Schneider Electric Residual Current Circuit Breaker with Overload Protection 40A Current Rating 3-Pole 30 mA Trip A9DB3740

Schneider Electric A9DB3740 Residual Current Circuit Breaker with Overload Protection is designed for reliable protection in electrical distribution networks. With a current rating of 40 amps and a 3-pole configuration, this RCBO offers enhanced safety through its 30 mA trip sensitivity, detecting residual currents to prevent electric shocks and fire hazards.

Equipped with a thermal-magnetic trip technology, it effectively safeguards circuits against overloads and short circuits. The device features a toggle switch reset actuator along with ON/OFF and trip indicators for user-friendly operation. Its DIN rail mounting facilitates seamless installation in standard panel boards.

Conforming to international standards such as EN/IEC 60947-2 and EN/IEC 61009-2-1, the device ensures compliance with regulatory electrical safety requirements. Its rated AC voltage is 400V with a breaking capacity of 10kA, suitable for common residential and commercial electrical systems.

The construction includes a tunnel-type terminal and earth leakage protection classified as A-SI, designed to provide sensitive and prompt earth leakage detection. Measuring 93mm in height, 90mm in width, and 73mm in depth, this compact breaker fits efficiently within electrical enclosures and panels.

Additional features include an environmental operating temperature from -5 to 60°C and the capacity to withstand impulse voltages up to 4 kV. Its electrical durability of 20,000 cycles guarantees long operational life, making it ideal for repeated usage scenarios.

This breaker is padlockable, allowing for enhanced safety when maintenance or isolation is required. It is a Schneider Green premium classed product, highlighting its energy-efficient and eco-conscious design.

The Schneider Electric Acti9 series residual current breaker is suitable for residential, industrial, and commercial applications requiring overcurrent and earth leakage protection, such as power distribution boards, residential electrical panels, and safety systems in automation and control gear environments.

Incorporates thermal-magnetic trip unit technology for overload and short circuit protection. Complies with EN/IEC 60947-2 and EN/IEC 61009-2-1 standards. Rated for 400V AC operation with a breaking capacity of 10 kA. Mounts on DIN rail with toggle switch actuator for easy manual operation.

Earth leakage protection type A-SI provides instantaneous earth-leakage detection. Compact dimensions measuring 93mm height, 90mm width, and 73mm depth. Durable with an electrical endurance of 20,000 operating cycles. Suitable for residential and overcurrent protection applications in distribution systems.

Padlockable design enhances safety during maintenance. Manufactured in Spain, part of the Schneider Electric Acti9 iDD40N series.

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