Littelfuse fuses are known for high reliability, advanced surge protection, and broad application coverage, while Cooper Bussmann (Eaton) fuses excel in time-delay performance, high interrupting ratings, and specialized protection for motors and semiconductors. Both brands are industry leaders in circuit protection.
High Reliability & Safety: Littelfuse products are designed with military-grade reliability, tested for extreme conditions like high temperature and vibration.
Superior Surge Tolerance: Many Littelfuse fuses (e.g., Nano² series) can withstand very high surge currents (up to 1500A at 277V), making them ideal for sensitive electronics.
Broad Portfolio: Offers one of the widest ranges of circuit protection devices, from miniature fuses for electronics to industrial-scale solutions.
Innovation Leadership: Littelfuse pioneered compact, fast-acting fuses and continues to lead in automotive, industrial, and consumer electronics protection.
Time-Delay Technology: Their dual-element, time-delay fuses protect against both overloads and short circuits, while allowing harmless inrush currents (e.g., motor startup).
High Interrupting Ratings: Bussmann fuses can handle up to 300,000 amps interrupting capacity at 600V AC, ensuring safety in heavy industrial systems.
Motor & Transformer Protection: Especially effective for motors, transformers, and inductive loads, where temporary surges are common.
High-Speed Semiconductor Fuses: Specialized semiconductor fuses protect sensitive power electronics like inverters and drives, reacting extremely quickly to faults.
Compact & Versatile: UL Class J and other Bussmann series fuses provide compact footprints with optional fuse indication for easier maintenance.
