A relay is a device that can open or close a circuit by using an electric current to control a magnetic coil. A relay can be used to switch on or off devices that require high voltage or current, such as lamps, motors, solenoids, etc., using a low voltage or current signal, such as from a microcontroller, sensor, or switch. This product is a module that has two 5V relays that can handle up to 250VAC or 30VDC and 10A of current. It has three pins for each relay input: VCC, GND, and IN. The IN pin can be connected to a high or low level signal to trigger the relay. The module also has a jumper that can be used to set the trigger mode: high level (H) or low level (L). The module has an LED indicator that lights up when the relay is activated. The module also has a diode that protects the circuit from reverse voltage spikes when the relay switches off. The module has three terminals for each relay output: NO (normally open), COM (common), and NC (normally closed). The NO and COM terminals are connected when the relay is activated, and disconnected when the relay is deactivated. The NC and COM terminals are connected when the relay is deactivated, and disconnected when the relay is activated. The output terminals can be used to connect the device that needs to be switched on or off.
Features:
- Easy to use: The module can be powered by 5V directly from a microcontroller or power supply. It has screw terminals for easy connection of the output device.
- Flexible trigger mode: The module can be triggered by either high or low level signals, depending on the jumper setting. It can work with different types of input sources, such as digital pins, analog pins, sensors, switches, etc.
- Reliable performance: The module uses high quality relays that can switch high voltage or current devices safely and reliably. It also has an LED indicator that shows the relay status.
- Protection diode: The module has a diode that prevents reverse voltage spikes from damaging the circuit when the relay switches off.
Specifications:
- Supply voltage: 5V
- Trigger voltage: High level: 3.3V ~ 5V; Low level: 0V ~ 1V
- Trigger current: 5mA
- Relay voltage: 250VAC or 30VDC
- Relay current: 10A
- Relay type: SPDT (single pole double throw)
- Relay life: More than 100,000 times
- Module size: 50mm x 40mm x 18mm
JUTHOURTECH