Type 2 AC surge protector - 3-phase+N - Integrated fuses

DACF25S-31-440
Part Number 821410444
DACF25S-31-440

Type 2 AC surge protector

  • In: 15 kA
  • Imax: 25 kA
  • Interne Disconnection device
  • Pluggable module for each phase
  • Remote signaling
  • EN 61643-11, IEC 61643-11 and UL1449 ed.5 compliance
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Type 2 DACF25 SPDs are used mainly for primary surge protection of single and 3-phase AC networks at the main switchboard. In addition to their thermal disconnector, the range is equipped with an internal fuse against short-circuit currents, which avoids the use of an external fuse or circuit-breaker as requested by standard. The operation of one of the both disconnectors will activate the indicator and the remote signalling (option). This compact solution simplifies the implementation and minimum space. The DACF25 surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase.
SPD type
IEC 2
Network
 230/400 V 3-phase+N
AC system
 IT
Max. AC operating voltage
Uc 440 Vac
Temporary Over Voltage (TOV) Characteristics - 5 sec.
Without disconnection
 UT 580 Vac withstand
Temporary Over Voltage (TOV) Characteristics - 120 mn
Without disconnection or with safety disconnection
 UT 770 Vac disconnection
Temporary Over Voltage N/PE (TOV HT)
Without disconnection or with safety disconnection
 UT 1200 V/300A/200 ms withstand
Residual Current
Leakage current to Ground
 Ipe None
Follow current
If None
Nominal discharge current
15 x 8/20 µs impulses
 In 15 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
 Imax 25 kA
Total Maximum discharge current
max. total withstand @ 8/20 µs
Imax Total 50 kA
Connection mode(s)
 L/N and N/PE
Protection level L/N
@ In (8/20µs)
 Up L/N 2 kV
Protection level N/PE
@ In (8/20µs)
 Up N/PE 2 kV
Residual voltage L/N at 5 kA
@ 5 kA (8/20µs)
 Up-5kA 1.5 kV
Protection level N/PE at 5 kA
@ 5 kA (8/20µs)
 Up-5kA 1.5 kV
Admissible short-circuit current
 Isccr 100 000 A
Network type
 AC
Technology
 MOV+GDT
SPD configuration
 3-phase+Neutral
Connection to Network
 By screw terminals: 2.5-25mm² (35mm² rigid)
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)
 MDACF25-440 + MDAC50G-255/F25
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 - 4TE (EN43880)
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
internal (equivalent AC rating : 40 A, gG Type)
Integrated fuses
 Yes