These general purpose power relays control high-voltage appliances with low-voltage signals like exhaust fans, vacuums, and motors. They respond to input voltages to physically open or close their contacts to switch loads on/off to control power or sequencing.

These general purpose lighting control relays turn lights on/off when their connected switches are activated. They're commonly used to automate lights in closets, lamps, and other lighting applications.

These emergency lighting bypass/shunt relays circumvent normal power connections if power is lost, and turn lights on with a secondary load source. These relays are often used to activate lighting in hallways, exits, entrances, and stairways.