Current transformers are used to step down current in a very predictable fashion with respect to current and phase. They are generally used as inputs to current instruments

Current sources provide reliable current for electrical component testing and for powering specialized components

AC power connectors transfer alternating current through a variety of electronic devices. AC power connectors include simple AC inlets, outlets, and power entry modules

AC power cords carry alternating current from one area to another. There are many different standard plugs and voltages, depending upon the country

Current testers and detectors check for the presence of current flow in electrical circuits. They are also used to locate current in hidden wires and cables

Voltage and current signal conditioners amplify or modulate AC or DC current or voltage and process signals to improve transmission

Frequency-to-current converters accept a frequency (an AC signal) and produce an output current whose value is a function of the input frequency

AC power sources provide alternating power and typically have adjustable output values for the testing of component response at various voltage, current and frequency levels

Analog ammeters are metered instruments that measure current flow in amperes. They display current levels on a dial, usually with a moving pointer or needle

High voltage relays are used to transfer power for high voltage and high frequency applications. They are heavily insulated and consist of strong materials to increase contact life.

Protective relays and monitoring relays detect or monitor for abnormal power system conditions.

Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC). 

Power supplies are devices that produce AC or DC power.  This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters

Resistors are electrical components that oppose the flow of either direct or alternating current. They are used to protect, operate, or control circuits

DC to AC inverters are used for converting direct current (DC) into alternating current (AC). They are also known as DC to AC converters