Power Supply Polarity Detection Ground Wire module can be used to check whether the wireline to ground zero of the socket has been connected，screening the hidden trouble in a security of household socket to ensure electrical safety.
The function and characteristics
● The onboard terminal 5.08 mm
● The onboard three LED status indicators
● Can be used to detect the rated current of 10A or 16A socket
Introduced the hardware and instructions
● The board size: 25 * 17 mm
● The board function description:
Modules on the terminal of L, N, E feet, respectively connect the socket of L (fire/phase line), N (zero line), E (ground), and then according to the L1, L2, L3 three lamp judging the state of the socket connection is correct (0: the lights went out,1: the light on).
L1 L2 L3 The test results
0 1 1 Correct wiring
0 1 0 Ground wire no wiring
0 0 1 Null line no wiring
1 1 0 Livewire and Null line connect opposite
1 0 1 Livewire and Ground wire connect opposite
1 1 1 Livewire and Ground wire connect opposite, Ground wire no wiring