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

Electrical receptacles, outlets, and wall sockets accept plugs and provide current to run electrical devices

Single phase uninterruptible power supplies (UPS) sit between an AC outlet (i.e., a wall outlet or power strip) and an electronic device (e.g., computer, server, or phone equipment) to provide power conditioning, back-up protection and distribution for electronic equipment loads

Industrial liquid handling pumps are classified in many different ways, and are distinguished by the media pumped and the fluid motive mechanism (dynamic or displacement).

Hydraulic power units provide pressurized flow to hydraulic motors, cylinders, and other components

DC powered pumps use direct current from motor, battery, or solar power to move liquids such as acids, chemicals, lubricants and oil, as well as water, wastewater, and potable water

Water pumps are designed to move water that does not contain suspended solids or particulates. Applications include water supply, irrigation, land and mine drainage, sea water desalination, and condensate transport.

Electrical connectors are devices that join electrical circuits together. Male connectors plug into receptacles, jacks, and outlets. Female connectors contain sockets to receive other devices

Hydraulic pumps deliver high-pressure fluid flow to the pump outlet. Hydraulic pumps are powered by mechanical energy sources to pressurize fluid

Specialty brushes use specialized or proprietary technologies, or feature brush designs for specific applications or industries.

Industrial cooling systems and equipment includes air-to-air, liquid-to-air, and liquid-to-liquid heat exchangers; ducts and/or pipes; and other devices for removing heat from a system that contains a heat source.

Electromechanical counters and electromechanical timers accept inputs to operate mechanical display, such as rotating wheels or knobs.

Circulation heaters are used to heat moving or circulating fluids.

Air hose is used in pneumatic systems and controls, or as supply lines for pneumatic devices and tools.

Utility pumps are used in many applications such as dewatering low-lying areas, pool covers, and sumps. They are not designed for continuous use.