As the manufacturing industry upgrades towards high-end and large-scale, problems such as excessive short-circuit current and difficulty in adapting protection parameters caused by high-power equipment clusters in factory workshops have become increasingly prominent. Recently, the YBRM5E-630 electronic molded case circuit breaker independently developed by Zhejiang Yingborui Electric Co., Ltd. has been successfully applied in batches in several heavy machinery and metallurgical processing factories in the Yangtze River Delta region, providing a reliable solution for electrical safety in high-load production scenarios, thanks to its ultra-high short-circuit breaking capacity of 150kA and flexible adjustable protection features.
I. จัดการกับจุดเจ็บปวดของโรงงานโดยตรง: ความสามารถในการทำลายสูงช่วยแก้ปัญหาการป้องกันไฟฟ้าลัดวงจร
In factory workshops, due to the dense distribution of high-power equipment such as motors and transformers, short-circuit currents often exceed 50kA. The insufficient breaking capacity of ordinary circuit breakers can easily lead to accidents such as switch burnout and over-level tripping. In response to this core pain point, YBRM5E-630 has established a three-level short-circuit breaking capacity system: at a voltage of 400V, the ultimate short-circuit breaking capacity of the S-type specification reaches 150kA, and that of the H-type reaches 100kA. Even in the face of the instantaneous current impact during the start-up of heavy equipment, it can quickly cut off the faulty circuit. Under the 690V high-voltage scenario, the S-type working short-circuit breaking capacity can still reach 65kA, far exceeding the average level of similar products in the industry.
ครั้งที่สอง การอัพเกรดการปรับฉาก: การออกแบบที่ยืดหยุ่นเพื่อตอบสนองความต้องการในการผลิตที่หลากหลาย
Due to the differences in equipment types and wiring methods, the factory power distribution system has varying requirements for the number of poles and wiring dimensions of circuit breakers. The YBRM5E-630 is available in 3P and 4P dual-pole configurations, suitable for different power distribution systems such as three-phase three-wire and three-phase four-wire. With a rated current of 630A, it can cover core circuits such as main power distribution in workshops and control of large motors. In terms of installation compatibility, the product is designed with two pole pitches of 45/52.5mm and 45/70mm, supporting cable connections with a large cross-sectional area of 4×240mm². Whether it is the integration of distribution cabinets in new factories or the equipment renovation in old workshops, seamless compatibility can be achieved.
What makes it more advantageous is its electronic tripping feature - protection parameters such as tripping current can be flexibly adjusted according to the load characteristics of the equipment. When a certain heavy machinery factory applied this circuit breaker to the stamping equipment circuit, it avoided false tripping during motor startup by extending the overload protection delay. In the circuit of precision detection instruments, the instantaneous protection response time is further shortened to achieve "precise protection without false operation". This flexibility enables it to break through the limitation of "fixed parameters" of traditional thermal-magnetic circuit breakers and adapt to the protection requirements of various types of equipment in factories.
III. การดำเนินงานที่เชื่อถือได้ในระยะยาว: ความทนทานระดับอุตสาหกรรมช่วยลดต้นทุนการดำเนินงานและการบำรุงรักษา
The harsh production environment in the factory imposes strict requirements on the mechanical strength and lifespan of circuit breakers. The YBRM5E-630 features a high-strength engineering plastic casing, offering excellent dust-proof and moisture-proof performance, and is suitable for high-temperature and dusty working conditions in workshops. Its mechanical life reaches 20,000 times and the electrical life is 10,000 times, far exceeding the industry average mechanical life standard of 15,000 times. Calculated based on the factory's daily operation frequency of three times, it can operate stably for more than 18 years.
The long service life of circuit breakers directly translates into a reduction in operation and maintenance costs. The marketing director of Zhejiang Yingborui Electric stated that this product has passed the 1000V rated insulation voltage test and can still maintain stable insulation performance in a 690V high-voltage scenario. Combined with a modular design, components can be quickly replaced in case of faults, reducing the equipment downtime for maintenance from 4 hours to 30 minutes. This feature of "high reliability and easy maintenance" has made it highly favored in the wave of "cost reduction and efficiency improvement" in the manufacturing industry.
ไฮไลท์มูลค่าทางอุตสาหกรรม: ความก้าวหน้าระดับสูงของเซอร์กิตเบรกเกอร์ภายในประเทศ
In the field of industrial circuit breakers, products with high breaking capacity have long been dominated by imported brands. The launch of YBRM5E-630 has broken this pattern - its core performance indicators are on par with international first-line brands, but its price is over 30% lower. It has successfully entered high-end manufacturing fields such as new energy equipment and heavy machinery. Data shows that since 2025, factory-end orders for this product have increased by 120% year-on-year, and the share of exports to emerging industrial markets such as Southeast Asia and the Middle East has reached 25%.
Industry experts point out that the practical application of YBRM5E-630 has confirmed the technological breakthroughs made by Chinese electrical enterprises in the three core dimensions of "breaking capacity, scene adaptation and durability". As the manufacturing industry continues to upgrade its requirements for electrical safety, this type of high-end circuit breaker, which focuses on the pain points of industrial scenarios, will become the "standard configuration" for the intelligent transformation of factories, promoting China's industrial power distribution protection system to move towards higher safety standards.
Zhejiang Yingborui Electric Co. , Ltd. ก่อตั้งขึ้นในปี 2548 เป็นซัพพลายเออร์ของเบรกเกอร์เชลล์อัจฉริยะโดยมุ่งเน้นไปที่การวิจัยและพัฒนาการผลิตการขายและการบริการของส่วนประกอบไฟฟ้าแรงดันต่ำ... 
