Substation
Transformers from 10 kW to 1 GW with losses, temperature and protection, grid stabiliser, switchgear with a live network diagram and distribution boxes with load shedding.
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Power
Wall box between a main line and four sub-networks: feeds in or supplies – never more than 95 % of the weakest cable, with a data bridge for IC10.

A wall box between a main network and four sub-networks. It works like a circuit breaker, but instead of switching off it limits: no connection ever carries more than 95 % of the weakest cable in its network. Solar and wind fields on thin cables can feed into one heavy main line together, or small networks for doors and lights can hang off the main line – without a big transformer and without losing the data connection.
Connections
Mode per output
Data bridge: devices of all connected networks stay visible to IC10 and logic, also across several regulators in a row. Power stays separate.
Six-page display, LEDs per output, full IC10 control and console commands. All model labels, the display and device names appear in German or English, depending on the game language. The server and all players need the mod.
Full guide: Power Regulator in the wiki
The wall box is 22 cm deep and stays visible in front of finished walls. Cable inlets sit exactly on the cable axis.
First release: wall box with MAIN and four outputs (SUPPLY, FEED IN, OFF), 95 % cable protection, data bridge, display, LEDs, arrows and IC10.
The regulator is small, has four outputs and works out the limit by itself: no connection ever carries more than 95 % of the weakest cable in its network. It works in both directions – SUPPLY from the main line or FEED IN into the main line – and with the data bridge IC10 still sees the devices behind the regulator. A transformer separates the data too. More in the guide.
The consumers in that sub-network want more than the cable carries. The regulator then supplies exactly the limit – 4.75 kW with normal cable – and, as usual in the game, consumers switch off when there is not enough power. The cable does not burn out. Fix: lay the sub-network with heavy cable or split the consumers over two outputs.
Transformers from 10 kW to 1 GW with losses, temperature and protection, grid stabiliser, switchgear with a live network diagram and distribution boxes with load shedding.
Reactor, steam turbine and cooling tower for about 1 MW of power, plus a large reactor and a 1.5 MW turbine – with radiation, a radiation shield gate, meltdown and nuclear waste.
Gas pipe, liquid pipe and power cable in one bundle: one line instead of three, up to 500 kW or unlimited.