51SPT30-01-1-04S

Rotary Switches

A rotary switch is a switch in which the contacts are changed when the rotor is turned.A rotary switch may have multiple positions, and may include multiple circuits. The 51SPT30-01-1-04S is a 4-pole, 30-position rotary switch equipped with two handles.Its application field and working principle can be elaborated as follows:

Application Field

The 51SPT30-01-1-04S rotary switch is suitable for medium and high current and voltage applications, providing a reliable manual on-off control. It can be used in power management and switching applications, as well as communications, instrumentation, and automation systems. The switch is available in a range of voltages from 24V up to 575V.

Working Principle

The 51SPT30-01-1-04S switch employs a three-step switching mechanism. First, both handles must be in a up position. Then, when turning one of the two handles, a cam connected to the selection shaft moves along a path to the desired position. Finally, the selection shaft secures the cam and allows the switch to remain in the selected position. Depending upon the position of the switch, each of the four poles may be opened or closed.

The switch also has a torsion spring mechanism, providing a secure connection and requiring a certain amount of power to move the cam. This ensures that the switch stays in the desired position even when the switch is released.

When the switch releases, the torsion spring actuates the internal pawl and latch assembly to secure the switch in position.Furthermore, the switch has built-in safety features to provide reliable switching performance even out of service.

Conclusion

The 51SPT30-01-1-04S rotary switch is a 4-pole, 30-position rotary switch capable of reliable manual on-off control. It is suitable for mid and high current applications, and can be used in a variety of applications, such as power management, switching, communications, instrumentation, and automation systems. Furthermore, safety features are built-in to provide reliable performance out of service.