4 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger

Module description:
1. The module uses genuine high-quality relays. The maximum load of the normally open interface: AC 250V / 10A DC 30V / 10A;
2. SMD optocoupler isolation strong driving ability and stable performance; trigger current 5mA;
3 the module working voltage is 5V 12V 24V to choose from;
4. Each channel of the module can be triggered by setting high or low level through jumpers;
5. fault-tolerant design even if the control line is broken the relay will not operate;
6. Power indicator (green) 4-way relay status indicator (red)
7. The interface design is user-friendly all interfaces can be directly led out through the terminal block which is very convenient
8. Module size: 73mm * 50mm * 18.5mm (length * width * height)
9. with 4 fixing bolt holes 3.1mm holes pitch 67mm * 44.5mm

Module interface:
1. DC +: Connect to the positive pole of the power supply (the voltage is according to the relay requirements there are 5V.12V and 24V options)
2. DC-: connect to the negative pole of the power supply
3. IN1-IN4: According to the setting of each channel the corresponding relay can be controlled to be activated at high or low level.

Relay output: 12-wire interface all interfaces can be directly connected and led out which is convenient for users
1. NO1--NO4: relay normally open interface the relay is suspended before the pull-in shorted to COM after the pull-in
2.COM1--COM4 relay common interface
3. NC1--NC4: relay normally closed interface the relay is short-circuited to COM before pull-in and left floating after pull-in

High and low level trigger selection terminal:
1. S1-S4 are the high and low level trigger selection of relays 1 to 4;
2. When com and low are shorted the corresponding relay is triggered at low level and when com and high are shorted it is triggered at high level.level.


Before purchase:
1. All the goods are in stock and we will dispatch immediately if we receive the order.
2.Please read the item description if you have any question do not hesitate to contact us.
3.Use the vouchers for more saving.

Shipment：
1.1-2 days to ship(except for the pro-order item)

After purchase:
1.If you are satisfied，please give us 5 stars praise.
2.Please contact us before you are going to give us bad review. We are helpful and will solve the problems.
if you receive a defect itemplease contact us at once with item picture or video


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