In electronics, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts. Each set of contacts can be in one of two states: either 'closed' meaning the contacts are touching and electricity can flow between them, or 'open', meaning the contacts are separated and nonconducting.
A switch may be directly manipulated by a human as a control signal to a system, such as a computer keyboard button, or to control power flow in a circuit, such as a light switch. Automatically-operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. For example, a thermostat is an automatically-operated switch used to control a heating process. A switch that is operated by another electrical circuit is called a relay. Large switches may be remotely operated by a motor drive mechanism. Some switches are used to isolate electric power from a system, providing a visible point of isolation that can be pad-locked if necessary to prevent accidental operation of a machine during maintenance, or to prevent electric shock.
Limit Switch
![TZ-8 Limit Switch TZ-8 Limit Switch](../images/products/tz8-limit-switch.jpg)
![CSA Limit Switch CSA Limit Switch](../images/products/csa-limit-switch.jpg)
![CLS Limit Switch CLS Limit Switch](../images/products/cls-limit-switch.jpg)
![CWL Limit Switch CWL Limit Switch](../images/products/cwl-limit-switch.jpg)
![CHL Limit Switch CHL Limit Switch](../images/products/chl-limit-switch.jpg)
![TZ-6 Sealed Limit Switch TZ-6 Sealed Limit Switch](../images/products/tz-6-limit-switch.jpg)
![CZ-3 Compact Prewired Limit Switch CZ-3 Compact Prewired Limit Switch](../images/products/cz-3-compact-prewired-limit-switch.jpg)
Micro Switch
![CZ Micro Switch CZ Micro Switch](../images/products/cz-micro-switch.jpg)
![CM Micro Switch CM Micro Switch](../images/products/cm-micro-switch.jpg)
![CS Micro Switch CS Micro Switch](../images/products/cs-micro-switch.jpg)
Dip Switch
![Dip Switch Dip Switch](../images/products/dip-switch.jpg)
Toggle Switch
![Toggle Switch Toggle Switch](../images/products/toggle-switch.jpg)
Interlock Switch
![CZ-93 Safety Key Interlock Switch CZ-93 Safety Key Interlock Switch](../images/products/cz93-safety-key-interlock-switch.jpg)
Rotary Switch/ Cam Switch
![Rotary Switch/ Cam Switch, LW26 Rotary Switch/ Cam Switch, LW26](../images/products/rotary-switch.jpg)