteristics - 120 mn
Without disconnection or with safety disconnection
 UT 440 Vac disconnection
Residual Current
Leakage current to Ground
 Ipe < 1 mA
Follow current
If None
Nominal discharge current
15 x 8/20 µs impulses
 In 20 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
 Imax 50 kA
Total Maximum discharge current
max. total withstand @ 8/20 µs
Imax Total 100 kA
Protection mode(s)
 L/PE and N/PE
Protection level N/PE
@ In (8/20µs)
 Up N/PE 1.25 kV
Protection level L/PE
@ In (8/20µs)
 Up L/PE 1.25 kV
Protection level N/PE at 5 kA
@ 5 kA (8/20µs)
 Up-5kA 1 kV
Residual voltage L/PE at 5 kA
@ 5 kA (8/20µs)
 Up-5kA 1 kV
Admissible short-circuit current
 Isccr 50 000 A
Network type
 AC
Technology
 MOV
SPD configuration
 Single phase
Connection to Network
 By screw terminals: 2.5-25mm²
Format
 Plug-in modular box
Plugable
 Yes
Mounting
 Symmetrical rail 35 mm (EN 60715)
Housing material
 Thermoplastic UL94 V-0
Operating temperature
 Tu -40/+85°C
Protection rating
 IP20
Failsafe mode
 Disconnection from AC network
Disconnection indicator
 1 mechanical indicator by pole - Red/Green
Spare module(s)
 MDAC50-275
Remote signaling of disconnection
 output on changeover contact
Wiring for remote signaling
 1.5 mm² max.
Max. Voltage/Current for remote signaling
 250 V / 0.5 A (AC) / 30 V / 3 A (DC)
Dimensions
 See diagram - 2TE (EN43880)
Standards compliance
 IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Certification
 OVE / UL
Thermal disconnector
 Internal
Installation ground fault breaker
 Type 'S' or delayed
Back-up protection device
50 A min. - 125 A max. - Fuses Type gG