Schneider SEL8F460 Surge Arrester - Pluggable Cartridge - Acti9, iKQ 3P+N KQ II, 20kA, Type 2+3 With Fuse

Product Overview

The Schneider Electric SEL8F460 Acti9 iKQ 3P+N Type 2+3 Surge Arrester is a premium surge protection device engineered to deliver reliable defence against transient overvoltages across three-phase electrical installations. Designed for seamless integration into KQ II load centres, this highly efficient SPD offers a compact, modular format suitable for commercial, industrial, and tertiary environments that require stable, continuous power quality.

Providing a combination of Type 2 and Type 3 protection, the iKQ ensures comprehensive protection against both direct and indirect lightning-induced surges. It safeguards sensitive equipment from damage caused by short-duration voltage spikes, switching events, and unpredictable network disturbances. Fully compliant with BS EN 61643-11:2012+A11:2018, the device ensures installations meet UK regulatory standards while maintaining reliable long-term performance.

Engineered with practicality and ease of use in mind, the surge arrester includes an integrated backup fuse, removing the need for an external disconnector. This significantly simplifies wiring, reduces installation time, and provides automatic reinforcement during high-energy surge events.

A clearly visible front-facing green/red status indicator allows maintenance teams to assess the SPD’s condition at a glance, improving operational safety and reducing the likelihood of unnoticed device depletion. When replacement is required, the pluggable cartridge system enables quick, safe, and tool-free cartridge exchange, ensuring minimal downtime and uninterrupted protection.

Compatible with TT, TN-S, and TN-C-S earthing arrangements, the Acti9 iKQ offers flexibility and durability for a wide range of modern electrical applications.

Key Features

• Delivers dependable protection against transient overvoltages arising from both direct lightning effects and indirect electrical disturbances.
• A built-in fuse eliminates the need for external disconnection devices, providing a self-protected SPD that speeds up installation and reduces wiring complexity.
• Each pole features a clear green/red indicator, enabling engineers to monitor device status effortlessly and maintain system reliability.
• Allows fast, safe replacement of depleted cartridges, supporting continuous protection with minimal system disruption.
• Suitable for TT, TN-S, and TN-C-S systems, making the device ideal for multi-phase installations across commercial and industrial settings.

Technical Specification

• Configuration: 3P+N Modular Device
• Nominal Discharge Current (In): 20kA (L–N) / 40kA (N–PE)
• Maximum Discharge Current (Imax): 40kA (L–N) / 65kA (N–PE)
• Voltage Protection Level (Up): 1.5kV (L–N & N–PE)
• Operating Voltage: 230/240V AC, 50/60Hz
• Uc Rating: 340V (L–N), 305V (N–PE)
• Operating Temperature: –40°C to +85°C
• IP Rating: IP20 (wired)
• Dimensions: 54(W) × 136(H) × 83(D) mm
• Weight: 389g
• EAN: 3606487695585

Why Choose the Schneider Electric Acti9 iKQ 3P+N Surge Arrester?

Choosing the Schneider Acti9 iKQ 3P+N means investing in a durable, future-proof surge protection solution engineered for the demanding requirements of today’s multi-phase electrical systems. Its integrated fuse technology, compliance with UK and international standards, and intuitive status indication make it a highly reliable option for engineers, installers, and facility managers.

Whether protecting industrial automation equipment, commercial distribution boards, or critical power systems, the iKQ ensures enhanced safety, extended device longevity, and simplified ongoing maintenance. Its compact profile and plug-on format for KQ II load centres further support efficient installation in both new builds and upgrade projects.

Delivering high-capacity surge suppression, robust construction, and superior ease of use, the Schneider Electric Acti9 iKQ 3P+N is a trusted choice for modern electrical installations seeking long-term, consistent, and compliant protection.