Eaton introduced advanced pyro fuses, including a dual-trigger version that provides a significant safety and reliability advantage for electrified vehicles (EVs). Unlike traditional fuses that melt to interrupt a circuit during a fault, a pyro fuse operates similarly to an airbag, using an igniter and propellant to separate the main busbar and disconnect power rapidly.

Eaton’s dual-trigger pyro fuse goes a step further, incorporating a stand-alone backup trigger that enables it to separate short circuits without requiring an external command. This capability mimics the passive safety function of a traditional thermal fuse, ensuring an added layer of protection.

Eaton’s expanded circuit protection portfolio now includes these advanced pyro fuses alongside its Bussmann series EV fuses and Breaktor circuit protection technology, offering a complete suite of solutions for OEMs.

Breaktor circuit protection technology provides ultra-fast actuation—less than 4 milliseconds—for short-circuit faults up to 900 volts and 25,000 amps. Unlike traditional fuses, Breaktor is resettable like a circuit breaker, reducing costs and downtime for manufacturers and consumers.

Bussmann series EV fuses, designed for up to 1,400 amps and 1,000 volts, can be customized to meet specific OEM needs. Eaton’s expertise in thermal management and circuit protection enables flexible design modifications and scalable solutions.

Eaton has long been at the forefront of power management, leveraging its expertise in both electrical and vehicle systems to create solutions that help OEMs navigate the challenges of EV cost and performance optimization. Eaton’s eMobility portfolio is designed specifically to reduce system complexity, improve efficiencies, and enhance safety without compromising performance.

Beyond cost savings, reducing complexity plays a critical role in improving manufacturing efficiency. By simplifying electrical architectures and minimizing the number of components required, Eaton helps OEMs accelerate production timelines, reduce assembly costs, and lower the risk of supply chain disruptions.