ABB Residual Current Device RCD DDA 800 Ay type AP-R (high immunity) for MCBs S800 – Excellent Type A Anti-Nuisance Tripping Earth Fault Protection for S800 MCBs

Description

ABB Residual Current Device RCD DDA 800 Ay type AP-R (high immunity) for MCBs S800 – Excellent Type A Anti-Nuisance Tripping Earth Fault Protection for S800 MCBs

The ABB RCD DDA 800 A AP-R High Immunity Earth Leakage Device is engineered for demanding installations where service continuity is critical. It functions as a modular RCD-block for the ABB S800 series Miniature Circuit Breakers.

Key Advantages for Service Continuity:

• Advanced AP-R Technology: Provides superior resistance to unwanted trippings caused by transient electrical noise, ensuring uninterrupted service in noisy environments.
• Type A Protection: Delivers comprehensive earth fault protection by detecting both sinusoidal alternating (AC) and direct pulsating (DC) residual currents.
• High Capacity: Compatible with S800 MCBs up to 100A rated current.
• Enhanced Safety: Offers protection against indirect contacts and additional safety against direct contacts when the 30mA sensitivity option is selected (IΔn=30mA).

This high-quality protection block is available in 2-pole (DDA 802), 3-pole (DDA 803), and 4-pole (DDA 804) versions and is compliant with IEC/EN 60947-2 Ann. B standard.