5V relay module KY-019 | 5 Volt relay unit

Relay unit KY-019 is an electromechanical switch that allows a low voltage circuit (such as an Arduino circuit) to control another circuit with high voltage and current (such as household appliances operating at 220 volts). It is primarily used in home automation applications and industrial control. This unit operates at 5 volts to activate the relay coil, and it can withstand a current of up to 10 amperes and a voltage of up to 250 volts AC or 30 volts DC on the switching terminals. Technical details: Unit model: KY-019 Control voltage: 5 volts Rating: 10A 250VAC / 10A 30VDC Relay type: SPDT (Single Pole Double Throw)