Schneider Electric Residual Current Circuit Breaker with Overload Protection 20A Current Rating 3-Pole 30 mA Trip A9DV3720

Schneider Electric A9DV3720 Residual Current Circuit Breaker with Overload Protection is engineered for precise electrical safety applications, suitable for distribution boards and residential electrical systems requiring dependable protection against overloads and earth leakage currents. Featuring a 20A current rating and 3 poles, this circuit breaker integrates advanced thermal-magnetic trip unit technology with instantaneous earth-leakage protection set at 30 mA trip sensitivity.

Its compact size, measuring 93mm in height, 90mm in width, and 73mm in depth, allows for efficient space utilization in electrical panels. The device mounts easily on DIN rails, utilizing a tunnel terminal type for secure wiring connections. The toggle switch actuator provides intuitive ON/OFF control with clear trip indication.

This model offers a breaking capacity of 10kA, suitable for typical short-circuit conditions encountered in building installations. The Schneider Electric Acti9 iDD40N series ensures compliance with industry standards including RoHS and EN/IEC 60947-2, guaranteeing consistent performance and safety. Its AC earth leakage protection type is specifically designed for alternating current applications, enhancing operational reliability.

Additional features include a padlockable mechanism to prevent unauthorized switching during maintenance and an impulse withstand voltage of 4 kV, increasing durability. Operating ambient temperature ranges from -5 to 60 °C with high relative humidity tolerance up to 95% at 55 °C. This circuit breaker ensures excellent thermal and magnetic protection in various electrical applications.

Typical use cases include residential power distribution, commercial installations, and systems requiring overcurrent and leakage fault protection. The product's robust design and compliance with safety certifications make it well suited for construction, manufacturing, and HVAC applications requiring reliable circuit interruption.

Equipped with thermal-magnetic trip unit technology for precise circuit protection. Toggle switch actuator provides clear ON/OFF and trip indication. Compact design suitable for DIN rail mounting installation. Rated breaking capacity of 10kA supports short circuit protection.

Compliant with RoHS, EN/IEC 60947-2 standards for industrial safety. Padlockable for enhanced safety during maintenance periods. Rated for 400V AC applications with 20A current rating. 3-pole configuration supports multi-phase electrical systems.

Earth leakage protection type AC ensures operational reliability. Manufactured in Spain with high-quality standards. Explore more Schneider Electric products and circuit breakers at EnvMart for industrial, residential, and commercial electrical safety solutions.