Project Description
SLP40-750/3S
Description
Modular surge arrester for use in TN-C systems; with floating changeover 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
Type | SLP40-750/3 | SLP40-750/3S |
SPD according to EN 61643-11 / IEC 61643-11 | type 2 / class II | type 2 / class II |
Nominal a.c. voltage Un | 690 V AC (50/60 Hz) | 690 V AC (50/60 Hz) |
Max. continuous operating a.c. voltage Uc | 750 V AC (50/60 Hz) | 750 V AC (50/60 Hz) |
Nominal discharge current (8/20μs) In | 20 kA | 20 kA |
Maximum discharge current (8/20μs) Imax | 40 kA | 40 kA |
Voltage protection level UP | 3,4 kV | 3,4 kV |
Response time tA | 25 ns | 25 ns |
Max. mains-side over-current protection | 100 A gL/gG | 100 A gL/gG |
Short-circuit current rating ISCCR | 25 kArms | 25 kArms |
Temporary overvoltage (TOV) (UT) – Characteristic | 871 V / 5 sec. – withstand | 871 V / 5 sec. – withstand |
Temporary overvoltage (TOV) (UT) – Characteristic | 1143 V / 120 min. – safe failure | 1143 V / 120 min. – safe failure |
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 | 3 module(s), DIN 43880 | 3 module(s), DIN 43880 |
Approvals | CE | CE |
Type of remote signalling contact | – | changeover contact |
a.c. switching capacity | – | 250 V / 0.5 A |
d.c. switching capacity | – | 250 V / 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 |