ABB DS301CA-C20/0,03 RCBO 1P+N type A C20 30mA 6kA 2CSR255163R1204

Protect circuits against both overload and earth leakage with the ABB DS301CA-C20/0,03 RCBO. This 1P+N device combines a C-curve 20 A miniature circuit breaker with a 30 mA Type A residual current device in a compact unit, reducing wiring time and panel space.

Who is it for

Electricians and panel builders who need reliable combined protection for single-phase circuits in residential, commercial, or light industrial installations. Suitable for circuits powering socket outlets, lighting, or equipment where both overcurrent and residual current protection are required.

Main features

• Rated current 20 A with C tripping characteristic for moderate inrush loads.
• Residual current sensitivity 30 mA, Type A for AC and pulsating DC fault currents.
• Short-circuit breaking capacity 6 kA at 230 V AC.
• 1P+N pole configuration with protected neutral.
• DIN rail mounting with screw terminals for rigid or flexible conductors.

Specifications

• Product type: RCBO (Residual Current Circuit Breaker with Overcurrent Protection)
• Number of poles: 1P+N
• Rated current (In): 20 A
• Residual current sensitivity (IΔn): 30 mA
• Residual current type: A
• Tripping characteristic: C
• Rated short-circuit breaking capacity (Icn): 6 kA
• Rated voltage (Ue): 230 V AC
• Frequency: 50/60 Hz
• Mounting type: DIN rail
• Terminal type: Screw terminals
• Terminal capacity flexible: 25 mm²
• Terminal capacity rigid: 35 mm²
• Electrical endurance: 10000 cycles
• Mechanical endurance: 20000 cycles
• Degree of protection: IP20 (terminals), IP40 (enclosure with cover)
• Standards: IEC/EN 61009-1, IEC/EN 61009-2-1
• Operating temperature: -25 to +55 °C

Tips

When installing, ensure the supply is isolated and verify the neutral connection is correct to avoid nuisance tripping. Use the test button regularly to confirm the residual current function operates correctly.