Littelfuse Special Function Relays 15

Special function relays are a type of electrical switch that can perform a specific function based on their design and construction. They are designed for specific applications that require unique features such as high voltage or current capacity, high-speed switching, or low power consumption.

Some examples of special function relays include time delay relays, latching relays, safety relays, and solid-state relays. Time delay relays are used to control the timing of circuits or processes and can be programmed to switch on or off after a certain amount of time. Latching relays, on the other hand, require a pulse of current to switch on and remain on even after the pulse is removed until a reset pulse is applied.

Safety relays are designed to interrupt power to a machine or process when a safety interlock is activated, helping to prevent accidents or injuries. Solid-state relays use electronic components such as transistors and diodes to switch high loads and are preferred in applications that require high speed, low noise, and long life.