Key Features and Benefits of the FN5-12 High Voltage Load Break Switch\n\n\n\n

The FN5-12 load break switch offers several key features that make it a valuable component in electrical networks:\n\n\n\n

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• Reliable Load Breaking: Capable of safely interrupting rated load currents, ensuring operational safety and efficiency.\n\n\n\n
• Compact Design: Its design allows for installation in various switchgear configurations.\n\n\n\n
• Robust Construction: Built to withstand the demands of high-voltage environments, ensuring a long service life.\n\n\n\n
• Integration with Fuses: Can be used in conjunction with fuses for enhanced protection against short-circuit faults (FN5-12D model includes short-circuit making current capacity).\n\n\n\n\n

  FN5-12 High Voltage Load Break Switch Technical Specifications\n\n\n\n

  The following table details the key technical parameters of the FN5-12 High Voltage Load Break Switch:\n\n\n\n

  Name	Unit	Value
  Rated voltage	kV	12
  Maximum working voltage	kV	12
  Rated frequency	Hz	50
  Rated current	A	400 \/ 630
  Rated short time withstand current (thermal stability current)	kA\/S	12.5\/4 \/ 20\/2
  Rated peak withstand current (dynamic stability current)	kA	31.5 \/ 50
  Rated closed loop breaking current	A	400 \/ 630
  Rated power loading breaking current	A	400 \/ 630
  5% rated power loading breaking current	A	20 \/ 31.5
  Rated cable charging breaking current	A	10
  Rated no load transformer breaking current		Equivalent to 1250kVA transformer no-load current
  Rated short circuit closing current	kA	31.5 \/ 50
  Load current breaking times	Load\/times	100%\/20, 30%\/75, 60%\/35, 5%\/80
  1min power frequency withstand voltage (RMS), phase-to-phase \/ isolating fracture	kV	42 \/ 48
  Power frequency withstand voltage between isolating fractures	kV	53
  Lightning impulse withstand voltage to ground (peak), phase-to-phase \/ isolating fracture	kV	75 \/ 85
  Opening\/closing operating torque	Nm(N)	90(80) \/ 100(200)
  Note: FN5-12D grounded part of the load switch with short-circuit making current capacity.		\n\n\n\n Fuse Technical Parameters for FN5-12\n\n\n\n The FN5-12high voltage load break Switch is often used in conjunction with fuses to provide overcurrent and short-circuit protection. The following table outlines the technical parameters for compatible fuses:\n\n\n\n Model Rated Voltage KV Fuse Rated Current A Rated Breaking Current KA Rated Current of Fuse-Element A RN3 12 50 12.5 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 RN3 12 75 12.5 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 RN3 12 100 12.5 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 RN3 12 200 12.5 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 SDL*J 12 40 50 6.3, 10, 16, 20, 25, 31.5, 40 SFL*J 12 100 50 50, 63, 71, 80, 100 SKL*J 12 126 125 –\n\n\n\n Applications of the FN5-12 High Voltage Load Break Switch\n\n\n\n The FN5-12 High Voltage Load Break Switch is suitable for a variety of applications in medium-voltage power systems, including:\n\n\n\n \n Distribution substations\n\n\n\n Ring main units (RMUs)\n\n\n\n Industrial and commercial power distribution\n\n\n\n Protection of transformers and cables\n\n\n\n Switching of load circuits\n\n\n\n\n The FN5-12 High Voltage Load Break Switch is a reliable and essential component for controlling and protecting medium-voltage electrical circuits. Its robust design and clear technical specifications make it a suitable choice for various applications within power distribution networks. When used in conjunction with appropriate fuses, it provides a comprehensive solution for circuit protection.\n","protected":false},"excerpt":{"rendered":" The FN5-12 High Voltage Load Break Switch is a robust and reliable switching device designed for medium-voltage power distribution systems. This load break switch is engineered to safely make and break load currents under normal operating conditions, providing essential control and protection for various electrical applications. This article provides a detailed overview of the FN5-12, […]\n","protected":false},"author":1,"featured_media":1039,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[29],"tags":[],"class_list":["post-1038","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-load-break-switch"],"acf":[],"yoast_head":"\n