20pcs JK03 220V AC Time Delay Relay Control Module with Trigger Delay 5min Adjustable NE555 10A

Features Function After connecting to 220V the output is off When triggered it outputs 220V After the arrival time the output is turned off Direct 220V output The external power cord load and button work Easy to use High quality original Songle relay for switching currents up to 10A It is equipped with normally open and normally closed points and can be connected as required Delay adjustment time length potentiometer is continuously adjustable The main control adopts NE555 monostable circuit with accurate delay Control part of the power supply adopts RC step down the capacitor adopts X2 capacitor conforming to safety regulations step down resistor 3W high power resistor filter capacitor up to 470uF ensuring stable and reliable power supply FR 4 glass fiber board is adopted which is suitable for the mains demand and is not easy to produce leakage electric arc Can adapt to various environments and temperatures in electrical appliances Board size 7x4cm with 4 mounting holes Package Included 20 x JK03 220V AC Time Delay Relay Control Module with Trigger