Schneider ACTI9 RCCB 25A 4P 300mA A9KR14425

Schneider ACTI9 RCCB 25A 4P 300mA – Fire-Safety & Earth Leakage Protection for Three-Phase Power Systems (A9KR14425)

The Schneider ACTI9 RCCB 25A 4P 300mA – Model A9KR14425 is a high-reliability residual current circuit breaker engineered to protect three-phase electrical installations from earth leakage faults, insulation breakdown and electrical fire hazards. As part of Schneider’s world-class ACTI9 protection portfolio, this RCCB ensures safety for users, equipment and building infrastructure in residential, commercial and industrial environments.

With a 25A current rating, the device is suited for low-to-medium load circuits such as lighting networks, HVAC control lines, industrial distribution feeders, small machinery, UPS inputs, server rooms and commercial floor panels. The 4-pole configuration (L1, L2, L3 + Neutral) ensures complete isolation of all active conductors during fault detection, providing maximum protection to the entire electrical installation.

The 300mA leakage sensitivity is optimized for fire-safety and protection against persistent leakage, preventing overheating in wiring and helping eliminate risks of electrical fire caused by insulation deterioration or cable aging — particularly important in long cable routes and heavy-load environments.

Built with Schneider’s cutting-edge ACTI9 electronics, the A9KR14425 offers fast and precise tripping response, high mechanical endurance and long-term reliability. The compact modular housing supports DIN-rail installation, ensuring seamless integration into 4-pole distribution boards, industrial switchboards and commercial electrical panels.

Whether used in factories, commercial buildings, workshops, hotels, data centers, warehouses or three-phase residential set-ups, this RCCB guarantees long-term safety, compliance and dependable operation with minimal maintenance.

Key Features

• Model: A9KR14425

• 25A | 4P (L1, L2, L3 + N) – designed for three-phase installations

• 300mA leakage sensitivity – ideal for fire & insulation safety

• Prevents earth faults, insulation breakdown & overheating risks

• Fast-acting trip functionality for maximum protection

• DIN-rail compatible for easy installation in DBs and control panels

• Suitable for commercial, industrial & heavy-duty residential three-phase systems

• Robust and maintenance-free modular construction