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Understanding FN21 and FZN21-12D Indoor High-Voltage Vacuum Load Switches
Infineon英飞凌现货 > 产品资料 > EZ-PD™ PMG1-S3 High-voltage MCU with USB-C & PD > Understanding FN21 and FZN21-12D Indoor High-Voltage Vacuum Load Switches

Understanding FN21 and FZN21-12D Indoor High-Voltage Vacuum Load Switches

FN21 and FZN21-12D are types of indoor high-voltage vacuum load switches. These devices play a crucial role in the control and protection of electrical systems, particularly in scenarios where high voltage is involved. The FN21 and FZN21-12D models are designed for indoor applications, ensuring reliable operation in various environments. They feature a vacuum interrupter, which facilitates the switching of electrical circuits under vacuum conditions. This technology significantly reduces the risk of arc formation during the opening and closing of the circuit, thereby enhancing safety and operational efficiency. These load switches are typically used in distribution networks to isolate sections of the system or to switch loads. They can also be integrated with other protective devices like fuses or circuit breakers to create comprehensive protection schemes. The FN21 and FZN21-12D models are rated for 12 kV systems, making them suitable for a wide range of industrial and commercial applications. Their compact design and robust construction contribute to their reliability and ease of installation. Additionally, these switches require minimal maintenance, further reducing operational costs over time.
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