Type 2 AC surge protector - Single-phase

DACF25S-20-275
Part Number: 821410222
DACF25S-20-275
  • Type 2 AC surge protector
  • In : 15 kA
  • Imax : 25 kA
  • Interne Disconnection device
  • Pluggable module for each phase
  • Remote signaling
  • EN 61643-11, IEC 61643-11 certified
  • UL1449 ed.5 compliance

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
2
Network
230 V single-phase
AC system
TN
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 < 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
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)
Weight
0.208 kg
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Certification
KEMA / EAC
Thermal disconnector
Internal
Installation ground fault breaker
Type 'S' or delayed
Fuses
internal (equivalent AC rating : 40 A, gG Type)
Integrated fuses
Yes