Relay Module Delay Power Off Switch Control Board Electronic Component RD21F-C 220V

Feature:1. The main control chip adopts industrial-grade single-chip microcomputer, with accurate time and strong anti-interference.2. The power supply adopts RC buck, direct AC access, saves the buck circuit, and solves the problem of troublesome wiring.3. The relay has a large delay range, adjustable from 0.2 seconds to 5 hours.4. Small size, easy to carry and store, convenient to use and with good performance.5. Strict quality control and quality assurance, high safety factor, can be used with peace of mind.Specification:Item Type: Relay ModulePower Supply Voltage: 220V AC (range 100V-250V wide voltage)Module Power Consumption: 0.8W (0 power consumption in standby mode)Load Capacity: 10AOutput Form: Active outputAction Life: >100,000 times (full load), no-load >10 million timesSize (mm): Approx. 68 x 36 x 22mm / 2.7 x 1.4 x 0.9inScrew Hole: Center Distance: Approx. 63 x 31mm / 2.5 x 1.2inHole Diameter: Approx. 3.2mm / 0.1inTerminal: 1. Connect live wire to L and neutral wire to N2. The switch is connected to L, L23. The load is connected to the FAN end, NTime Range Setting: S2 is used to set the time valueS2 is not welded up and down, which means 0-30 adjustableS2 is welded up and down, which means 0-300 adjustableS1 is used to set the unitS1 is not welded up and down, the unit is: secondS1 is welded up and down, the unit is: minute S1S2 ScopeAccuracyDisconnectDisconnect0-30s0.1sDisconnectConnection0-300s 0.5sConnectionDisconnect0-30 minutes2.0s ConnectionConnection0-300 minutes 20sThe potentiometer has 10 divisions and the time is equally divided.Typical Application: 1. Delayed turn off of exhaust fan2. Delayed shutdown of the cooling fan of the heating system3. Delayed turn-off of stair lights4. Other industrial control places.Package List:1 x Relay Module