ABB DS301CA-B10/0,03 FI/LS-Schalter is a single-pole-plus-neutral residual current circuit breaker (RCD) with integrated overcurrent protection, designed to safeguard single-phase circuits against leakage and overload. Built for reliable safety in residential and light commercial installations, it combines ABB’s trusted performance with straightforward operation.

Key Features & Design

• Type A residual current protection detects both AC and pulsating DC leakage currents for comprehensive protection.
• Tripping sensitivity 30 mA provides quick response to potentially dangerous leakage.
• Rated current B10 (10 A) suitable for standard branch circuits.
• Short-circuit capacity 6 kA ensures robust protection against surges.
• Configuration 1P+N protects a single phase with neutral.
• Part number 2CSR255163R1105 (model: DS301CA-B10/0,03)

Performance / Benefits

This device helps prevent electric shocks by rapidly disconnecting the circuit at the first sign of leakage, while its overcurrent protection guards wiring and connected equipment from overload. With a 6 kA interrupt rating, it offers dependable safety for everyday electrical installations.