5A overcurrent protection sensor module AC current detection sensor 12V relay Switch

• Features: 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
• Functions:
• -Current detection resolution can change the parameter of resistance parameters;
• -Output over-current switching signal output;
• -Over-current signal setting critical point adjustable,
• Specifications:
• 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 Board size: 38 * 44mm

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 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, 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);
• 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.