MS085R105F040S1A

Snap Action, Limit Switches

MS085R105F040S1A is a type of snap-action limit switch, used to detect the presence of an object by mechanically snapping over a set point. Snap-action switches detect the presence or absence of an object by detecting the physical action of a snap-action mechanism. Designed to provide accurate and repeatable switching over millions of cycles, snap-action switches are commonly used in industrial applications in both open and enclosed environments.

Application Field

Snap-action switches are used in a wide variety of applications, ranging from industrial to consumer-grade. Some typical uses of snap-action switches are in factory automation controls and switch panels, monitoring and measuring industrial equipment, control circuit interlocks, door and window switches, medical equipment, and automotive applications. In these applications, snap-action switches are often used as safety devices, interrupting a possibly dangerous process or condition if an operator leaves a station or if machinery malfunctions.

The MS085R105F040S1A has a particularly widespread use in the elevator industry. Its compact, waterproof and dust-proof design make it an excellent choice for use in the harsh environment of an elevator, where it is used to detect and control lift car position. The device is also an excellent choice for other safety-critical applications in industrial, aviation, marine and automotive industries.

Working Principle

The MS085R105F040S1A switch operates using a snap-action mechanism, which is driven by a coiled steel spring or metal bellows. When the switch is actuated, the force of the spring or bellows drives an actuator arm to a determined set-point. This is known as the “Snap Action”. When the actuator arm reaches the set point, it trips the mechanism, which changes the state of the switch.

The switch is designed to enable snap action in both directions, from the OPEN position to the CLOSED position, or from the CLOSED position to the OPEN position. This allows for precise and repeatable switching in both directions, with a maximum switching speed of 0.3ms, providing reliable and repeated operation in a wide range of use cases.

The MS085R105F040S1A switch is designed for minimum contact wear and long-term reliability, and adopts a sealed design so it can operate in environments with temperature ranges from -40°C to +85°C. The device’s double-break contact design increases the number of actuation cycles to tens of millions.

Conclusion

The MS085R105F040S1A is a type of snap-action limit switch. It is a compact, waterproof, and dust-proof switch, designed to provide accurate and repeatable switching over millions of cycles. Its double-break contact design increases its actuation cycle life to tens of millions. The switch is used in a wide range of applications, including factory automation, control circuit interlocks, door/window switches, medical equipment and automotive applications.