A relay is an electrically operated device. It has a control system and (also called input circuit or input contactor) and a controlled system (also called output circuit or output contactor). It is frequently used in an automatic control circuit. To put it simply, it is an automatic switch to controlling a high-current circuit with a low-current signal. The advantages of a relay lie in its lower inertia of moving, stability, long-term reliability and small volume. It is widely adopted in devices of power protection, automation technology, sport, remote control, reconnaissance, and communication, as well as in devices of electromechanics and power electronics. Generally speaking, a relay contains an induction part that can reflect input variables like current, voltage, power, resistance, frequency, temperature, pressure, speed and light etc. It also contains an actuator module (output) which can energize or de-energize the connection of the controlled circuit. There is an intermediary part between the input port and output port that is used to couple and isolate input current, as well as actuate the output. When the rated value of the input (voltage, current and temperature etc.) is above the critical value, the controlled output circuit of the relay will be energized or de-energized.
AC Control Voltage: 250V @10A
DC Control Voltage: 30V @10A
Relay Operating Voltage: 3.3~5V
One normally closed contact and one normally open contact
Triode drive, increasing relay coil
High impedance controller pin
Pull-down circuit for the avoidance of malfunction
Power supply indicator and Control indicator lamp
Power supply and relay instructions, lit, the disconnect is off
The input signal, signal, common Terminal and start conducting
Useful for appliance control
DC or AC signal, control, you can control the 220V AC load
There is a normally open and one normally closed contact
The module is compliant with international safety standards, control and load areas isolation trenches.