Description
The Siemens 4NC5121-2FA21 is a premium Sentron series window current transformer designed for accurate and reliable current measurement in electrical power systems. Featuring a primary input rating of 150A and a precise 150:5 turns ratio, this transformer delivers a 5A secondary output current, which is ideal for interfacing with various monitoring, metering, and protection devices. Its window-type design facilitates easy installation around existing conductors without requiring the interruption of power flow, making it highly convenient.
This current transformer is engineered to meet stringent accuracy standards, ensuring that the secondary current accurately reflects the primary current, even under varying load conditions. The Siemens 4NC5121-2FA21 is built with high-quality materials to ensure durability and long-term performance in demanding industrial and commercial environments. Its robust construction guarantees consistent and dependable operation over its service life.
The Siemens 4NC5121-2FA21 is an essential component for applications such as energy monitoring, load profiling, and the operation of protective relays. By providing an accurate representation of current flow, it enables effective power management, fault detection, and system protection. Its versatility makes it a valuable tool for electrical engineers and system integrators.
Invest in the Siemens 4NC5121-2FA21 for precise and reliable current measurement solutions. Its advanced design, high accuracy, and ease of installation make it a superior choice for ensuring the efficient and safe operation of your electrical systems.









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