Schneider Electric Residual Current Circuit Breaker with Overload Protection 20A 3-Pole 300mA Trip A9DA7720

Schneider Electric A9DA7720 is a Residual Current Circuit Breaker with Overload Protection, designed specifically for reliable electrical distribution and residential overcurrent protection applications. This 3-pole device supports a current rating of 20A and features a 300 mA trip sensitivity for effective earth-leakage protection.

The Acti9 iDD40N series breaker employs thermal-magnetic trip unit technology ensuring fast and precise tripping under overload or short circuit conditions. It uses a toggle switch reset actuator, allowing convenient ON/OFF control and trip indication to increase operational safety.

Rated for a maximum AC voltage of 400V and a breaking capacity of 10kA, the circuit breaker is built to industrial durability standards with an electrical endurance of 20,000 cycles. Its mounting mode is DIN Rail, equipped with tunnel type terminals for secure wiring connections. The compact dimensions - height 93mm, width 90mm, and depth 73mm - allow for easy installation in standard electrical panels.

The device meets international standards including EN/IEC 60947-2 and RoHS, ensuring robust quality and environmental compliance. It is engineered to function effectively within ambient temperature ranges from -5°C to 60°C while tolerating relative humidity up to 95%. The breaker is padlockable, affording additional safety during maintenance cycles. As a Schneider Green premium class product, it represents energy-efficient and sustainable electrical protection solutions.

Applications for the A9DA7720 include residential electrical distribution, industrial control panels, and overcurrent protection in commercial settings. Its reliable tripping mechanism and high breaking capacity make it ideal for preventing electrical faults and equipment damage.

This circuit breaker features Acti9 iDD40N series thermal-magnetic trip unit technology. It supports instantaneous earth-leakage protection with a toggle switch control. Rated for 400V AC voltage with a 10kA breaking capacity.

Mounting is via DIN Rail with tunnel type terminals for secure connection. Compliant with EN/IEC 60947-2 and RoHS standards for safety and environmental protection. The device dimensions are 93mm height, 90mm width, and 73mm depth.

Designed to operate in ambient temperatures from -5°C to 60°C with 95% relative humidity tolerance. Padlockable feature provides extra protection during maintenance. Manufactured in Spain with Schneider Green premium classification.

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