Compact 3-phase+N Type 2 surge protector - 230/400 V - Pluggable
DS440-280
DS440-280
Part Number: 311102
  • Compact 3-Phase Type 2 surge protector
  • In : 20 kA
  • Imax : 40 kA
  • Common mode
  • Pluggable module
  • Remode Signaling contact option
  • EN 61643-11, CEI 61643-11, UL1449 ed.4 compliance
Installation Sheet

The DS440 Type 2 surge protectors are compact devices designed to protect 3-phase+N networks at the main switchboard. They provide a common or common/differential mode protection. This SPD is based on high energy varistor equipped with thermal disconnectors and failure indicator to comply with standards. The DS440 is DIN rail compatible and is built with a plug-in module and fixed base, which allows an easy and fast maintenance.


SPD type 2
Network 230/400 V 3-phase
AC system TN
Nominal line voltage Un 230 Vac
Max. AC operating voltage L-N Uc 280 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 440 Vac disconnection
Residual Current Ipe < 0.5 mA
Follow current If None
Nominal discharge current In 20 kA
Max. discharge current Imax 40 kA
Connection mode(s) L/PE and N/PE
Protection mode(s) Common mode
Residuel voltage at 5 kA Up-5kA 0.9 kV
Protection level CM/DM Up mc/md 1.3 kV
Admissible short-circuit current Isccr 10 000 A
Technology MOV
SPD configuration 3-phase+Neutral
Connection to Network by screw terminals: 1.5-10mm² (L/N) or 2.5-25mm² (PE)
Format Plug-in modular box
Mounting Symmetrical rail 35 mm (DIN 60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Failsafe mode Disconnection
Disconnection indicator 4 mechanical indicators
Spare module(s) DSM440-280
Remote signaling of disconnection Option DS440S-280 : output on changeover contact
Dimensions See diagram
Weight 0.235 kg
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification EAC
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed
Fuses 50 A mini. - 125 A max. - Fuses Type gG