Littelfuse understands that your needs are specific to your own design. To ensure that those needs are met, we’ve developed the world’s most complete portfolio of products.
The Industrial division of 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 a comprehensive line motor and pump protection relays, arc-flash relays, ground fault relays, feeder protection, pump controllers, time delay relays, flashers and tower lighting, and more to minimize electrical safety hazards, limit equipment...
High current and high voltage DC contactor relays for electric, hybrid, and industrial applications such as charging station, battery power supply, DC power control, circuit protection, and other switch controls. Can also be used in uninterruptible power supply and other electronic control systems...
The Littelfuse SSAC Flashers include solid-state and relay output controls with fixed and adjustable flash rates. They are used to control inductive, incandescent, or resistive loads in a variety of applications. The Littelfuse SSAC Beacon Flashers and Lamp Monitors have proven their reliability through years of use on communication towers, smake stacks, cooling towers, tall buildings, bridges, and utility towers. The Lamp Monitors provide remote monitoring of lamps in these tower and...
Littelfuse manufactures the broadest and most innovative selection of fuses to serve nearly every possible application...
Enable easy fuse installation and replacement with our comprehensive line of fuse blocks, fuse holders, and fuse accessories for automotive, electronic, and industrial applications...
Gas discharge tubes dissipate voltage transients through a contained plasma gas. They have high insulation resistance plus low capacitance and leakage to ensure minimal effect on normal operation of equipment. Littelfuse devices offer a small footprint and are available in leaded and surface mount configurations, with high surge handling capability. We offer both low surge GDTs and medium surge GDTs. Their fast response to transient over-voltage events, and ability to dissipate...
Littelfuse liquid level control relays are used to control conductive liquid pumping operations using either floats or conductance probes. They can be used in pump-up or pump-down applications. Our seal leak and leak/temp relays provide protection against seal leaks and over-temperature by monitoring sensors within the pumps and providing early warning or disabling the pumps. See the models available here [link to liquid level control page]. Interested in learning more about our p...
Supplemental monitors are single function devices that only look at one abnormal condition and either alarm or provide a means to remove electric power. Visual indication can also be used. The purpose of a monitor is to provide an efficient solution to a dedicated problem. Monitors work together with existing protection, such as fuses, circuit breakers, or protection relays to enhance electrical system safety and performance by monitoring its components. The Littelfuse NGR...
Standard High Current Relays / Bis-stable Latching / Plug-in Relays / Solid State / High Power / High Voltage...
Littelfuse offers an extensive portfolio of Automotive Sensors that includes a wide range of automotive and commercial vehicle products designed to monitor the passenger compartment occupants and environment as well as the vehicle’s powertrain, emissions, speed and suspension...
Latching Solenoid - Relays are commonly referred to as a remote-acting switches and Littelfuse manufacturers a broad range of styles to meet your application. To ensure you are utilizing the proper remote-acting switches, review the attributes in the specifications tab below against your application requirements....
Our surge protection devices (SPDs) and modules are designed to provide protection from transient overvoltage. The modules are intended for use in surge protectors for outdoor and commercial LED lighting fixtures while the SPDs are for branch circuits in industrial facilities...
The electrical and electronic switches section includes all kinds of manually-operated, foot-operated, and mechanically-operated switches; and switches operated by temperature or pressure. See RELAYS section for remotely-operated switches. Browse our selection of electrical and electronic switches below...
Littelfuse acquired SSAC in 2014, a timer manufacturing industry leader known for its reliable designs that provide long service lives with low maintenance costs. SSAC has been an industry leader since its inception more than 40 years ago. These reliable designs allow SSAC to back products with an impressive 10-year warranty...
Relay current transformers help to detect ground fault currents and reduce saturation....
To assure reliable operation, transient voltage suppression should be considered at early stages of the design process. This can be a complex task as electronic components are increasingly sensitive to stray electrical transients. The designer must define the types of transient threats and determine what applications are needed while meeting the product agency norms and standards. Varistors are increasingly used as the front-line solution for transient surge protection...
