SB221TNO

Pushbutton Switches

A pushbutton switch is a simple device that consists of two contacts that are physically connected by a metal or plastic housing when the button is pressed. These switches are commonly used in a variety of applications, including controlling lights and motors, initiating alarms, signaling when a system is running, and providing feedback to the user. The SB221TNO pushbutton switch is a versatile switch that is used in a wide range of applications.

SB221TNO Overview

The SB221TNO is a double-pole, normally-open pushbutton switch. It features a rugged, compact housing and is built with gold-plated contacts for reliable operation and greater accuracy. The SB221TNO is designed for use in general switch applications, and can be used with a variety of switches. The switch is rated for 8 amps at 28 VDC or 125 VAC, and has an operating temperature range of -55 to 105 degrees Celsius (-67 to 221 degrees Fahrenheit).

SB221TNO Application Field and Working Principle

The SB221TNO pushbutton switch is most commonly used in applications in which a normally-open (NO) switch is required, such as lighting and motor controls, alarm systems, and when providing feedback to the user. The switch is also commonly used as an emergency stop switch, such as on machinery or equipment.

The SB221TNO operates by closing the connection between the two contacts when the button is pressed. This causes the circuit to be completed and the flow of current is enabled. When the button is released, the contacts open and the connection is broken, interrupting the circuit.

Conclusion

The SB221TNO pushbutton switch is a versatile and reliable switch that can be used in a wide range of applications. Its compact design, gold-plated contacts, and rugged housing make it suitable for a variety of switch applications, including lighting and motor control, alarms, and emergency stop systems. With its convenient and reliable design, the SB221TNO can provide reliable performance for a variety of applications.