The Schneider iST 3P+N 20KA is a surge protection device (SPD) designed to protect electrical circuits from transient overvoltage, commonly caused by lightning strikes or switching surges.
Key Features:
Surge Protection Rating: 20kA (nominal discharge current)
Poles: 3P+N (Three-Phase + Neutral)
Voltage Protection Rating (Up): 2.5kV (maximum)
Type: Type 2 SPD (for installation in the distribution board)
Maximum Continuous Operating Voltage (Uc): 275V AC (for 230V systems)
Response Time: <25ns
Mounting: DIN rail mounting
Standards Compliance: IEC 61643-1, EN 61643-11
Operating Temperature Range: -40°C to +80°C
Terminal Type: Screw-type
Certifications: CE, RoHS
Applications:
Protection of electrical installations in residential, commercial, and industrial environments
Distribution panels and switchgear
Protection for sensitive electronic equipment, computers, communication systems, and machinery
Lightning and switching surge protection for power distribution systems