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

Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors.

Relay boards (multiple relay modules) are computer boards with an array of relays and switches.

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

DC motors are most commonly used in variable speed and torque applications.

Battery and fuel cell test equipment consists of specialized test stations, stands or systems, monitors and component modules for performance or endurance testing.

Tachometers are used to measure the velocity of a rotating object.