750V High Speed Fuse

Galaxy Fuse (Yinrong) is a leading manufacturer of the YRSA000-CU 750V High Speed Fuse in China, as well as a trusted supplier in the field of high-speed semiconductor fuse protection. The YRSA000-CU 750V series semiconductor protection fuses are specifically developed to meet the overcurrent protection requirements of power systems, energy storage systems, inverters, charging piles, and semiconductor components. With a rated voltage of AC/DC 750V (compliant with both IEC standards), the YRSA000-CU 750V series covers a wide current rating range from 80A to 400A, making them suitable for the majority of semiconductor devices and power electronic systems on the market. These aR-class fuses offer low I²t values and strong current-limiting capability, effectively reducing thermal stress on protected components while achieving a high breaking capacity of AC 80kA and DC 50kA (time constant ≤10ms). The product not only meets the Chinese national standard GB/T13539.4 but also complies with the international IEC standard IEC60269-4. Thanks to their compact body design, the YRSA000-CU 750V series fuses save valuable installation space without compromising performance. In addition, Galaxy Fuse (Yinrong) provides a variety of optional features tailored to customer-specific requirements, such as indicator configurations or special terminal adaptations. Every batch of the YRSA000-CU 750V series undergoes strict in-house quality control, including material analysis, full-process traceability, and factory aging tests — backed by our ISO 9001 certified facility and real-world field experience in rail transit and renewable energy projects. Choose the YRSA000-CU 750V series for proven expertise, authoritative certifications, and a reliable long-term partnership.

Parameters

Size(mm)

Approvals＆Standards

·GB/T13539.4

·IEC60269-4

Class of Operation

·gR

·aR

Features＆Benefits

·Compact size for space-saving installation

·Low I2tI2t value to reduce thermal stress

·Strong current-limiting capability for fast fault clearing

·High breaking capacity (AC 80kA / DC 50kA) for safety and reliability

·Wide rated current range (80A-400A) suitable for various loads

Applications

·Rail transit (traction power systems)

·Renewable energy power stations (energy storage systems, inverters)

·Communication equipment

·Metallurgy and electric power industries

·Overcurrent protection for charging piles and semiconductor components

Country of Origin

·Peoples’s Republic of China

Conventional Fusing and Non-Fusing