Schneider ACTI9 RCCB 40A 4P 30mA A9KR11440

Schneider ACTI9 RCCB 40A 4P 30mA – High-Sensitivity Shock-Protection for Three-Phase Electrical Systems (A9KR11440)

The Schneider ACTI9 RCCB 40A 4P 30mA – Model A9KR11440 is a premium high-sensitivity residual current circuit breaker designed to provide maximum human safety against electric shock and protection from earth leakage faults in three-phase power systems. Built on Schneider’s renowned ACTI9 global protection platform, this RCCB ensures precise fault detection, fast tripping, and long-term electrical safety across residential, commercial and industrial installations.

With a 40A current rating, this device is designed to support medium to high load circuits including commercial lighting networks, industrial equipment, HVAC and AHU units, office floors, hotel panels, small machinery feeders, and three-phase residential supply boards. The 4-pole (L1, L2, L3 + Neutral) configuration ensures complete isolation of all active conductors during fault conditions, enhancing user and installation safety.

The 30mA sensitivity level makes this RCCB ideal for life-protection applications, instantly detecting even small leakage currents that could cause electrocution. It is therefore recommended for areas where human safety is the top priority, including homes, offices, showrooms, schools, hospitals, hotels, workshops and industrial workplaces.

Designed for DIN-rail mounting, the compact modular frame fits seamlessly into 4-pole DBs, control panels and switchboards. Engineered for continuous operation under varying loads, the A9KR11440 ensures stable performance, zero-maintenance operation and long electrical life.

Whether used for a new project or to enhance the safety of an existing installation, the Schneider ACTI9 RCCB 40A 4P 30mA delivers industry-leading electrical protection, guaranteed reliability and complete peace of mind.

Key Features

• Model: A9KR11440

• 40A | 4 Pole (L1, L2, L3 + Neutral) – suitable for three-phase systems

• 30mA high-sensitivity leakage protection – prevents electric shock & electrocution

• Ensures safety against insulation faults & harmful leakage currents

• Fast-acting tripping mechanism ensures maximum user protection

• DIN-rail mounting – compatible with 4-pole DBs and control panels

• Ideal for residential, commercial and industrial applications

• Durable, compact and maintenance-free modular construction