AC breaker
2-pole MCB · C20 · 230/400 V~

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Pins
- L in
- L out
- N in
- N out
Lessons and builds that use it
- Light with one switch (build)
- Staircase light: two 3-way switches (build)
- Fan and light on a 2-gang switch (build)
- Outlet circuit: three outlets on a 20 A breaker (build)
- House panel: main breaker and four branch circuits (build)
- RCD protection: someone touches a live wire (build)
- Home UPS on a 24 V LiFePO4 battery: charger, inverter, changeover relays, two 220 V outputs (build)
- Home UPS on 8 × 3.2 V LiFePO4 cells + BMS: charger, inverter, changeover relays, two 220 V outputs (build)
- 1 HP inverter aircon on a 3.6 kW hybrid at night: what the battery sees (build)
- Why a 1.5 HP non-inverter aircon trips a 3 kW inverter at start-up (build)
- Grid-tie solar in a brownout: why the lights go out even at noon (build)
- Sari-sari store freezer through a brownout: battery, inverter and hours (build)
- Aircon branch circuit: 1.5 HP on 3.5 mm² and a 20 A breaker, on its own (build)
- Water heater circuit: 3.5 kW on 5.5 mm² and a 30 A breaker (build)