SDT004 Switches

SDT004 switches are a type of snap action, limit switches specifically designed for a wide range of applications. They are particularly suitable for applications in which a variety of circuits must be operated with a single actuation. The switches employ a reed contact system, with a contact rating of 5 A/250 VAC or 2 A/24 VDC, with a mechanical life expectancy of 1 million operations. The maximum allowable current and voltage depend on the specific model of the switch.

Design

The design of the SDT004 switch is particularly sturdy, consisting of a plastic case onto which is mounted a stainless steel plunger. Inside the case is the reed contact system, which consists of two reeds positioned opposite each other and held in place by an adjustable armature. The contacts are hermetically sealed and the switch is mounted in a sealed housing for superior protection. The switch also has an adjustable return angle, which allows for a variety of applications.

Operation

The operation of the switch involves the use of a manually or mechanically operated plunger, which is connected to a small lever within the switch. When the lever is engaged, a small amount of force is applied to the reeds, which causes them to move in opposite directions, thereby opening or closing the contacts. This action is referred to as “snap action”, and this type of switch is ideal for high-speed applications. The adjustable return angle allows the user to determine how much force is needed to activate or deactivate the switch.

Applications

The SDT004 switch is suitable for a variety of applications, including transportation vehicles, office equipment, printing presses, medical equipment, industrial controls and robotics. It can be used in the control of motors, excess current protection, temperature control and other applications requiring a switch capable of operating under extreme temperature and vibration conditions.

Conclusion

The SDT004 switch is a reliable and durable snap action, limit switch designed for a wide range of applications. It has a contact rating of 5 A/250 VAC or 2 A/24 VDC, a mechanical life expectancy of 1 million operations, and an adjustable return angle. The switch is suitable for a variety of applications, including transportation vehicles, office equipment, printing presses, medical equipment and industrial controls.