Overcurrent-Undervoltage relay?

[kuraido]

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.

 

[lif3_h4ck3r]

What is the maximum current rating...?

Try MPCB for lower current ratings to protect motors.

 

[Bobbywhy]

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.

 

[dlgoff]

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"