The global 24V circuit breaker market welcomes a wave of technological innovation: intelligence, efficiency, and multi scenario applications become highlights

1、 CATL Cross border Innovation: 24V Heavy Truck Battery Supporting Power Management Solution
CATL, which dominates the field of new energy, will launch the Sodium New 24V heavy-duty truck start stop integrated battery on Super Technology Day in 2025, and for the first time apply sodium ion battery technology to commercial vehicle power systems. This battery not only enables one key start in extremely cold environments of minus 40 ℃, but also optimizes circuit protection through a supporting intelligent management system. Its built-in real-time monitoring function can remotely control charging and discharging through a mini program, and integrates overload protection mechanism, significantly improving the safety and economy of heavy-duty truck circuits. The total lifecycle cost is reduced by 61% compared to traditional lead-acid batteries.

2、 Infineon releases 24/48V intelligent power switch: redefining circuit protection standards
Semiconductor giant Infineon launches Power PROFET ™ +  24/48V ultra-low resistance intelligent power switch series, designed specifically for hybrid and electric vehicle models. This product adopts TO leadless packaging, with a low on resistance of 1.5m Ω and supports millions of switching operations, far exceeding the lifespan of traditional relays. Its built-in short-circuit, overcurrent, and overheating protection functions, combined with an AI driven diagnostic system, can monitor changes in power load in real time and pass ISO 26262 safety certification, providing high reliability assurance for automotive power distribution systems.
3、 Tianzhuo Digital Electromagnetic Circuit Breaker: World's First Technology Leading Smart Electricity Use
The fourth generation digital electromagnetic circuit breaker BTW5 released by Hangzhou Tianzhuo is based on permanent magnet solid-state semiconductor chips, achieving microsecond level response speed and 10KA breaking capacity. Its backpack free design can directly replace traditional air switches, with built-in bimetallic overload protection and adaptive trip mechanism, supporting adjustable parameters for overvoltage, undervoltage, leakage, and temperature. This product has been applied to low-voltage terminal distribution in smart cities and industrial parks, with a total deployment of over 200000 units, promoting the digital and low-carbon transformation of power management.
4、 Industry application expansion: from commercial vehicles to smart grids
The innovation of 24V circuit breaker technology is accelerating its implementation in multiple fields:
Smart Grid: China Power Construction has recently launched a procurement project for circuit breakers for Chongqing Rail Transit Line 24, requiring products to adapt to complex working conditions and highlighting the importance of 24V systems in public infrastructure.
Industrial automation: 24kV level intelligent circuit breakers launched by companies such as Schneider and Jinzhou Electric (note: some enterprise products are high-voltage models, but the technical concept can be extended to low-voltage scenarios), achieve remote monitoring and fault prediction through the Internet of Things and AI technology.
5、 Future trend: Multi core architecture and full scene integration
The concept of "multi-core era" proposed by CATL is not only reflected in the field of power batteries, but its dual core architecture design ideas also provide inspiration for circuit breaker technology - meeting customized needs through high/low voltage dual core collaboration and intelligent energy distribution. In addition, the introduction of cutting-edge technologies such as solid-state circuit breakers and GaN devices will further reduce size, improve efficiency, and promote the application of 24V systems in emerging scenarios such as ships and drones.