Type 2 AC surge protector - 3-phase+N
Part Number: 821410244
  • Type 2 AC Multipolar surge protector
  • In : 15 kA
  • Imax total : 50 kA
  • Internal Fuse
  • Pluggable module for each phase
  • Remote signaling
  • NF EN 61643-11, CEI 61643-11 compliance
  • UL1449 ed.20

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
follow test IEC 61643-11
230/400 V 3-phase+N
AC system
Max. AC operating voltage L-N 275 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec.
without disconnection
335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
without disconnection or with safety disconnection
440 Vac disconnection
Temporary Over Voltage N/PE (TOV HT)
without disconnection or with safety disconnection
1200 V/300A/200 ms withstand
Operating current
Continious current at Uc
Follow current
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 L/N and N/PE
Protection mode(s)
Commun/Differential mode
Protection level L/N
@ In (8/20µs)
1.25 kV
Protection level N/PE
@ In (8/20µs)
1.5 kV
Residual voltage at 10 kA
@ 8/20µs
1.1 kV
Residuel voltage at 5 kA
@ 8/20µs
0.9 kV
Technology MOV+GDT
SPD configuration 3-phase+Neutral
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
Outdoor application
Failsafe behavior Disconnection
Disconnection indicator 1 mechanical indicator by pole
Spare module MDACF25-275+MDACG-275
Remote signaling of disconnection output on changeover contact
see diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification -
Thermal disconnector internal
Integrated Fuse
Installation ground fault breaker Type 'S' or delayed