Product Description

I. Functions and features 1.Using of high-quality relay,Normally open relay contacts maximum load：AC *****0V/*0A, DC ****0V/*0A; 2.Using of high-withstand voltage transistor, strong driving ability, stable performance, trigger current of 5mA; 3.There have 5v, *2v, *4v three operating voltage modules to choose from; also have 1, 2, 4, 8 channel modules to choose from; 4.The relay using of Low-level voltage signals to trigger ,the module contain limited flow resistance, Low-level voltage signals can be DC power supply negative, also can be microcontroller I/O port set low; 5.Fault-tolerant design, if the control line is broken, the relay will not operate; 6.The power indicator (red LED), *-channel relay status indicator(blue LED); 7.The interface humanization design, all interfaces can be drawn through terminals connect directly, very convenient; 8.The module size: 9.0cm (L) * 7.9cm (W) * 2.0cm (H); 9.Which has four fixed bolt holes for easy installation. II. Relay Module Interface The module control terminal: **-wire interface, all interfaces have terminal blocks, very convenient. 1.VCC/DC+: the positive electrode of the DC power (there is 5V, *2V and *4V modules to choose from); 2.GND/DC-: the negative electrode of the DC power ; 3.CL*-CL8: relay control interface, low level corresponding relay pull. The relay module outputs: **-wire interface, all interfaces have terminal blocks, very convenient. 1.NO*-NO8: the relay normally open contacts; 2.COM*-COM8: the Relay common contact; 3.NC*-NC8: the relay normally closed contacts.