ABB Residual Current Device (RCD) DDA 800 Ay type for MCBs S800 – Excellent Protection Against Sinusoidal AC & Pulsating DC Currents 30mA to 500mA

Description

ABB Residual Current Device (RCD) DDA 800 Ay type for MCBs S800 – Excellent Protection Against Sinusoidal AC & Pulsating DC Currents 30mA to 500mA

The ABB RCD DDA 800 Type A Earth Fault Device is a robust, modular safety solution engineered to expand the functionality of the ABB S800 series Miniature Circuit Breakers (MCBs). This high-capacity modular unit is rated up to $100\text{A}$ and is compliant with the demanding IEC/EN 60947-2 Ann. B standard.

Key Features for Enhanced Protection:

• A-Type Functionality: Provides critical protection by detecting and interrupting both sinusoidal alternating and direct pulsating earth fault currents. This makes it suitable for circuits supplying equipment with electronic components.
• High Rated Current Options: Available in $63\text{A}$ and $100\text{A}$ variants, catering to different load requirements.
• Versatile Configurations: Comes in 2-pole (DDA 802), 3-pole (DDA 803), and 4-pole (DDA 804) versions.
• Multiple Sensitivities: Offers a range of residual current sensitivities (IΔn​) including $30\text{mA}$, $300\text{mA}$, and $500\text{mA}$.

This modular protection unit is the dependable choice for modern commercial and industrial electrical installations requiring superior protection against a broader range of earth fault currents.