SB25-015H/UC

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Pushbutton switches play a crucial role in a wide range of electrical systems; they are used to create specific control functions in a circuit. Among the most widely used pushbutton switches today is the SB25-015H/UC. This switch, manufactured by Omron, is particularly suited for low-current applications – either AC or DC – up to 125VDC. These switches are designed to be used with a wide range of distinct components, including relays, solenoids, and drive motors.

The typical application for the SB25-015H/UC is contact closure, to make a specific contact when the switch is closed. These switches are quite often used as momentary switches – ones engage for only brief periods of time, or for a single actuation. They are also often used for positive, two-way actuation when the switch is open, thereby protecting the contacts of the switch against any damage.

How it works

The SB25-015H/UC features a plunger switch, actuated via an external button, that triggers a circuit connection. The on/off momentary action is the typical application for this switch, although alternative and more complex function, such as position sensing and output circuits, can be produced with a little bit of design creativity.

Inside the SB25-015H/UC, the plunger is connected to a spring-loaded contact. The spring is mounted on a plastic plunger housing and is connected to a spring-loaded ball bearing. This particular type of switch is known as a "latching, single pole, single throw" switch. When the plunger is pressed, the ball bearing comes into contact with the spring-loaded contact, engaging the circuit. When the plunger is released, the ball bearing disengages from the contact, breaking the circuit.

The SB25-015H/UC is rated for 1 million operations, providing a reliable and stable connection in a wide range of applications, from simple on/off switching to more complex circuit designs. It features a short circuit protection circuit, to prevent any damage to the switch over time. The switch is also rated for IP67/UL type 4 protection, offering a high level of protection against possible outside contaminants that could damage the switch.

Conclusion

The SB25-015H/UC is an ideal pushbutton switch for a wide range of applications. It offers reliable and stable connection for low-current applications, up to 125VDC. Its on/off momentary action and short circuit protection make it well-suited for contact closure and other applications that require a reliable circuit connection. The switch is also rated for IP67/UL type 4 protection, providing an extra layer of protection against potential contaminants. All these features make the SB25-015H/UC an excellent choice for a wide range of pushbutton switching needs.

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