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Last Post 11/02/2011 11:27 AM by  Tony Hodges
Question on CR 5395 current relay
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Jeff McIntosh
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Posts:2


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11/02/2011 8:11 AM
    I am looking at this current relay in the DC version to be used in a circuit to sense the current going to a 1/8hp 90 VDC permenant magnet motor.
    The current will be 2 amps or less and need to energize a panel lamp when the motor is running along with a future interlock to shut the system doen on a motor interruption.
    Will the CR 5395 do this?
    Tony Hodges
    CRM Staff
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    11/02/2011 9:39 AM
    Dear Sir,

    Lowest range unit is 1 to 10 Amps. You can lower that range by wrapping multiple turns. The relay is available with the necessary logic and latching feature to implement any control scheme. The CR5395 should be a good choice.
    Jeff McIntosh
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    11/02/2011 10:00 AM
    Tony;
    So the current value can be lowered by wrapping the read motor lead thru the transducer an extra wrap or so?
    Tony Hodges
    CRM Staff
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    Posts:154


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    11/02/2011 11:27 AM
    Dear Sir,

    I look at it the opposite way. By wrapping the wire thru the CT you are increasing the current being sensed and scale accordingly. I have attached an application guide for your review. This shows how the process works.
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