Schemes

All-RCBO Board

Every circuit has its own RCBO — a fault only affects that circuit.

B6B32B20B32LTGSKTKITEV
● Line● Neutral● Earth

Tap any wire, switch or device to see what it is.

Trip socket RCBO

Useful Information

Best practice for minimising inconvenience (314.1) — only the faulty circuit goes off.

Important to know

  • Check RCBO type (A, F or B) suits the load — EV chargers may need Type B or 6 mA DC detection (722.531.3.101).
  • Consider AFDDs for higher-risk premises (421.1.7).
  • SPD assessment required (443.4).

BS 7671:2018+A4:2026 references

314.1421.1.7443.4722.531.3.101

Study notes paraphrased — check against your copy of BS 7671.