A latching relay is different to a normal relay - it only needs a low pulse to change between open and closed - you don't need a continuous current to keep it open.
The module's relay is single-pole, double throw and can handle 250VAC at 10A or 30VDC at 10A. A button is fitted to the module for easy switching access, or you can use the included cable, simply short the two wires to switch the relay - or use your own button circuitry that has a pull-up resistor. The module's control circuitry requires 12V DC.
Relay Module 1 Relay - 5V 30A
This is 1 channel Relay module, can able to control various appliances, and other equipment with a BIG current for 30A (250VAC/30VDC).It can be controlled directly by mi..
Relay Module 2 Relay - 5V 30A
This is 2 channels Relay module, which is able to control various appliances, and other equipment with a BIG current for 30A (250VAC/30VDC). It can be controlled directl..
Relay Module 30A, Trigger 5V
This Relay module adopts a genuine high quality 30A relay. By using a optocoupler isolation chip, the relay has a strong driving ability, stable performance and has a tri..