ABB 2CSB203001R1250

The DDA203 AC-25/0.03 Residual Current Device Block is designed for integration with MCBs from the S200 and S300P series. It effectively safeguards against the detrimental effects of earth fault currents, ensuring protection against both indirect contacts and direct contacts with a sensitivity rating of 30 mA. This device is applicable in various environments, including residential, commercial, and industrial settings.

With a rated operational voltage of 230/400 V and a rated current of 25 A, this device operates within a frequency range of 50 to 60 Hz. It complies with IEC/EN 61009 standards and features a rated insulation voltage of 500 V and a rated impulse withstand voltage of 4 kV, making it suitable for diverse electrical installations.

The DDA203 is constructed to withstand ambient temperatures ranging from -25 to 55 °C, ensuring reliability in challenging conditions. It has a compact design with dimensions of 87 mm in width, 93 mm in height, and 76 mm in depth, with a weight of 0.158 kg. The device is rated for a short-circuit current of 1 kA and boasts an electrical endurance of 10,000 cycles.

The device is also compliant with RoHS and REACH directives, confirming its suitability for environmentally conscious applications. For operational efficiency, it accommodates both rigid and flexible cable connections with a cross-section capability of up to 16 mm². The DDA203 includes a degree of protection rated at IP2X, ensuring adequate protection against solid objects.