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5A 12V Overcurrent Protection AC Current Detection Sensor Module

390.00 + GST

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LC 5A 12V Overcurrent Protection AC Current Detection Sensor Module uses a current transformer to collect the AC signal to achieve the relay over-current signal output within 0-5A. Relay pull while over-current, relay released while not over-current. Users can use the relay COM; NC, NO three ports to control the external circuit on and off, in order to achieve over-current protection.


  1. Current detection resolution can change the parameter of resistance parameters
  2. Output over-current switching signal output
  3. The over-current signal setting critical point adjustable.

Using Instructions:-

By setting the potentiometer to set the overcurrent protection point, the clockwise adjustment reduces the detection current.
As bellows:-
  1. Measured the wire through the current transformer, connect VCC and GND to the DC12V power supply;
  2. Adjust the potentiometer, when you hear the sound of the relay pull (can be measured with a multimeter COM and NO whether was turned on; is connected to the relay means activated), then reduce or cut off the current flowing that through the tested wire; if the relay release at this time that over-current protection point has been identified (available to multimeter COM and NC measurement whether is connected; is connected to the relay means it release);
  3. When reduce or cut off the current flowing through the wire; the relay is not released, will still need to continue to adjust the potentiometer to find the over-current protection point.


Operating voltage                                                    DC12V
Operating current                                                   <20MA
Operating frequency range                                     20Hz ~ 400Hz
Output mode                                                           Switch signal output
Maximum detection wire diameter                          5.2mm
Mounting hole:                                                        hole diameter is 3mm, hole distance 52.5mm
Operating environment (C)                                      -40 ~ +85
The current detection range                                    AC0.3A-5A
Dimensions (LxWxH)mm                                         38 * 44 * 12

* product image for illustration purposes only. actual product may vary.


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