Module interface:
DC +: positive power supply (power supply voltage by relay)
DC -: negative
CH1: 1 relay module signal triggering end
CH2: 2 relay module signal triggering end
CH3: 3 relay module signal triggering end
CH4: 4 relay module signal triggering end
5V solid state relays 240V 2A, output with resistive fuse 240V 2A.
2.54cm pin and blue KF301 terminals to the control line is more convenient.
The input power supply: 5V DC (160MA)
The input control signal voltage: 0-2.5V low state relay OFF; 3.3-5V high state relay ON
Size: 57 x 55 x 20 mm(L x W x H)
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