Schneider Electric scaricatore di sovratensione tipo 1+2 A9L16482 3P+N 20kA 40kA

The Schneider Electric A9L16482 is a high-performance Type 1+2 Surge Protection Device (SPD) designed to protect electrical installations against direct and indirect lightning strikes. With a 3P+N configuration, it is suitable for TN-S and TT networks, providing robust protection for sensitive equipment.

Advantages

Combines Type 1 and Type 2 protection in a single device, saving space and installation costs. Features a high discharge capacity with Iimp 12.5 kA per pole and In 20 kA, ensuring reliable performance. Integrated disconnector and remote signaling for easy monitoring.

Suitable for

• Main distribution boards in residential, commercial, and industrial buildings
• Protection of sensitive electronic equipment against lightning surges
• TN-S and TT earthing systems

Key specifications

• Product Type: Surge Protection Device (SPD)
• SPD Type: Type 1 + Type 2
• Poles: 3P + N
• Network Type: TN-S, TT
• Nominal Discharge Current (In): 20 kA (L/N), 20 kA (N/PE)
• Maximum Discharge Current (Imax): 40 kA (L/N), 40 kA (N/PE)
• Rated Impulse Current (Iimp): 12.5 kA (L/N), 12.5 kA (N/PE)
• Voltage Protection Level (Up): < 1.5 kV (L/N), < 1.5 kV (N/PE)
• Rated Operational Voltage (Uc): 230 V AC (L/N), 230 V AC (N/PE)
• Maximum Continuous Operating Voltage (Uc): 275 V AC (L/N), 275 V AC (N/PE)
• Signaling: Local indication (green/red flag), Remote transfer contact
• Mounting: DIN rail
• Modularity: 4 modules of 18 mm
• Protection Class: IP20 (terminals), IP40 (front face)
• Standards: IEC 61643-11 type 1 + 2, EN 61643-11 type 1 + 2
• Disconnector: Integrated
• Operating Temperature: -25 to 60 °C
• Connection: Screw terminals (up to 35 mm² rigid, 25 mm² flexible)
• Technology: MOV + GDT for N/PE

Recommendations

For optimal protection, install this SPD at the main distribution board and ensure proper coordination with downstream Type 2 or Type 3 SPDs. Always follow local electrical codes and manufacturer guidelines.