Citel DS240S-230/G, 230V AC Type II SPD


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The DS240 Type 2 surge protectors are compact devices designed to protect single phase 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 DS240 is DIN rail compatible and is built with a plug-in module and fixed base, which allows an easy and fast maintenance.


  • Compact single-phase Type 2 surge protector
  • In : 20 kA
  • Imax : 40 kA
  • Common/Differential mode
  • Pluggable module
  • Remote signaling
  • EN 61643-11, CEI 61643-11 compliance
  • UL1449 ed.5


SPD type  2

Network  230 V single-phase

AC system  TT-TN

Nominal line voltage  230V AC

Max. AC operating voltage L-N  255V AC

Max. load current  20 A

Temporary Over Voltage (TOV) Charasteristics - 5 sec.   335V AC withstand

Temporary Over Voltage (TOV) Charasteristics - 120 mn   440V AC disconnection

Temporary Over Voltage N/PE (TOV HT)  1200 V / 300A / 200 ms withstand

Residual Current  None

Operating current  0.5 mA

Follow current  None

Nominal discharge current  20 kA

Max. discharge current  40 kA

Total Maximal discharge current 40 kA

Protection mode(s)  Common / Differential mode

Residuel voltage at 5 kA 1.5 / 0.9 kV

Protection level CM / DM   1.5 / 1.25 kV

Admissible short-circuit current  10 000 A

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