Residual Current Circuit Breaker Acti9 iID-40-4-30-B-EV 40A 4-pole 30mA type B-EV A9Z51440

Residual Current Device (RCD) for EV Charger Protection

The Acti9 iID-40-4-30-B-EV RCD is an advanced solution designed to protect electric vehicle charging installations. With a rated current of 40A and a sensitivity of 30mA, this device provides protection against electric shock and minimizes the risk of fire by reacting to both DC and AC leakage currents.

This four-pole (4P) RCD from the Acti9 series is dedicated to use in EV charging stations, where residual currents generated by charging devices may occur. The B-EV type construction guarantees effective protection even in the case of DC currents, which are not detected by standard Type A RCDs. This ensures the safety of the charging installation for users and the vehicle itself.

Key features and application

• Protection against all types of leakage currents: Type B-EV provides protection against AC, DC and AC currents with a DC component – crucial for EV chargers.
• DIN rail mounting: Standard DIN rail mounting simplifies installation and replacement in existing distribution boards.
• High resistance to interference: Ensures stable operation even in conditions of electromagnetic interference.
• Application: Ideal for protecting circuits powering electric vehicle charging stations in homes, businesses and public places.
• Width of 4 modules: Compact dimensions allow for easy integration into existing electrical infrastructure.
• Rated short-circuit current: Withstands a short-circuit current of 3kA, increasing system reliability.

Technical parameters and construction

The Acti9 iID RCD is characterized by a solid construction and high quality workmanship. It has a rated voltage of 400V and an insulation voltage Ui of 500V. The rated impulse withstand voltage Uimp is 6kV, providing additional safety in the event of overvoltage. The device is designed to operate in an ambient temperature from -25°C to 60°C. The cross-section of the connecting conductors is 1-35mm² for solid conductors and 1-25mm² for stranded conductors. The degree of protection IP20 provides protection against contact with fingers and against the ingress of solid objects larger than 12.5 mm. Power losses are 1.8W at a frequency of 50Hz. The additional possibility of mounting accessories expands the functionality of the device.