The main job is to turn on or off the flow of electricity in an electrical circuit. These devices are used in all types of equipment, from kitchen appliances to sophisticated industrial machines. A little bit of background on the device will help explain how it works.
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A microswitch is a type of switch that can be mechanical or electronic. Its simplest form is a toggle switch with a spring-loaded lever with two positions, one on and one-off. The lever rests in the center position until a force is applied to push it toward the on or off position.
When the lever is pushed, a set of contacts makes or breaks an electrical connection in the circuit some versions of this device use moving contacts. In contrast, others use stationary contacts and moving conductors.
(1) General Terms
Basic Switch
A small-size switch with a very small contact gap and snap-action mechanism and with a contact structure that switches by a specified movement and specified force enclosed in a case with an actuator provided on the exterior of the case. (Basic switches are often referred to as merely "switches" in this catalog.)
Switch with Contacts
A type of switch that achieves the switching function through the mechanical switching of contacts. Use as opposed to a semiconductor switch with switch characteristics.
Contact Form: The structure of the electrical I/O circuits of contacts used according to the type of application. (Refer to Contact Form table later in this section.)
Contact Form
The structure of the electrical I/O circuits of contacts used according to the type of application. (Refer to Contact Form table later in this section.)
Ratings
Value generally used as a reference for ensuring the characteristics and performance of switches, such as the rated current and rated voltage. Ratings are given assuming specific conditions (such as the type of load, current, voltage, and frequency).
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Resin Filled (Molded Terminal)
A terminal which is filled with resin after being connected to the internal circuit of the switch with a lead to eliminate exposed current-carrying metal parts and thereby to enhance the drip-proof properties of the switch.
Insulation Resistance
The resistance between discontinuous terminals, between terminals and non-current-carrying metal parts, and between terminals and ground.
Dielectric Strength
The threshold value up to which insulation will not be destroyed when a high voltage is applied for 1 minute to a predetermined measurement location.
Contact Resistance
The electrical resistance of the contact point of contacts. Generally, the contact resistance includes the conductive resistance of the spring or terminal section.
Vibration Resistance
Malfunction: The range of vibration for which closed contacts will not open for longer than a specific time when vibration is applied to a switch currently in operation.
Shock Resistance
Destruction: The range of shock for which the components of the switch will not be damaged and for which operating characteristics are maintained when mechanical shock is applied to a switch during transportation or installation.
Malfunction: The range of shock for which closed contacts will not open for longer than a specific time when shock is applied to a switch currently in operation.
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