Siemens Digital Industry Combined Surge Arrester 5SD7444-8KK11

Manufacturer: Siemens Digital Industry
Description: Combined Surge Arrester Type 1 + 2, UC 300V
Type: 5SD7444-8KK11
Number of Conductors (without Ground): 4
Nominal Surge Current (8/20): 50 kA
Maximum Surge Current (8/20): 50 kA
Nominal Voltage AC: 230 V
Maximum Continuous Voltage AC: 300 V
Protection Level: 1.5 kV
Protection Level L-N: 1.5 kV
Protection Level N-PE: 1.5 kV
Short-Circuit Strength (Isccr): 25 kA
Integrated Short-Circuit Protection: No
Integrated Pre-Fuse: No
Size: Other
Maximum Conductor Cross-Section Rigid (Single/Multi-Wire): 35 mm²
Maximum Conductor Cross-Section Flexible (Fine-Wire): 25 mm²
With Remote Monitoring Contact: Yes
Device Signaling: Optical
Test Class Type 2: Yes
Protection Class (IP): IP20

Additional Details: Combined Surge Arrester Type 1 + 2, Requirement Class B+C, UC 300V, Iimp=7.5 kA, 4-pole, 3+1 circuit for TN-S and TT systems for 40mm busbar system.