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

Features 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 Module Power Supply Voltage: 220V AC (range 100V-250V wide voltage) Module Power Consumption: 0.8W (0 power consumption in standby mode) Load Capacity: 10A Output Form: Active output Action Life: >100,000 times (full load), no-load >10 million times Size (mm): Approx. 68 x 36 x 22mm / 2.7 x 1.4 x 0.9in Screw Hole: Center Distance: Approx. 63 x 31mm / 2.5 x 1.2in Hole Diameter: Approx. 3.2mm / 0.1in Terminal: 1. Connect live wire to L and neutral wire to N 2. The switch is connected to L, L2 3. The load is connected to the FAN end, N Time Range Setting: S2 is used to set the time value S2 is not welded up and down, which means 0-30 adjustable S2 is welded up and down, which means 0-300 adjustable S1 is used to set the unit S1 is not welded up and down, the unit is: second S1 is welded up and down, the unit is: minute S1 S2 Scope Accuracy Disconnect Disconnect 0-30s 0.1s Disconnect Connection 0-300s 0.5s Connection Disconnect 0-30 minutes 2.0s Connection Connection 0-300 minutes 20s The potentiometer has 10 divisions and the time is equally divided. Typical Application: 1. Delayed turn off of exhaust fan 2. Delayed shutdown of the cooling fan of the heating system 3. Delayed turn-off of stair lights 4. Other industrial control places Package List 1 x Relay Module