Littelfuse 8 A Resettable Fuse 30V dc, Radial Lead, 21.6mm Length RUEF800

Littelfuse RUEF800 Resettable Fuse 8 A 30V dc is a high-performance component designed to protect electrical and electronic circuits from excessive current loads and short circuits. This fuse utilizes PolySwitch™ technology within the RUEF series, featuring radial lead orientation which facilitates easy mounting on PCBs and wire-ended configuration.

With a trip current of 16A and hold current of 8A, it provides precise circuit protection by rapidly switching from a low-resistance state to a high-resistance state during fault conditions, effectively stopping current flow. The fuse automatically resets once the fault is cleared and the power is turned off, providing reliable ongoing protection without the need for replacement.

Its compact size with dimensions of 21.6mm length, 28.4mm height, and 3mm width allows integration into space-constrained electronic assemblies. Operating reliably in temperatures from -40°C to 60°C, it is well-suited for demanding industrial, automotive, medical, instrumentation, and telecom applications.

The fuse dissipates power up to 4W and exhibits extremely low resistance values, ranging between 0.005Ω minimum and 20mΩ maximum, ensuring minimal impact on circuit performance. Certified by multiple international standards including CQC, CSA, TUV, UL, and RoHS, this fuse meets stringent quality and safety requirements.

This device is maintenance-free and capable of automatic reset thousands of times, reducing downtime and maintenance costs. Main applications include security systems, power supplies and transformers, power switching devices, automotive and medical equipment, instrumentation, control systems, computers, peripherals, audio visual and telecommunications.

The fuse is designed to protect electronic circuits against overcurrent conditions. It features a trip current of 16A and a hold current of 8A. The device withstands voltages up to 30V dc with a time to trip of 18.8 seconds.

The compact dimensions include a length of 21.6mm, height of 28.4mm, and width of 3mm. Operating temperature ranges from -40°C to 60°C ensuring reliability in harsh environments. It has a minimum resistance of 0.005Ω and a maximum resistance of 20mΩ.

The power dissipation capacity is rated at 4W for sustained performance. Standards approved include CQC, CSA, TUV, UL, and RoHS compliance. Maintenance-free with the capability to automatically reset thousands of times. Suited for applications in security systems, power supplies, medical equipment, and telecommunications.

Browse the full range of Resettable Fuses at EnvMart for reliable circuit protection solutions from leading brands including Littelfuse.