Electrical panel simulator

A single-phase panel that actually works: flip the levers, press the RCD TEST button, cause a short circuit or an overload and watch the breaker trip, with current flowing along the wires.

Device status

Main		0.00 A
RCD		0.00 A
Lighting		0.00 A
Sockets		0.00 A

Log

Operate the panel to see events.

How it works

A short circuit produces a huge current; the magnetic protection opens almost instantly above In × the curve factor (C = 10×).
An overload (current above In, but not enormous) heats the bimetal; tripping is inverse-time — the larger it is, the faster it trips.
The RCD compares the outgoing and returning current; if part of it “leaks” to earth (≥ IΔn, e.g. the TEST button), it opens both poles.
Selectivity: a fault on one circuit trips only its own breaker, not the main one — the rest of the panel stays live.

Thermal times are sped up for teaching, so tripping is visible within a few seconds. Powered by a real MNA engine (computed current, not a pre-set animation).