Simon's catalogue covers the common variants used in an electrical installation. Unipolar and bipolar switches handle basic single-point on/off control; two-way switches and crossover switches allow a single circuit to be controlled from two or more positions; push-button switches are used in devices that require momentary activation, such as doorbells or timed circuits.
These options are complemented by dimmers, which regulate light intensity, and by specialist variants including blind switches, key-card switches, key-operated switches, rotary switches and pull-cord switches.































