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More interesting: https://t.me/ekf_channel Link to the diagram: https://disk.yandex.ru/d/PqlPt1j_kmwVIw What is the advantage of the EKF three-position switch? What types of such equipment are in our assortment? How to use backup power supply circuits using a three-position switch with manual input of backup power? Valery Zizganov told about everything in detail and even assembled a single-phase shield and demonstrated the circuit in operation. 00:00 - Intro 00:33 - What is the EKF Proxima three-position switch and its characteristics. 01:09 - Operating positions of the TPS-63 three-position switch 01:22 - Design features of the EKF three-position switch 02:05 - Budget power supply circuit using a three-position switch and assembling the shield.