Littelfuse manufactures a variety of time delay relays designed to control power to different types of electrical loads. These time delay relays include multi-function, on-delay, delay-on-make, delay-on-break, single shot, interval, recycle, percentage, dual-function, HVAC, and coin vending. The multi-function relays provide the option of choosing among functions and time delay ranges. The electro-mechanical relays offer a number of different functions and ensure isolation between input and output. The solid-state relays have no moving parts to arc or wear out over time and are fully encapsulated.
Littelfuse delivers vital products to address customer needs for protection, safe control, and distribution of electrical power in industrial applications. The Protection Relay and Control product portfolio includes several alternating timer series in the time-delay relay suite of products. The alternating timers are time-delay relays that alternate the operation of two loads, sharing their run time. This product group includes the following series: HRIS, dedicated delay-on-break; and KRPSA...
Counters made by Littelfuse use microcontrollers to ensure excellent repeat accuracy. The solid-state reliability of these single-function time-delay relays makes them ideal choices for applications requiring millions of accurate operations over many years.
Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function &Delay control relays product portfolio includes 12 series of delay-on-break time-delay relays that start delay cycles when input voltages are removed. Each version boasts excellent repeat accuracy. Available features include solid-state components, encapsulation, and LED indicators. Browse the Littelfuse delay-on-break relay selection to find...
Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function & control relays product portfolio includes 19 series of delay-on-make time-delay relays that start delay cycles when input voltages are applied. Each version boasts excellent repeat accuracy. Available features include microcontroller-based circuitry, solid-state components, encapsulation, and LED indicators.
Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function & control relays product portfolio includes 2 series of delay-on-make/delay-on-break time-delay relays that work in ac and dc systems. Each version boasts excellent repeat accuracy. These relays can be used to start a motor when a button is pushed and allow the motor to operate for a set period of time. Available features include microcontroller-based circuitry...
Littelfuse delivers vital products to address customer needs for protection and safe control of electrical power in industrial applications. The Single Function and Control Relays product portfolio includes two delay-on-make/interval series in the time-delay relay suite of products. These are dedicated, dual-function relays with microcontroller-based circuitry and excellent repeat accuracy. They offer delay-on-make and interval-delay functionality. This product group includes the ESD...
Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function & control relays product portfolio includes six series of time-delay relays engineered specifically to control the flow of electricity to compressors in air conditioners, heat pumps, and refrigeration units. These relays help increase the lifespan of equipment by preventing damage caused by rapid compressor cycling. Options include relays with solid-state circuitry ...
Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function & control relays product portfolio includes 16 series of interval time-delay relays with excellent repeat accuracy. These relays apply power to circuits for set periods of time. Available features include microcontroller-based circuitry, solid-state components, encapsulation, and LED indicators.
Littelfuse delivers vital products to address customer needs for protection and safe control of electrical power in industrial applications. The Single Function and Control Relays product portfolio includes four multifunction, time-delay relays designed to control the flow of electrical power. The knob- or switch-adjustable, multifunction series — ASQU/ASTU, DSQUA, TRDU, and TRU — offer the option of choosing among a variety of functions, voltages, and time-delay ranges. The versatile...
Littelfuse delivers vital products to address customer needs for protection, safe control, and optimal distribution of electrical power in industrial applications. The Single Function and Control Relays product portfolio includes percentage, time-delay relays that deliver on those needs with advanced technology and proven reliability. The PTHF and KSPSA series relays provide superior protection with excellent repeat accuracy and demonstrated stability. These relays feature ...
Littelfuse delivers vital products to address customer needs for protection, safe control, and optimal distribution of electrical power in industrial applications. The Single Function and Control Relays product portfolio includes 16 different recycle, time-delay relays that provide excellent repeat accuracy and proven recycling interval performance. These recycle timers feature microcontroller-based circuitry, solid-state components, and are fully encapsulated to protect against...
Littelfuse delivers vital products to address customer needs for protection, safe control, and optimal distribution of electrical power. The Single Function and Control Relays product portfolio includes three different retriggerable (retrig), single-shot, time-delay relays that provide excellent repeat accuracy and proven stability. These retrig, single-shot timers feature microcontroller-based circuitry, solid-state components, and are fully encapsulated to protect against shock, vibration...
Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function and control relays product portfolio includes 13 series of single shot time-delay relays with excellent repeat accuracy and proven stability...
