SLP20-275/3S

Project Description

SLP20-275/3S


Description

Modular surge arrester for use in TN-C systems with floating remote signaling contact.

  • Prewired complete unit consisting of a base part and plug-in protection modules
  • High discharge capacity due to heavy duty zinc oxide varistors/spark gaps
  • High reliability due to “Thermo Dynamic Control” SPD monitoring device
TypeSLP20-275/3SLP20-275/3S
SPD according to EN 61643-11 / IEC 61643-11type 2 + type 3 / class II + class IIItype 2 + type 3 / class II + class III
Nominal a.c. voltage Un230 / 400 V AC (50/60 Hz)230 / 400 V AC (50/60 Hz)
Max. continuous operating a.c. voltage Uc275 V AC (50/60 Hz)275 V AC (50/60 Hz)
Nominal discharge current (8/20μs) In10 kA10 kA
Maximum discharge current (8/20μs) Imax20 kA20 kA
Combination wave (1.2/50μs) Uoc10 kV10 kV
Leakage current IPE< 1 mA< 1 mA
Nominal load current a.c IL20 A20 A
Voltage protection level UP1,2 kV1,2 kV
Response time tA25 ns25 ns
Max. mains-side over-current protection125 A gL/gG125 A gL/gG
Short-circuit current rating ISCCR10 kArms10 kArms
Temporary overvoltage (TOV) (UT) – Characteristic335 V / 5 sec. – withstand335 V / 5 sec. – withstand
Temporary overvoltage (TOV) (UT) – Characteristic440 V / 120 min. – safe failure440 V / 120 min. – safe failure
Temporary overvoltage (TOV) (UT) – Characteristic335 V / 120 min. – withstand335 V / 120 min. –  withstand
Temporary overvoltage (TOV) (UT) – Characteristic440 V / 5 sec. – withstand440 V / 5 sec. – withstand
Range of operating temperatures (TU)-40/+80°C-40/+80°C
Operating state / fault indicationgreen / redgreen / red
Number of ports11
Cross-sectional area (min.)1.5 mm2 solid /flexible1.5 mm2 solid /flexible
Cross-sectional area (max.)35 mm2 stranded / 25 mm2 flexible35 mm2 stranded / 25 mm2 flexible
For mounting on35 mm DIN rail acc. to EN 6071535 mm DIN rail acc. to EN 60715
Enclosure materialthermoplasticthermoplastic
Place of installationindoor installationindoor installation
Degree of protectionIP 20IP 20
Capacity3 module(s), DIN 438803 module(s), DIN 43880
ApprovalsCECE
Type of remote signalling contactchangeover contact
a.c. switching capacity250V / 0.5 A
d.c. switching capacity250V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
Cross-sectional area for remote signalling terminalsmax. 1.5 mm2 solid / flexible

ac spd details 1

Dimensions-and-Basic-circuit-diagram-SPD-SLP20-275-3S

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