The eternal contact of this module is initiated by the 0V low level or the power negative trigger mode, which can not be connected with the voltage trigger signal higher than 5V.

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Need 2 12V high level trigger self lock relay module can open the following link to buy

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Product use:
Press the trigger button, corresponding relay lock, press, relay disconnect can also be eternal trigger switch, and use the low level trigger.

Product features:
1 double plate design PCB;
2 the stable and reliable chip control, stable and reliable performance, strong anti-interference, not false triggering, performance is far superior to CD4013;
3 with high power zener voltage to provide adequate and stable, and radiating holes are sufficient to ensure that the product is stable and reliable, long time working;
4 with anti power reverse protection diode, short time reverse power supply without any damage to the product;
5 the use of genuine Songle relay to control the load on the 250V, 10A (AC) and 30V 10A (DC) can withstand the load;
6 has two touch switch as product testing, stability testing products directly;
7 trigger can also be eternal trigger switch, the product is equipped with a wiring seat and lead, more convenient to use;
8 trigger can also be used to trigger other sensor modules, as long as it is a low level trigger are effective, the function has more etensions;

Relay output contact of double wire, can withstand high current safety
Electrical parameters:
Supply voltage: 12V (DC) supply current: more than 200mA
Load: 10A 250V (AC) or 10A 30V (DC)
Life: 1 million times
The use of the product:
1 power supply to meet the use range, DC 12V;
2 power line graph according to requirements, can not be reversed, although the protection circuit, but not for a long time to reverse;
3 using the regulator slightly fever is a normal phenomenon, long time relay has normal heating phenomenon, is a normal phenomenon;
4 load power relay load to leave some margin should avoid high power (about 2000W) and long time working environment, will have a certain impact on the life of the product.
Made clear the list:
21
Connection method of relay control 220V alternating current:

Relay output terminal Pinout:

This method is equivalent to the relay control circuit

The relay module control DC wiring:

Matching bo, need to open the links below to buy

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Need to contact the hair line of friends, please click the link below to buy:

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