I bought 4 nos FOTEK SSR-40 DA Relay.
I need to use this relay to start 4 number single phase exhaust fan, please refer below specification of exhaust fan.
Single Phase AC Induction Motor
230V 50Hz 1Ph AC
Input 90W Max Current 2A
Insulation Class E
Capacitor: 4MFD/440V AC PF-0.9
Please refer below basic schematics of connection
When SSD relay triggered from Arduino Microcontroller board the relay LED illuminates but FANs are not ON, they sounds and the fan blades rotates vary slow (approximate one rotation in 20-30 Seconds).
I don’t know why this is not switching correctly, while connecting without SSD directly all FAN working ok.
The current rating of relay is 40 A and all 4 FAN current rating is not more than 12 A.
Can anyone help me in diagnosing and identifying the problem here.