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Pushbutton Switches

A pushbutton switch is an electrical switch which, when activated, breaks a circuit and completes the circuit when released. Pushbutton switches range from momentary action switches to latching and even presence sensing switches. Pushbutton switches are widely used in various industries including automotive, HVAC, aerospace and even in the consumer electronics industry.

SCB25P15B-4FA application field and working principle

The SCB25P15B-4FA is a pushbutton switch designed for momentary action. It is a single-pole miniature pushbutton switch with a retracted plunger for ON-OFF switching, available in illuminated or non-illuminated types. The switch closes when it is pushed down and opened when it is released, making it suitable for many applications such as controlling motors or opening/closing doors. The SCB25P15B-4FA is rated at 15A/250VAC, making it suitable for many applications that require a high load capacity. The switch is also available in SPDT, DPDT and 3PDT models.

The SCB25P15B-4FA uses a keyboard-style PCB mounting type. The contact is single pole, the plunger is sealed so that no dust or dirt can enter the inside of the switch, and the plunger is connected with a durable steel spring. The switch also has an adjustable contact force, so it can be adjusted for a precise operation.

When a user presses the switch, the internal contacts close and the switch is activated. The switch is then released, the internal contacts open, and power is cut off. The switch is designed for use in harsh environments, with a UL rating of IP67 meaning it is dust-proof, water-proof, and rated for use in temperatures from -25°C to +85°C.

The SCB25P15B-4FA is suitable for any type of momentary-action application including doors, switches, and motors. It is also available in illuminated models, so it can be used in applications that require an indicator light. The switch is also RoHS compliant, making it suitable for safety-critical applications.

In conclusion, the SCB25P15B-4FA is a robust and reliable momentary pushbutton switch, suitable for many applications where a high-load capacity is required. Its rugged construction, adjustable contact force, and UL rating make it an ideal choice for any industrial application. This switch is suitable for both indoor and outdoor use and is compatible with many popular automation protocols.

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