ABB Residual Current Device (RCD) DDA 200 series Ay type, AP-R (high immunity) – Type A Anti-Nuisance Tripping Earth Fault Protection

Description

ABB Residual Current Device (RCD) DDA 200 series Ay type, AP-R (high immunity) – Type A Anti-Nuisance Tripping Earth Fault Protection

The ABB RCD DDA 200 AP-R (High Immunity) Residual Current Block is the advanced solution for preventing service interruptions in noisy or transient-prone electrical installations. When assembled with a Miniature Circuit Breaker (MCB), this protection block significantly boosts the system’s tolerance to disturbances that cause standard devices to trip unnecessarily.

Key Features for Uninterrupted Service:

• AP-R High Immunity: Provides resistance to unwanted trippings caused by transient over voltages (like lightning or switching), ensuring system continuity.
• High Surge Resistance: The device can withstand surge currents up to 3000A (wave 8/20), a crucial feature for reliability in industrial settings.
• A Type Protection: Protects against both sinusoidal AC and direct pulsating DC earth fault currents.
• Personnel Safety: Offers additional protection against direct contacts when using the 30mA residual current option.

Compliant with IEC/EN 61009-1 Ann. G standards, the ABB DDA 200 AP-R Earth Leakage Block is the durable, essential component for secure and sustained power distribution.