Residual current circuit breaker IDK-40-4-300-AC 40A 4-pole 300mA type AC A9Z06440

Safety and protection in your electrical installation

Residual Current Device (RCD) IDK-40-4-300-AC is a key element ensuring the safety of using the electrical installation. The device, catalog number A9Z06440, effectively protects against electric shock by reacting to leakage currents. It is a four-pole switch with a rated current of 40A and a sensitivity of 300mA, designed to operate in alternating current (AC) circuits.

Functionality and application

The IDK K series RCD from Schneider Electric is designed for residential and similar buildings. Its construction allows for the implementation of protection against electric shock in a wide range of applications. Thanks to the placement of the neutral (N) conductor on the left side, the switch easily integrates with overcurrent switches, facilitating busbar and distribution board organization. Double terminals from below (busbar + wire) and ribbed terminal surfaces increase connection reliability and installation comfort.

Key features and benefits

• Protection against electric shock: Provides effective protection of people against electric shock in the event of insulation failure.
• AC type: Correctly reacts to sinusoidal leakage currents, which is important in most home and commercial installations.
• High short-circuit strength: Withstands short-circuit currents up to 10 kA, guaranteeing reliable operation in the event of a short circuit.
• Easy installation: Mounting on a DIN rail and double terminals facilitate and speed up installation.
• Status control: The ability to check the correct operation using the "T" test button (once every six months for the first 7 years of use) allows for regular verification of the device's efficiency.
• Wide operating temperature range: Allows operation at temperatures from -5°C to 40°C, providing application flexibility.
• Compliance with standards: Meets the requirements of EN/IEC 61008-1 standards, guaranteeing safety and reliability.
• Wire cross-sections: Supports solid wires with a cross-section of 1…35 mm² and stranded wires 1…25 mm².

Technical parameters for professionals

The switch is characterized by a rated voltage of 415 V and an insulation voltage Ui of 440 V. The rated impulse withstand voltage Uimp is 4 kV. The device has a protection degree of IP20, which means protection against touching with a finger and solid objects larger than 12.5 mm. Power losses are 3.6 W at a frequency of 50/60 Hz. The width of the switch is 4 modules (72 mm). The pollution degree is 2.