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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

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