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How to build a panel

WherePanel and circuitstab Panel

Entry: the Panel and circuits card at the top of the Electrics section → Panel, the Open button. While there is no panel, the card has a Build button: the appliances will be spread across circuits and the panel will be built. Below is Housings for the plan: panel enclosures for the plan.

Steps

  1. The panel is built automatically by circuits: the first row is Incoming: the incoming breaker, a voltage relay, a fire-protection RCD (type S); from the second row, circuit RCDs with their MCBs, RCBOs, three-phase ones.
  2. Above the panel set Slots per rail (12, 18, 24) and Rows. There you can also see how many slots are taken, and the reserve for future lines (20 % by default, this is not a standard). If a better enclosure can be chosen, a button like Enclosure 2 × 18 will appear.
  3. Add devices from the catalog on the left: a click places the device in the first row with a free slot, and you can drag it to the place you want in any row.
  4. Click a device, and its properties open on the right. The ← and → arrows swap it with its neighbor in the row.
  5. For a device set Fed from: by order — through RCD #… (an MCB right after an RCD is fed through it), from the busbar or through RCD #…. With the mouse: click the top screw of the MCB, then the bottom screw of the RCD or incoming device you need. Neutral moves along with the supply.

Wires, screws, comb busbar

  • Wires and jumpers are built automatically. Core colors per GOST: L1 brown, L2 black, L3 grey, N blue, PE yellow-green.
  • Click a wire or a screw, and the wire will be highlighted, and at the bottom you will see where it comes from and where it goes. A screw without a wire has an orange ring.
  • The comb busbar (a dark strip above the top screws) connects neighboring MCBs of the same supply; while it is in place, the MCB cannot be moved. You can detach it in the properties, the Busbar row.
  • Neutral busbar and Earth busbar from the catalog replace the bottom busbars. The catalog also has AFDD with MCB (arc fault protection), 1P+N (a circuit device, like an RCBO) and Changeover switch I-0-II, 2-pole (for the incoming line, like an ATS).

What is important to know

  • If a circuit under an RCD takes neutral from the common busbar, a red chip will appear above the panel: the RCD will trip falsely. Put a separate Neutral busbar for the circuit.
  • Type S (selective) is available for RCDs: in front of the circuit RCDs and RCBOs exactly this type is needed.
  • For a circuit device, the rating, characteristic, name and cable belong to the circuit: an edit is visible both in Circuits and in Diagram.
  • Under the panel there is a composition table: QF, device, current, leakage, line, cable (not set in orange).