The NSP1-C40 AC Surge Protective Device 4 Pole is designed to safeguard electrical installations and sensitive equipment from high-energy transient surges caused by lightning and power switching events. It effectively diverts surge currents to ground, preventing costly damage and ensuring uninterrupted operation.

Built for three-phase (3P+N) electrical systems, the NSP1-C40 features a 385V AC maximum continuous operating voltage (Uc), 20kA nominal discharge current (In), and 40kA maximum discharge current (Imax), delivering reliable and long-lasting surge protection.

The modular DIN rail design enables quick installation in distribution boards and control panels, while the built-in visual status indicator makes maintenance simple by displaying green for normal operation and red when replacement is required.

Manufactured according to IEC 61643-11 standards, the NSP1-C40 is an ideal solution for protecting industrial machinery, commercial buildings, renewable energy systems, and critical electrical infrastructure.

Key Features

• Model: NSP1-C40
• 4 Pole AC Surge Protective Device
• Type 2 SPD
• Suitable for Three-Phase (3P+N) Systems
• Maximum Continuous Operating Voltage (Uc): 385V AC
• Nominal Discharge Current (In): 20kA
• Maximum Discharge Current (Imax): 40kA
• Fast response to lightning and switching surges
• Green/Red visual status indicator
• DIN Rail mounting
• Compact modular construction
• Long service life
• Low maintenance
• IEC 61643-11 compliant

Applications

• Three-Phase Distribution Boards
• Commercial Buildings
• Industrial Plants
• Manufacturing Facilities
• Data Centers
• Shopping Malls
• Hospitals
• Office Buildings
• Power Distribution Panels
• HVAC Systems
• Automation Panels
• Electrical Switchboards

Technical Specifications