DOL starter for single phase Motor

Title:- How to Provide overload protection to single phase motor using overload relay.
Why:- We have to provide over load protection to motor reason is that if our motor is over loaded it take more current than its rated capacity because of this winding start heating and may this burn the motor winding.
           if there is overload relay protection ( DOL starter) contactor un hold the supply and breack the circuit so motor will be safe ( different range of current setting available on relay as per motor capacity)

                                                                 Circuit Diagram..
Apparatus:
1)Three phase contactor
2) Thermal overload relay(As per motor capacity)
3) wire Sqmm as pwer

Procedure:
1) Firstly take 220V 50 Hz. supply and connect to point no 1 & 2,Phase & Neutral respectively as per shown in figer.
2) connect wire loop between point 3 & point A2.
3) Take wire from point 1 to any one of the terminal of START (means N/O terminal ) button.
4)then take wire from point A1 to point 95 as per fig. and also take wire from point 5 to middle terminal of overload relay as per fig.
5) Connect all three terminal of contactor to over load relay( means insert contactor terminals in realy ) as per fig.
6) take wire from point 96 and connect to remening terminal of of START button (means N/O ) as per fig.
7) finally take Phase and Neutral and connect to motor terminal.
8) after all connections as per fig. you're motor ready to run with overload protection .

Conclustion: using these you can easily provide overload protection to motor to avoid inrush of current.

Thanks
Kiran Patil