ElectraSim v1.6: Dark Mode, RCBOs, and Smarter Switching
ElectraSim v1.6 adds dark mode across the app and website, a new RCBO component, a realistic push button, and a clearer simulator comparison guide.
How Does a Push Button Switch Work? Momentary Contacts
Learn how momentary push buttons work, the difference between normally open and normally closed contacts, and how they control doorbells and machinery.
ElectraSim v1.5: Faster, Easier, and More Accessible
ElectraSim v1.5 feels smoother on larger circuits, improves keyboard use, keeps saving and sharing private, and makes learning content easier to explore.
Guided Circuits in ElectraSim: Learn Wiring by Loading Real Circuit Templates
ElectraSim now includes Guided Circuits: ready-made circuit templates with in-app checklists for lamps, switches, RCD fault checks, contactors, timer bells, and more.
How to Wire a Two-Way Switch: Complete Guide with Diagrams
Two-way switching lets you control one light from two locations — the classic staircase circuit. This guide explains exactly how two-way switch wiring works, the role of COM, L1, and L2 terminals, strapping wires, and how to simulate the full circuit in a free electrical circuit simulator.
What is a Contactor and How Does It Work?
A contactor is an electrically controlled switch built for high-power loads. This guide explains how contactors work, where they're used, how they differ from relays and MCBs, and how to simulate a contactor circuit in a free electrical circuit simulator.