Type 2 AC surge protector - Single-phase
DACF25-20-440
DACF25-20-440
Part Number: 821410412
  • Type 2 AC Multipolar surge protector
  • In : 15 kA
  • Imax total : 50 kA
  • Internal Fuse
  • Pluggable module for each phase
  • Remote signaling option
  • NF EN 61643-11, CEI 61643-11 compliance
  • UL1449 ed.4
Installation Sheet

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 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 DACF25 surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase.



SPD type
following IEC test
2
Network
230 V single-phase
AC system
IT
Max. AC operating voltage L-N
440 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec.
without disconnection
580 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
without disconnection or with safety disconnection
770 Vac disconnection
Residual Current
Leakage current to Ground
< 1 mA
Follow current
None
Nominal discharge current
15 x 8/20 µs impulses
15 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
25 kA
Total Maximal discharge current
max. total withstand @ 8/20 µs
50 kA
Admissible short-circuit current
100000 A
Connection mode(s)
L/PE and N/PE
Protection level L/PE
@ In (8/20µs)
1.8 kV
Protection level N/PE
@ In (8/20µs)
1.8 kV
Technology MOV
SPD configuration Single phase
Connection to Network By screw terminals: 2.5-25 mm² / by bus
Format
Plug-in modular box
Mounting
Symmetrical rail 35 mm (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Failsafe behavior Disconnection
Disconnection indicator 1 mechanical indicator by pole
Spare module(s)
MDACF25-440
Remote signaling of disconnection
option DACF25S-20-440 : output on changeover contact
Dimensions
See diagram
Certification
-
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Fuses
Integrated Fuse
Installation ground fault breaker Type 'S' or delayed
Thermal disconnector Internal