Littelfuse Safety Relays
Littelfuse safety relays are used to monitor a safety circuit that includes devices like an E-Stop, Guard Door Switch, Light Curtain, or Two-Hand Control. When an input signal is received on the safety relay it will process the signal in duplicate and if necessary shut down an output to put a machine in a safe condition. This reduces the risk of injury, unintended motion, or the release of hazardous energy.
Littelfuse safety relays are rugged, compact, DIN rail mounted, and designed for continuous operation in an industrial environment. Some relays have functions such as automatic or manual reset, timer functions, control output monitoring, and LEDs for diagnostic purposes. This enables the customer to configure the relay for a specific application.
The Littelfuse safety relay can be connected directly to safety interlock switches and other safety devices to provide a safe shutdown when a switch is opened. The Littelfuse relay can then also connect to other control devices to complete a safe shutdown of the process. This will support compliance with functional safety standards and help manufacturers protect personnel and equipment.
FAQs
What are Littelfuse safety relays used for?
Littelfuse safety relays monitor inputs from safety devices like emergency stops, safety interlocks, and light curtains to trigger safe shutdowns of machinery when unsafe conditions occur.
How do Littelfuse safety relays differ from regular relays?
Safety relays include redundant logic and self-monitoring designed for fail-safe operation in safety circuits, whereas regular relays do not provide the same safety assurance.
What safety devices can be connected to Littelfuse safety relays?
Common safety devices include emergency stop buttons, safety door and guard switches, light curtains, and two-hand control systems.
Do Littelfuse safety relays support timer functions?
Yes, many Littelfuse safety relays offer timer capabilities, allowing delayed outputs or sequence control for complex safety logic.
Where are Littelfuse safety relays typically used?
They are used in industrial machinery, automated production lines, packaging equipment, robotics, and material handling systems for dependable safety monitoring and shutdown control.