D4C-1901

Snap Action, Limit Switches - D4C-1901 application field and working principle

Snap action limit switches are electromechanical switches used for detecting energy levels, position, and rate of change in an electrical circuit system. The D4C-1901 series snap action limit switch is equipped with a microswitch mechanism made up of a spring-loaded pivoting actuator lever and a stationary contact assembly. This switch acts as a resistive element when used in an electrical circuit.

The working principle behind a snap action limit switch is quite simple. Incoming voltage is applied to the switch, usually via a device such as a relay or timer. When the input voltage reaches a predetermined level, the microswitch is actuated, allowing electrical current to flow through the switch and complete the electrical circuit. Depending on the application and the voltage applied, the switch can be preset to break an electrical connection at a low voltage and then to complete it at a higher voltage, or to break a connection at a high voltage and then to complete it at a low voltage.

The D4C-1901 series snap action limit switch is a rugged and reliable type of switch that is typically used in harsh and hazardous industrial environments. Its snap action design ensures quick and accurate performance even in extreme temperatures and environments. Its snap-action switch is built to last and also helps to maintain a consistent threshold activation point regardless of the amount of force that is applied.

This series limit switch is predominantly used in applications where it is important to have a precise measure of current, voltage, or rate of change. Typical applications include monitoring engine speeds, machine operations, and detecting the presence of objects in an automated factory. The switch’s adjustable operating range allows users to customize the parameters of the switch and make it compatible with different circuit conditions or equipment specifications.

The D4C-1901 series snap action limit switch is considered an ideal solution for high-precision control situations and is often used where extreme reliability and accuracy are required. Its RoHS compliance also makes it one of the most efficient, cost-effective, and environmentally friendly limit switch options available.