Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20A, 3-Pole, 30mA Trip, DIN Rail A9DQ3720

Schneider Electric A9DQ3720 Residual Current Circuit Breaker with Overload Protection is engineered for efficient and safe distribution of electrical circuits. With a 20A current rating and three-pole configuration, this RCBO is ideal for residential, commercial, and industrial applications requiring protection against both overloads and earth leakage faults.

The device employs a thermal magnetic tripping mechanism, which ensures instantaneous response to earth-leakage and overload conditions. It maintains a trip sensitivity of 30mA, providing robust nuisance fault protection and meeting modern safety requirements. The RCBO features a toggle switch reset actuator, making reactivation easy and visible with ON/OFF and trip status indicators.

Provides reliable protection against overcurrent and earth leakage faults. Rated for 20A with 3-Pole operation suitable for distribution systems. Features thermal magnetic tripping mechanism with instantaneous earth-leakage response.

DIN rail mounting for easy installation in panels. 30mA trip sensitivity for enhanced safety and compliance. 400V AC operating voltage allows use in standard electrical networks. Breaking capacity of 10kA ensures robust circuit interruption.

Complies with EN/IEC 60947-2 and RoHS for quality and safety assurance.

Designed for clip-on mounting in DIN rail panels, the unit supports a wide ambient temperature range from -5°C to 60°C and, with a relative humidity tolerance of up to 95% at 55°C, is suitable for demanding environments. Its toggle switch actuator is padlockable for enhanced operational security.

Applications include overcurrent and earth leakage protection in residential buildings, commercial electrical distribution, HVAC panels, and industrial automation systems. The RCBO is manufactured with Schneider Green premium standards, providing durability and electrical stability with an electrical endurance of up to 20,000 cycles.

Dimensions are 93mm high, 73mm deep, and 90mm wide, allowing efficient integration into equipment and distribution boards. Earth leakage protection is type A-SI, and terminal type is tunnel for secure wiring.

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