Type 2 AC surge protector - 3-phase+N
DS44S-400/M
Part Number: 461425
  • For 400 Vac, 3-phase Delta network
  • In : 20 kA
  • Imax total : 40 kA
  • Pluggable module for each phase
  • Remote signaling
  • NF EN 61643-11, CEI 61643-11 compliance
  • UL1449 ed.11

used mainly for primary protection of single and 3- phase networks at the main electrical panel. They provide common-mode or common and differential mode. This SPD is based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards.

The DS40 surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase or 3-phase+Neutral AC networks.They are sometimes associated with dedicated N/PE surge protector based on gas tube technology.


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SPD type
following IEC test
2
Network
400 V 3-phase Delta
AC system
IT
Nominal line voltage
400 Vac
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
Operating current
Continious current at Uc
< 1 mA
Follow current
None
Nominal discharge current
15 x 8/20 µs impulses
20 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
40 kA
Admissible short-circuit current
25000 A
Connection mode(s)
L/L and L/PE
Protection mode(s)
Common mode
Protection level L/PE
@ In (8/20µs)
1.8 kV
Residual voltage at 10 kA
@ 8/20µs
1.5 kV
Residuel voltage at 5 kA
@ 5 kA (8/20µs)
1.3 kV
Technology MOV
SPD configuration Delta 3-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)
DSM40-400/M
Remote signaling of disconnection
Output on changeover contact
Dimensions
See diagram
Certification
EAC
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Installation ground fault breaker Type 'S' or delayed
Thermal disconnector Internal
Fuses
Fuses type gG - 50 A