Project Description



The DSLP is a compact solution surge protector to be installed in small spaces. The device is available in screw terminal connection and wiring (input/output opposite).

In cases of extreme aggression, DSLP will be in a state of safe end of life: the indication of failure (disconnection) of the surge protector is performed by the extinction of an indicator and switching off the AC (extinction street luminaire) inform the user of the need for maintenance. 

Surge protector for use in single-phase TT and TN systems

  • DIN rail mounting, very compact (low profile)
  • Screw terminal connection
  • Status indicator
  • Disconnection AC end of life
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SPD according to EN 61643-11 / IEC 61643-11type 2 / class II
Nominal a.c. voltage Un230-275 V AC (50/60 Hz)
Max. AC operating voltage Uc320 V AC (50/60 Hz)
Nominal discharge current (8/20μs) In5 kA
Maximum discharge current (8/20μs) Imax10 kA
Max. load current IL5 A
Residual current – Leakage current at Uc [IPE]None
Withstand on  Combination waveform – Class III test Uoc10 kV / 5 kA
Protection level CM/DM @ In (8/20μs) and @ 6kV (1.2/50μs) UP1,5 kV
Admissible short- circuit current ISCCR10 kArms
Temporatry Over Voltage (TOV) Charasteristics – 5 sec. UT335 Vac withstand
Temporatry Over Voltage (TOV) Charasteristics – 120 min. UT440 Vac disconnection
Operating temperature-40/+80°C
Failsafe behaviorLED green OFF and AC network cut-off
Connection to NetworkScrew terminal 1.5 mm2 max.
For mounting on35 mm DIN rail acc. to EN 60715
Disconnection indicatorDisconnection and AC line cut-off
Remote signaling of disconnectionnone
Housing materialThermoplastic
Place of installationindoor installation
Degree of protectionIP20