ABB 2CSB204001R3250

The DDA204 AC-25/0.3 Residual Current Device Block is engineered for compatibility with MCBs from the S200 and S300P series, ensuring reliable protection against sinusoidal alternating earth fault currents. This device features a rated current of 25 A and a rated residual current sensitivity of 300 mA, making it suitable for a variety of applications including residential, commercial, and industrial environments.

Operating within a voltage range of 230/400 V and with a rated insulation voltage of 500 V, the block adheres to IEC/EN 61009 Ann. G standards. It offers an instantaneous operating characteristic and includes a total of four poles, accommodating a maximum connecting capacity for both rigid and flexible cables of 16 mm². The device is designed for a wide ambient temperature range of -25 to 55 °C and a pollution degree of 2, ensuring durability under various environmental conditions.

With an electrical endurance rated at 10,000 cycles and a tightening torque requirement of 1.2 N·m for connections, this RCD block is built to withstand frequent use. The assembly allows for six modular spacings per DIN rail, enhancing its applicability in various installations. The DDA204 also complies with environmental regulations, showcasing a recyclability rate of 69.47% as per EN45555 standards.