LSF1A4

Snap Action, Limit Switches, LSF1A4 application field and working principle

The LSF1A4 is a snap action and limit switch, widely used in various safety applications. It has an adjustable lever arm, allowing for a variety of uses and applications and is also commonly used as snap-action type switch in alarm systems for security, signaling, and protection against hazardous conditions.

The LSF1A4 snap action and limit switch consists of a series of small parts, including two contacts: a normally closed (NC) and a normally open (NO). The lever arm, which is adjustable, is then attached to the switch via a pivot point. The other end of the lever arm is free to move in either direction; this is the activator.

When a force is applied to the lever arm, it travels up along the pivoting point and makes contact with either the NO or NC contact. At this point, the electrical circuit is complete and the switch is said to have “snapped”. The contacts then return to their original positions, restoring the switch to its original state.

The LSF1A4 snap action and limit switch can be used in a wide range of applications. It is commonly used in automotive applications, such as brake lights and headlight dimmers; in industrial systems, such as machine tools and safety relays; and in security systems, such as burglar alarms.

The LSF1A4 snap action and limit switch can also be used in automation control, where it is typically used to detect the position of a machine part. The switch is connected to a digital input on an automation controller, which then detects the position of the lever arm. This can be used to trigger a variety of different actions in the automation system, such as opening and closing valves or activating a motor.

The LSF1A4 also has a built-in overload protection. This protects the switch from excessive current or voltage, and prevents it from burning out due to excessive mechanical force being applied to the lever arm. It also protects the switch from short-circuiting.

The LSF1A4 snap action and limit switch is a versatile and reliable switch that can be used in a variety of applications. Its adjustable lever arm makes it suitable for a wide range of applications, and its built-in overload protection ensures that it will remain reliable for a long time.