A device that transfers electrical energy from one circuit to another through electromagnetic induction, often used to increase or decrease voltage levels. Toggle switch
U-factor UL Listing Utility Pole A tall wooden or metal structure used to support overhead electrical wires and related equipment. A measure of the heat transfer rate through a material or assembly used to evaluate the insulating properties of windows, doors, and other building components. A certification provided by Underwriters Laboratories (UL) indicating that a product has been tested and meets specific safety standards.
The electric potential difference between two points in a circuit. It is the force that pushes electric current through a conductor and is measured in volts (V). Voltage
A type of resistor whose resistance value can be adjusted, allowing for control of the current flow in a circuit. Variable resistor
Providing adequate airflow to dissipate heat generated by electrical components, preventing overheating and improving the efficiency and lifespan of the equipment. Ventilation
Watt (W) Wire The unit of measurement for electrical power, named after James Watt. It represents the rate at which energy is used or generated. A conductive material, typically made of copper or aluminum, used to transmit electrical current between devices or components.
The horizontal axis in a coordinate system used to describe the position of an electrical component or device. An abbreviation for "transformer, " an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. An electronic device that uses X and Y coordinates to visually represent electrical signals or data. This can be useful for analyzing the performance of electrical systems or components. X-axis XFMR X-Y plotter
Yoke Y-Cable A structural component that holds electrical devices such as switches, receptacles, and outlets within an electrical box. It helps ensure proper alignment and secure installation. Another term for a Y-Adapter, this cable connects multiple devices or appliances to a single power source.
Yoke Locknut A threaded nut used to secure a yoke to an electrical box, ensuring the stability and proper positioning of electrical devices such as switches and outlets.
A semiconductor diode that allows current to flow in the reverse direction when a specific voltage is reached, commonly used for voltage regulation in electronic circuits. A wireless communication protocol used primarily for home automation and remote control of devices such as lighting, thermostats, and security systems. It operates in the sub-gigahertz frequency range and is known for its low power consumption and reliable performance. Zener Diode Z-Wave
A special type of transformer used to provide a neutral grounding point in a three-phase system. It has a unique winding configuration that allows it to handle unbalanced loads and reduce harmonics. Zigzag Transformer g Transformer