Time delay relays and solid state timers use solid state electronic devices to provide a time delay

Electronic counters and electronic timers are completely electronic units for performing a variety of counter or timer functions.

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

Solid state relays (SSR) or semiconductor relays are semiconductor devices that can be used in place of mechanical relays to switch electricity to a load in many applications

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

Electromechanical relays are devices that complete or interrupt a circuit by physically moving electrical contacts into contact with each other

Reed relays are electrically-operated switching devices that consist of two thin, magnetic strips (reeds) encapsulated in a glass envelope. They are used to switch industrial components such as solenoids, contactors and starter motors

Relay boards (multiple relay modules) are computer boards with an array of relays and switches. They have input and output terminals and are designed to control the voltage supply

Specialty relays and accessories are specialty or proprietary products and accessories related to relays

DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors.

Relay sockets are devices that accept relays, electromechanical switches in which the variation of current in one electric circuit controls the flow of electricity in another circuit

Overload relays prevent an electric motor from drawing too much current and overheating; includes thermal and solid state overload types

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

Delay lines are devices used to slow down a signal by a time interval in an electrical network. There are two basic delay line technologies: passive and active. 

Safety relays and control modules differ from conventional relays in that they have force-guided or positive-driven contacts