Product Description

The Schneider Electric Acti9 iPRD F40r (A9L8F461) is a high-performance surge protective device designed to safeguard three-phase electrical installations in residential, commercial and industrial environments. It protects against both direct and indirect transient overvoltages, helping to maintain system reliability and continuity of service.

This 3P+N modular Type 2+3 surge arrester incorporates an integrated, surge-adapted backup fuse and withdrawable cartridges, allowing rapid replacement if protection components become exhausted. Local visual status indication is provided via a front-mounted flag (green for operational, red for replacement required), while an integrated remote signalling contact enables external monitoring.

Compatible with TT, TN-S and TN-C-S earthing systems, the device operates at 230/240V AC and offers excellent protection levels with very fast response times. Its plug-on mounting design ensures quick, space-efficient installation within Acti9 distribution systems.

Key Features

• Type 2 + 3 surge protective device for comprehensive overvoltage protection
• 3P+N configuration for three-phase distribution systems
• Integrated surge-adapted backup fuse
• Remote signalling contact for system monitoring
• Local green/red visual status indicator
• Pluggable, replaceable cartridges for easy maintenance
• Compatible with TT, TN-S and TN-C-S earthing systems
• Compact plug-on mounting for Acti9 chassis

Technical Specification

• Range: Acti9
• Product Type: Surge arrester with pluggable cartridge
• Device Short Name: iPRD F40r
• Standards: IEC 61643-11:2011, BS EN 61643-11:2012+A11:2018
• Rated Operational Voltage (Ue): 230/240V AC, 50/60Hz
• Maximum Continuous Operating Voltage (Uc): 340V L-N / 305V N-PE
• 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 and N-PE)
• Open Circuit Voltage (Uoc): 6000V
• Short-Circuit Withstand: 25kA
• Response Time: <25ns (L-N), <100ns (N-PE)
• IP Rating: IP20 (when wired)
• IK Rating: IK05
• Operating Temperature: –40°C to +85°C
• Dimensions (H × W × D): 129 × 54 × 85 mm
• Weight: 361 g
• Colour: White (RAL 9003)

Data Sheet

Download the Schneider Electric A9L8F461 data sheet (PDF)

Instruction Manual

View the Schneider Acti9 KQ SPD brochure