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The ETB-172 is a trainer kit designed to demonstrate the working principle of under-voltage detection and monitoring using comparator circuits. This model simulates real-world scenarios where voltage drops below a preset threshold and triggers a control response—commonly applied in power protection, automation, and industrial safety systems. Equipped with a constant regulated (C.R.) power supply, this educational kit allows users to set reference voltage levels and observe output behavior when the monitored voltage falls below the defined limit. It provides a hands-on platform to study comparator operations, reference setting, hysteresis, and fault indication. Key Features:
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