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12V 30A 1-Channel Two-way Isolation Relay Module

6 orders

$6.84 $6.30

870 in stock

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Two-way isolation type 1 road power relay control module, can choose high level or low level signal trigger, and only 3 ma current drive for 30A relay and control ability, module adopts quality goods of high quality power relay, the industry’s top subminiature encapsulation light coupling, high power high pressure triode, red, blue light signal, military level double-sided PCB board, cloth plate considering comprehensive, stable performance and can be widely used in all kinds of power control class.

Module specification
1, the module used authentic quality relay, normally open interface maximum load: ac 250V / 30A, dc 30V / 30A;
2, using the industry’s top quality subminiature two-way isolation optical coupling, strong anti-interference ability, stable performance;Trigger current only 3 ma.
3, modules, working voltage is 5V, 12V and 24V are available;
4, the user can choose the relay control level, can be a high level off, also can be low level and off;Module contains a limited flow resistance, can directly use the power supply is negative control, you can also use the MCU I/O control;
5, fault-tolerant design, even if the control line is broken, relay will not move;
6, the power indicator light (red), 1 road relay status indicator light (blue)
7, human interface design, all interface can be directly by terminal connection leads, is very convenient
8, module size: 6.0 cm * 3.0 m * 2.5 cm (length * width * height)
9, is equipped with four fixed bolt hole, convenient installation

The second module interface
Interface module control side: there are 4 line, all interfaces are terminal blocks, easy connection
1, DC + : external DC power anode (5V, 12V and 24V module selection)
2, DC – : external negative DC power supply
3, VREF, photoelectric isolation reference ground control end,
If using high level control: this signal is connected in the user control panel power of the cathode
If the low level control: this signal is connected on the user control panel power supply of the anode
4, CH1: relay control interface,
If VREF to connect power negative: this port high level (relative to VREF) relay and accordingly
If VREF receive positive: this port low level (relative to VREF) relay and accordingly

Note: isolation or relay module is in order to adapt to the electromagnetic environment is poor, the signal occasions with higher requirements, if you want to achieve complete isolation effect, is the power of the user control panel (i.e. connect VERF reference power) and relay module power supply power supply (DC + / DC) should be separate, if the two power supply, total is short of complete isolation effect, the user can choose our cheaper standard relay module.

Relay output: there are 3 line interface, all interfaces are terminal blocks, easy connection
1 NO: relay normally open interface, relay and impending, before and after absorption and COM sub
2, COM: relay public interface
3, NC: relay normally closed interface, relay and off with COM nipple, before and after the impending

Supply Voltage




Brand Name


Dissipation Power


Model Number

12V 30A 1-Channel Relay Module

Operating Temperature





Two-way isolation relay module


12V 30A 1-Channel Relay Module

Shipping and delivery

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How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location*Estimated Shipping Time
United States10-30 Business days
Canada, Europe10-30 Business days
Australia, New Zealand10-30 Business days
Central & South America15-30 Business days
Asia10-20 Business days
Africa15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
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We do not issue the refund if:

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  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


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