ABB RCD, RCCB & RCBO

ABB's residual current range covers both device types: F200 RCCBs for whole-group earth-leakage protection, and DS201 / DS203 RCBOs that combine earth-leakage and overcurrent protection in a single module so one faulty circuit does not trip the whole board. Sensitivities run from 30 mA for personal protection to 300 mA for fire protection.

RCD, RCCB & RCBO Residual Current Protection we supply

• ABB DS201T B10 A30 - 1P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B10 APR30 - 1P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B13 A30 - 1P+N, B-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B13 APR30 - 1P+N, B-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B16 A30 - 1P+N, B-Curve, 16 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B16 APR30 - 1P+N, B-Curve, 16 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B20 A30 - 1P+N, B-Curve, 20 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B20 APR30 - 1P+N, B-Curve, 20 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B25 A30 - 1P+N, B-Curve, 25 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B25 APR30 - 1P+N, B-Curve, 25 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B32 A30 - 1P+N, B-Curve, 32 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B32 APR30 - 1P+N, B-Curve, 32 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B40 A30 - 1P+N, B-Curve, 40 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B40 APR30 - 1P+N, B-Curve, 40 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B6 A30 - 1P+N, B-Curve, 6 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T B6 APR30 - 1P+N, B-Curve, 6 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C10 A30 - 1P+N, C-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C10 APR30 - 1P+N, C-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C13 A30 - 1P+N, C-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C13 APR30 - 1P+N, C-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C16 A30 - 1P+N, C-Curve, 16 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C16 APR30 - 1P+N, C-Curve, 16 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C20 A30 - 1P+N, C-Curve, 20 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C20 APR30 - 1P+N, C-Curve, 20 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C25 A30 - 1P+N, C-Curve, 25 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C25 APR30 - 1P+N, C-Curve, 25 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C32 A30 - 1P+N, C-Curve, 32 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C32 APR30 - 1P+N, C-Curve, 32 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C40 A30 - 1P+N, C-Curve, 40 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C40 APR30 - 1P+N, C-Curve, 40 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C6 A30 - 1P+N, C-Curve, 6 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T C6 APR30 - 1P+N, C-Curve, 6 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K10 A30 - 1P+N, K-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K13 A30 - 1P+N, K-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K16 A30 - 1P+N, K-Curve, 16 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K20 A30 - 1P+N, K-Curve, 20 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K25 A30 - 1P+N, K-Curve, 25 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K32 A30 - 1P+N, K-Curve, 32 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K40 A30 - 1P+N, K-Curve, 40 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS201T K6 A30 - 1P+N, K-Curve, 6 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B10 A100 - 3P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B10 A300 - 3P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B10 A30 - 3P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B10 AC100 - 3P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B10 AC300 - 3P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B10 AC30 - 3P+N, B-Curve, 10 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B13 A100 - 3P+N, B-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
• ABB DS203NC B13 A300 - 3P+N, B-Curve, 13 A Residual Current Circuit Breaker with Overcurrent Protection (RCBO)

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What to check before ordering

• Choose sensitivity by purpose: 30 mA for people, 300 mA for fire protection upstream.
• Type AC covers sinusoidal leakage only; type A is required where drives, UPS or switch-mode supplies are fed.
• An RCBO takes the place of an MCB and shares the board's busbar — check pole width and busbar compatibility.
• APR versions are designed to resist nuisance tripping in electrically noisy installations.

Frequently asked questions

RCBO or RCCB — which should I fit?

An RCCB protects a group of circuits, so one earth fault takes them all out. An RCBO protects a single circuit and also provides overcurrent protection, so faults stay contained. RCBOs cost more per circuit but are increasingly the default on critical boards.

What does type A mean and do I need it?

Type A detects pulsating DC residual current as well as AC. It is required wherever electronics, variable frequency drives, UPS systems or EV charging are supplied — all of which can produce leakage a type AC device may not see.

Why does my RCD trip with no obvious fault?

Usually cumulative standing leakage from many devices rather than a single fault, especially with drives and IT loads. Splitting circuits across more RCDs or using RCBOs per circuit is the normal remedy.

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