2CSB204201R5630 ABB DDA204 A S-63/1 RCD 4P AS 1000mA 63A

Why Choose the ABB DDA204 A S-63/1 RCD Block?

The ABB DDA204 A S-63/1 is a high-performance 4-pole Type A selective residual current device (RCD) block designed for residual current protection in commercial and industrial electrical installations. As part of the established ABB DDA200 RCD series, it responds to sinusoidal alternating and pulsating DC earth fault currents while incorporating an intentional tripping delay for selective coordination with suitable downstream instantaneous residual current devices.

Designed for assembly with compatible ABB S200 series and S300P miniature circuit breakers, the DDA204 A S-63/1 enables residual current protection to be combined with the overcurrent and short-circuit protection provided by the associated circuit breaker. Its four-pole configuration makes it suitable for compatible three-phase distribution systems incorporating a neutral conductor, while the selective characteristic helps improve discrimination within multi-level protection systems.

With a rated current of 63 A, a rated residual operating current of 1000 mA (1 A) and a rated voltage of 230/400 V AC, the DDA204 A S-63/1 is designed for distribution applications requiring Type A selective earth leakage protection. Additional terminals for remote tripping further support integration into commercial and industrial protection and control systems.

Key Advantages

• Advanced Type A selective residual current protection for four-pole electrical circuits.
• 63 A rated current for commercial and industrial distribution applications.
• 1000 mA (1 A) rated residual operating current.
• Detection of sinusoidal AC and pulsating DC residual currents.
• Selective (S) intentional tripping delay supports coordination with suitable downstream instantaneous devices.
• Additional terminals support remote tripping.

Key Features

• ABB DDA200 RCD series.
• 4-pole Type A selective RCD block.
• 63 A rated current.
• 1000 mA (1 A) rated residual current.
• Type A selective (S) residual current characteristic.
• 230/400 V AC rated voltage.
• 50–60 Hz rated frequency.
• 500 V rated insulation voltage.
• IP2X protection rating.
• Intentional tripping delay for selective residual current protection.
• Designed for assembly with compatible ABB S200 series and S300P miniature circuit breakers.
• Additional terminals for remote tripping.

Selective Type A Residual Current Protection

Type A residual current protection is designed to respond to both sinusoidal alternating residual currents and pulsating direct residual currents. The ABB DDA204 A S-63/1 combines this Type A detection capability with an intentional tripping delay, enabling selective coordination with suitable instantaneous residual current protection devices installed downstream.

When assembled with a compatible ABB S200 series or S300P miniature circuit breaker, the DDA204 A S-63/1 combines selective residual current protection with the overcurrent and short-circuit protection provided by the associated breaker. Its 1000 mA (1 A) residual current rating and selective characteristic make it particularly suited to appropriately designed upstream and distribution-level protection applications.

Typical Applications

• Commercial and industrial three-phase distribution systems incorporating neutral.
• Main and sub-distribution electrical panels.
• Industrial switchboards and control panels.
• Systems requiring selective residual current coordination.
• Circuits containing conventional and electronic electrical equipment.
• Circuits requiring 1000 mA Type A selective residual current protection.