SLP20-275/4S

Project Description

SLP20-275/4S


Description

Modular surge arrester for use in TN-S 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
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Type SLP20-275/4 SLP20-275/4S
SPD according to EN 61643-11 / IEC 61643-11 type 2 + type 3 / class II + class III type 2 + type 3 / class II + class III
Nominal a.c. voltage Un 230 / 400 V AC (50/60 Hz) 230 / 400 V AC (50/60 Hz)
Max. continuous operating a.c. voltage Uc 275 V AC (50/60 Hz) 275 V AC (50/60 Hz)
Nominal discharge current (8/20μs) In 10 kA 10 kA
Maximum discharge current (8/20μs) Imax 20 kA 20 kA
Combination wave (1.2/50μs) Uoc 10 kV 10 kV
Leakage current IPE < 1 mA < 1 mA
Nominal load current a.c IL 20 A 20 A
Voltage protection level UP 1,2 kV 1,2 kV
Response time tA 25 ns 25 ns
Max. mains-side over-current protection 125 A gL/gG 125 A gL/gG
Short-circuit current rating ISCCR 10 kArms 10 kArms
Temporary overvoltage (TOV) (UT) – Characteristic 335 V / 5 sec. – withstand 335 V / 5 sec. – withstand
Temporary overvoltage (TOV) (UT) – Characteristic 440 V / 120 min. – safe failure 440 V / 120 min. – safe failure
Temporary overvoltage (TOV) (UT) – Characteristic 335 V / 120 min. – withstand 335 V / 120 min. –  withstand
Temporary overvoltage (TOV) (UT) – Characteristic 440 V / 5 sec. – withstand 440 V / 5 sec. – withstand
Range of operating temperatures (TU) -40/+80°C -40/+80°C
Operating state / fault indication green / red green / red
Number of ports 1 1
Cross-sectional area (min.) 1.5 mm2 solid /flexible 1.5 mm2 solid /flexible
Cross-sectional area (max.) 35 mm2 stranded / 25 mm2 flexible 35 mm2 stranded / 25 mm2 flexible
For mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715
Enclosure material thermoplastic thermoplastic
Place of installation indoor installation indoor installation
Degree of protection IP 20 IP 20
Capacity 4 module(s), DIN 43880 4 module(s), DIN 43880
Approvals CE CE
Type of remote signalling contact changeover contact
a.c. switching capacity 250V / 0.5 A
d.c. switching capacity 250V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
Cross-sectional area for remote signalling terminals max. 1.5 mm2 solid / flexible

ac spd details 1

Dimensions-and-Basic-circuit-diagram-SPD-SLP20-275-4S

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