83274001

Ingress Protection:	--
Mechanical Life:	1,000,000 Cycles
Electrical Life:	--
Operating Position:	0.330" (8.4mm)
Operating Temperature:	-20°C ~ 125°C
Overtravel:	0.020" (0.5mm)
Differential Travel:	0.006" (0.15mm)
Pretravel:	--
Release Force:	10gf
Operating Force:	51gf
Features:	--
Series:	V4D
Termination Style:	Solder Lug
Mounting Type:	Chassis Mount
Actuator Type:	Round (Pin Plunger)
Voltage Rating - AC:	250V
Current Rating:	5A (AC)
Switch Function:	On-Mom
Circuit:	SPDT
Part Status:	Active
Packaging:	Bulk

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Snap Action, Limit Switches, Application Field and Working Principle

Snap action limit switches are used by nearly every major industry on the planet for a wide variety of applications, ranging from industrial automation to security systems. Snap-action switches use a combination of a metal contact and a mechanical spring-like actuator to detect when a certain level of force is applied to the switch. When the force is applied, the contact opens and closes, sending an electrical signal and opening and closing the circuit. Snap-action switches are particularly well suited for use in hazardous or explosive environments, as the contacts are enclosed and therefore resistant to extreme temperatures, high pressure, and other environmental conditions.

The snap-action limit switch is ideal for applications that require high accuracy and precision. This is because the switch\'s metal contacts generate electrical signals with very little force and very little noise, making it well suited for sensitive equipment used in automotive, industrial, and medical applications. It is also ideal for applications that require quick reaction times, as the switch can be activated with less than one second of force.

For the majority of snap-action limit switches, a metal contact is used as the switch element. The contact usually consists of two metal plates with a very small gap between them. When a certain predetermined force is applied to the switch, the two metal plates are forced together, bridging the gap and creating an electrical connection. The amount of force required to activate the switch can be adjusted depending on the application. For example, a switch designed for an automotive application may require much more force than a switch designed for a security system.

The amount of force that must be applied for a snap-action switch to activate is referred to as the "trip force." This can be adjusted by moving the switch’s actuator, which is the mechanical feature that causes the switch’s metal plates to be forced together when the required force is applied. The actuator consists of a spring-like mechanism that is attached to the housing of the switch, and is responsible for the switch’s “ triggered” motion when a certain force is applied to it. Some snap-action switches also have a “ restart” function that allows the switch to reset itself after the force has been removed.

One of the most attractive aspects of snap-action limit switches is their reliability. Since the electrical actuation is caused by mechanical force, the contacts of the switch remain in a closed or open state until the appropriate force is applied. This makes them ideal for applications in which frequent and continuous switching may be required, such as in certain industrial automation and security systems. Another advantage of snap-action limit switches is their small size, which makes them well suited for installations in areas with limited space or in equipment with tight access.

In conclusion, snap-action limit switches are well suited for a wide variety of applications due to their reliable, precise operation, their fast reaction times, and their small size. They are ideal for hazardous or explosive environments, as well as for applications with tight access and low operating forces. Although the trip force can be adjusted depending on the application, snap-action limit switches are generally best suited for applications that require extreme accuracy and reliability.

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