Overcurrent-Undervoltage relay?

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Overcurrent and undervoltage are distinct conditions that require separate detection methods. A sensing circuit can monitor voltage levels and trigger alarms or relays when undervoltage occurs, while another circuit does the same for overcurrent situations. Microprocessor-based relays are available that can combine multiple protection functions, including both overcurrent and undervoltage detection, into a single unit. For lower current ratings, using a Motor Protection Circuit Breaker (MPCB) is recommended for motor protection. Understanding these distinctions and available solutions is crucial for effective circuit protection.
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Is there such a relay that can act as overcurrent as well as undervoltage? I might have mistaken it for something else so I just want to make sure. Thanks in advance.
 
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What is the maximum current rating...?

Try MPCB for lower current ratings to protect motors.
 
Overcurrent and undervoltage are two separate condititions.

For example: A sensing circuit is used to detect voltage. When the voltage decreases below a set point an alarm or signal is generated. This signal may activate a relay to control something else.

Same for overcurrent: A circuit detects the current. When the current exceeds some set point, an alarm or signal is generated. This signal may activate a relay to control something else.
 
kuraido said:
Is there such a relay that can act as overcurrent as well as undervoltage? I might have mistaken it for something else so I just want to make sure. Thanks in advance.
There are companies that provide microprocessor based "relays" which preforms a large number of protection functions in one "relay" case. e.g.

"www.ceerelays.co.uk/brochures/CEE%20PRAG.pdf"
 
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