TW1250KA

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Rotary Potentiometers and Rheostats are electrical devices designed to provide fine control of current and voltage in an electrical circuit. The TW1250KA is an example of such a device. Essentially, it is a precision electrical resistance device used for electronic control. It is intended to be used in a variety of applications to provide precision control ranging from the simple adjustment of a voltage variable, to complex resistive control for specific applications.

Potentiometers are basically variable resistors; they vary resistance in relation to a wiper position, or armature, along a track comprising a resistive element. Rheostats, on the other hand, are adjustable resistors that vary only one element at a time, a resistance. The TW1250KA combines many of the components of both Potentiometers and Rheostats into one device.

The TW1250KA features a dual concentric shaft design and is capable of controlling two different levels of voltage. The device has an operating temperature range of -55⁰C to +125⁰C, a voltage rating of 400V AC/DC, and a wattage of 1W. It contains three internal potentiometers and two external resistors for control and a wiper contact.

The operation of the TW1250KA involves the use of two external resistors and a wiper contact. When the wiper arm is placed on the track to adjust the desired level of resistance, the two external resistors in the device are connected in series. This forms an electrical bridge, allowing the device to control the current going through the circuit. By adjusting the position of the wiper arm on the track, it’s possible to adjust the voltage and current flowing through the circuit.

The TW1250KA is a precision resistor device and is designed for applications where precise control and accuracy is required. It is especially useful when used in applications that involve multiple voltage levels. As the device is adjustable, it is extremely useful for applications that require fine adjustments to be made on a regular basis. Common applications include lighting and dimming control, automotive lighting systems, HVAC controls, and even medical equipment.

The TW1250KA is a highly versatile device that combines the features and functions of both Potentiometers and Rheostats into one device. It is ideal for applications where precise control is required and where multiple levels of voltage or current need to be adjusted accurately. The device features a dual concentric shaft design and two external resistors which allow for precise control over the voltage levels in the circuit. Its operating temperature range, voltage rating and wattage make it suitable for a wide range of applications and the device is also highly reliable.

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