Next-Level Protection for High-Voltage Systems
As industries accelerate toward full electrification, the need for safer, faster, and more efficient circuit protection grows rapidly. High-voltage systems—especially in electric vehicles, aerospace, and industrial equipment—face rising risks due to increased current loads. To address this, Sensata Technologies has introduced a breakthrough in electrical safety: the STPS500 Series PyroFuse. This next-generation pyrotechnic circuit breaker delivers ultra-fast response times, robust current handling, and a compact form factor, redefining protection in high-energy environments. Its rapid disconnect time and powerful fault mitigation make it a vital component in today’s demanding electrical landscapes.
Engineered for Speed, Safety, and Reliability
The STPS500 PyroFuse sets a new standard in circuit protection by disconnecting electrical loads in under 1 millisecond. This incredibly fast reaction time is crucial in preventing damage during short circuits or collisions. Unlike traditional thermal fuses, the PyroFuse operates with greater reliability and speed, making it especially suitable for high-voltage automotive and aerospace systems. With a continuous current capacity of 500A and the ability to interrupt currents up to 20,000A at 500V, it provides unmatched safety performance in compact and lightweight packaging.
Designed for Demanding Applications
Sensata’s PyroFuse doesn’t just protect—it performs. It’s built for modern high-energy systems and offers key advantages, including post-isolation resistance above 50MΩ at 1000V, superior arc suppression, and seamless integration with Sensata’s existing line of high-voltage contactors. These features help ensure consistent safety and system integrity, even after fault interruption. The PyroFuse also allows OEMs to streamline supply chains by sourcing both breakers and contactors from a single provider.
Compact Innovation That Supports the Future
The STPS500’s compact and lightweight design ensures it fits effortlessly into existing architectures, especially in space-constrained environments like EV battery systems or aerospace electronics. Its launch marks a major step forward in electrical safety innovation. By enhancing reliability and protecting components more effectively, Sensata’s PyroFuse is set to become a cornerstone in the future of electrified mobility and industrial automation.
