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 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
IEC

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
Certification

UL Recognized
Thermal disconnector

Internal
Installation ground fault breaker

Type 'S' or delayed
Back-up protection device

50 A min. - 125 A max. - Fuses Type gG