svitsj

Svitsj is a device that makes or breaks an electrical circuit, enabling control of electrical equipment, isolation for safety, and routing of signals. In Norwegian usage, svitsj covers a range of switching devices, from simple mechanical toggles to electronic switches.

Common types include mechanical switches such as toggle, slide, push-button, and rotary switches. Reed switches close when exposed to a magnetic field. Solid-state switches use semiconductor devices to perform the opening and closing function without moving parts. Switches can be operated manually or automatically, and some are controlled remotely.

Contact configurations are described by form and throw, with SPST (single-pole single-throw), SPDT (single-pole double-throw), and DPDT (double-pole double-throw) being typical arrangements. Actuation can be momentary (returns to the resting state) or maintained (stays in position until actuated again). Form factors include panel-mounted, chassis-mounted, and surface-mount variants, with actuators designed for hand operation, automation, or remote control.

Applications span consumer electronics, household appliances, automotive controls, and industrial equipment. They are used to start or stop equipment, select circuits, or provide user interfaces in control systems. Safety, reliability, and electrical ratings are governed by standards in many regions (for example, IEC 60947 for low-voltage switches and related devices, and regional equivalents such as UL 508).

Etymology and usage: the term svitsj derives from the English word “switch” and has been adopted in Norwegian to refer to devices that open or close electrical circuits.