5A 12V OVERCURRENT PROTECTION AC CURRENT DETECTION SENSOR MODULE

LC 5A Over-current protection Sensor module uses 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.

• • Current detection resolution can change the parameter of resistance parameters.
  • Output over-current switching signal output.
  • Over-current signal setting critical point adjustable.

Electrical Characteristics:

• • 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 is 52.5mm
  • Operating environment: -40 ℃ ~ +85 ℃
  • The current detection range :AC0.3A-5A

Connections:

• • VCC: Operating voltage positive;
  • GND :Operating voltage negative;
  • NO: Normally open, the relay pulls before the NO and COM disconnect, short-circuit after the suction;
  • COM: common, relay common interface;
  • NC: Normally closed, the relay before the NC and COM short-circuit, pull off after.

How to Operate:

By setting the potentiometer to set the overcurrent protection point, the clockwise adjustment reduces the detection current.
As bellows:

• • Measured the wire through the current transformer , connect VCC and GND to DC12V power supply;
  • 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, if 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, if connected to the relay means been released);
  • 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.

Package Includes:

• • 1 x DC 12V 5A Overcurrent Protection Sensor Module AC Current Detection Relay Module Switch Output