71MBS30-02B11S

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Rotary switches are devices that enable electrical circuits to be opened or closed by rotating a handle, knob or lever. A wide variety of common uses are known for these switches and they include controlling power and fan speed, as well as providing security and switching between audio elements.

The 71MBS30-02B11S rotary switch is a two-pole (double-pole) switch with six positions and an improved look to the common alternative. The switch is extremely reliable, making it the preferred choice for a variety of applications.

Application Field

The 71MBS30-02B11S is most commonly used in industrial and electronic applications such as in motor control, robotic arms, lighting and even security control systems. It is suitable for power transmission, control and automation purposes requiring a wide variety of contact configurations. Since the 71MBS30-02B11S offers a unique design and much higher current carrying capacity (50A) than conventional rotary switches, it is perfect for applications requiring high current, such as the control of industrial machinery.

This switch is also suitable for applications where contact bouncing may be an issue. Contact bouncing occurs when an electrical circuit is closed or opened more than one time before finally settling in the correct position – this causes damage to the switch as well as the device it is controlling. The 71MBS30-02B11S has a low contact bouncing, making it an ideal switch for devices requiring precision control.

Working Principle

The 71MBS30-02B11S rotary switch functions by passing current through the poles and contacts, until the rotary handle is rotated to the circuit’s desired position to break or make the circuit. The switch can be either ‘make’ or ‘break’ type, depending on the application.

The 71MBS30-02B11S uses an insulated case mounted on an insulated panel, which is fitted with a rotary handle that can be moved between six positions. Each position has contacts which can make or break the circuit. The contacts are made from silver alloy which is plated with precious metals, making them highly conductive, durable and reliable.

Inside the switch, two sets of contacts are mounted on a disk connected directly to the handle, which is then connected to two opposite-facing contact springs. Depending on the position of the rotary handle, the contact springs will push one pair of contacts to make contact with the two poles, or break connection. When the contact is made, the circuit is completed, and when the contact is broken, the circuit is broken.

The 71MBS30-02B11S is a reliable and versatile switch that is perfect for a variety of applications. Due to its design and excellent performance, it is the preferred choice for a vast number of applications.

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