Description:

Module Description：
1, the module adopts genuine high-quality relays, normally open interface maximum load: AC 250V/10A, DC 30V/10A;.
2, Isolated by SMD optocoupler, strong driving ability, stable performance; trigger current 5mA;
3, the module operating voltage 5V, 9, 12V, 24V can be selected;
4, each way of the module can be set through the jumper high level or low level trigger;
5, fault-tolerant design, even if the control line is broken, the relay will not act;     
6, power indicator (green), 4-channel relay status indicator (red)
7, interface design humanization, all interfaces can be directly connected through the terminal leads, very convenient
8, module size: 73mm * 50mm * 18.5mm (L * W * H)
9, with four fixed bolt holes, hole 3.1mm, spacing 67mm * 44.5mm

Module interface：
1, DC +: connected to the positive pole of the power supply (voltage according to the requirements of the relay, there are 5V, 9V, 12V and 24V options)
2,DC-: connect to the negative pole of the power supply
3,IN1-IN4：According to the setting of each way, can be high or low level control the corresponding relay suction.
Relay outputs: 12-wire interface, all interfaces can be directly connected to the line out, convenient for users to use
1,NO1--NO4：Normally-open relay interface, the relay is suspended before it is activated, and is shorted to COM after it is activated.
2,COM1---COM4 Relay Common Interface
3,NC1--NC4：Normally closed relay interface, shorted to COM before the relay is engaged, shorted to COM after the relay is engaged.

High and low level trigger selection terminal:

1.S1-S4 in order for the relay 1-way - 4-way high and low level trigger selection.

2. When com is shorted to low, the corresponding relay is triggered at low level, and when com is shorted to high, it is triggered at high level.

Package Inckuded:

According to your choice