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Type 2 AC surge protector - 3-phase

DAC50S-31Y-880
Part Number 821151044
DAC50S-31Y-880
  • Type 2 AC surge protector
  • In : 20 kA
  • Imax : 50 kA
  • Pluggable module for each phase
  • Remote signaling
  • EN 61643-11, IEC 61643-11 and UL1449 ed.5 compliance

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
Equal or less than 800 Vac
AC system
TNC-IT
Max. AC operating voltage
Uc 880 Vac
Temporary Over Voltage (TOV) Characteristics - 5 sec.
Without disconnection
UT 1160 Vac withstand
Temporary Over Voltage (TOV) Characteristics - 120 mn
Without disconnection or with safety disconnection
UT 1385 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
Protection level
@ In (8/20µs)
Up 4.0 kV
Admissible short-circuit current
Isccr 50 000 A
Network type
AC
Technology
MOV
SPD configuration
3-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-Y-880
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 / 2 A (DC)
Dimensions
See diagram - 4TE (EN43880)
Weight
0.410 kg
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Thermal disconnector
Internal
Installation ground fault breaker
Type 'S' or delayed
Back-up protection device
50 A min. - 160 A max. - Fuses Type gG