Type 2 or 3 AC surge protector - pluggable with integrated fuse

DACF15S-31-275
Part Number 821310244
DACF15S-31-275
  • Type 2 (or 3) AC surge protector
  • Internal Disconnection device
  • Low fuse rating of the internal connector = systematic coordination with upstream circuit breaker
  • In: 5 kA
  • Imax: 15 kA
  • Pluggable module for each phase
  • Remote signaling
  • EN 61643-11, IEC 61643-11, UL1449 ed.5 compliance
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The special feature of this series is the integrated and monitored back-up fuse, which makes the use of an additional external back-up fuse unnecessary. Type 2 (or 3) DACF15 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 DACF15 surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase.
SPD type
IEC

2 (or 3)
Network

230/400 V 3-phase+N
AC system

TT-TNS
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
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

5 kA
Nominal discharge current N/PE
15 x 8/20 µs impulses
 In N/PE

20 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
 Imax

15 kA
Withstand on Combination waveform IEC 61643-11
Class III test: 1.2/50µs - 8/20µs
 Uoc

10 kV
Protection level L/N
@ In (8/20µs)
 Up L/N

1 kV
Protection level N/PE
@ In (8/20µs)
 Up N/PE

1.5 kV
Admissible short-circuit current
 Isccr

100 000 A
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)

MDACF15-275 + MDAC50G-275
Remote signaling of disconnection

output on changeover contact
Wiring for remote signaling

1.5 mm² max.
Dimensions

See diagram - 4TE (EN43880)
Standards compliance

IEC 61643-11 / EN 61643-11
Thermal disconnector

Internal
Installation ground fault breaker

Type 'S' or delayed
Back-up protection device

internal (equivalent AC rating : 25 A, gG Type)
Integrated fuses

Yes