120 VAC Transformers

A 120 VAC transformer refers to a device that transforms electrical voltage from 120 volts alternating current (VAC) to a different voltage level. Transformers are essential components in electrical systems for stepping up or stepping down voltage levels while maintaining the frequency of the AC signal.

In the context of a 120 VAC transformer:

1. Input Voltage: The transformer is designed to accept an input of 120 volts AC at a specific frequency (usually 60 Hz in North America).
2. Output Voltage: The output voltage depends on the transformer’s design. It could be higher or lower than the input voltage, depending on whether it’s a step-up or step-down transformer. For example, a step-up transformer might increase the voltage to, say, 240 VAC, while a step-down transformer might decrease it to, say, 24 VAC.
3. Turns Ratio: The turns ratio of the transformer determines the relationship between the input and output voltages. It’s defined as the ratio of the number of turns in the primary winding (input) to the number of turns in the secondary winding (output).
4. Usage: Transformers are used in various applications, including power distribution, voltage conversion, impedance matching, isolation, and more. For instance, they are commonly found in power distribution networks, electronic devices, appliances, and industrial equipment.
5. Design and Construction: Transformers consist of primary and secondary windings wound around a magnetic core. When AC voltage is applied to the primary winding, it generates a magnetic field in the core, inducing a voltage in the secondary winding.

We offer 120 VAC transformers from 1 VA to 10 KVA.