Type 2 AC surge protector with integrated fuse - Single-phase

DACF25-20-275
Part Number 821410212
DACF25-20-275
  • Type 2 AC Multipolar surge protector
  • In : 15 kA
  • Imax total : 50 kA
  • Internal Fuse
  • Pluggable module for each phase
  • Remote signaling option
  • EN 61643-11, IEC 61643-11 certified
  • 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.
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SPD type
2
Network
 230 V single-phase
AC system
 TN
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
Residual Current
Leakage current to Ground
 Ipe < 1 mA
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/PE and N/PE
Protection level N/PE
@ In (8/20µs)
 Up N/PE 1.25 kV
Protection level L/PE
@ In (8/20µs)
 Up L/PE 1.25 kV
Protection level N/PE at 5 kA
@ 5 kA (8/20µs)
 Up-5kA 1 kV
Residual voltage L/PE at 5 kA
@ 5 kA (8/20µs)
 Up-5kA 1 kV
Admissible short-circuit current
 Isccr 100 000 A
Technology
 MOV
SPD configuration
 Single phase
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)
 MDACF25-275
Remote signaling of disconnection
 option DACF25S-20-275 : 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 - 2TE (EN43880)
Standards compliance
 IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Certification
 KEMA
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