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A UVR relay is a protective device that monitors supply voltage and disconnects the load when voltage drops below a preset level. It prevents equipment damage caused by undervoltage conditions such as motor stalling, contactor chatter, and control circuit malfunction. Used in industrial, commercial, and utility applications.
A UVR relay is an electrical protection device that trips a circuit breaker or contactor when the supply voltage falls below a specified level. It is designed to protect motors, transformers, and sensitive electronic equipment from the adverse effects of undervoltage.
UVR relays are commonly used in motor control centers, distribution panels, and generator protection systems. They can be set to trip instantly or after a time delay, depending on the application requirements.
The relay continuously measures the supply voltage through its sensing circuit.
When voltage falls below the set threshold, the relay initiates its response.
Depending on the setting, the relay trips instantly or after a delay.
When voltage returns to normal, the relay resets automatically.
Prevents motor stalling and burnout caused by low voltage conditions.
Protects generators from low voltage damage and ensures stable operation.
Prevents contactor chatter and control circuit malfunction.
Protects feeders and branch circuits from undervoltage conditions.
Protects compressors and fan motors from voltage drop damage.
Ensures reliable operation of automated equipment and production lines.
Choosing the right UVR relay is essential for equipment protection.
Consider voltage range, threshold adjustability, and response time when selecting a relay for your application.
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