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

DACF15-31-275
Part Number: 821310234
DACF15-31-275
  • Type 2 (or 3) AC surge protector
  • Interne Disconnection device
  • Low caliber of the internal connector = systematic coordination with upstream circuit breaker
  • In : 5 kA
  • Imax : 15 kA
  • Pluggable module for each phase
  • Remote signaling option
  • 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 a internal fuse against short-circuit currents, which avoidsthe use of a 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.
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SPD type
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) Charasteristics - 5 sec.
Without disconnection
 UT 335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
Without disconnection or with safety disconnection
 UT 440 Vac disconnection
Residual Current
Leakage current to Ground
 Ipe None
Follow current
If None
Nominal discharge current
15 x 8/20 µs impulses
 In 5 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 - Red/Green
Spare module(s)
 MDACF15-275 + MDAC50G-275
Remote signaling of disconnection
 option DACF15S-31-275 : output on changeover contact
Wiring for remote signaling
 1.5 mm² max.
Dimensions
 See diagram - 1TE (EN43880)
Standards compliance
 IEC 61643-11 / EN 61643-11
Thermal disconnector
 Internal
Installation ground fault breaker
 Type 'S' or delayed
Fuses
 internal (equivalent AC rating : 25 A, gG Type)
Integrated fuses
 Yes