R-dual starter with MCB and contactor and over load relay selection.

 R-dual starter with MCB (Miniature Circuit Breaker) and contactor, ensure the MCB's rated current matches the motor's full load current. Select a contactor with a coil voltage compatible with your system and a current rating suitable for the motor. Overload relay selection depends on the motor's FLA; Choose one that offers protection without tripping during normal starting conditions. Coordination between MCB, contactor, and overload relay is crucial for a reliable and safe motor control setup.

Queries Solved:

1. Contactor Selection Guide.

2. How to select Contactor rating.

3. Starting current in country starter.

4. Contactor Selection for star delta starter.

5. Contactor Selection for country starter.

Hello friends in this video we discussed about Contactor Selection for dol starter and star delta starter in the simplest way possible.

In this video we explain how to select over load relay for 3 phase induction motor

Basically for selecting over load relay we first need to calculate full load current of motor than we can select relay

In this video we select over load relay for 5hp motor

Then select o/l relay

We also explain how to convert HP to amp

Kw to amp

So for converting HP to amp we just multiply 1.34 in motor flc

& for kw to amp we need to multiply 1.8 in kw ratting than we find flc

And for o/l relay selection we just take 20% less & 20% more of flc than select

We explain all concept very easily for more information learning about this topic just watch and learn

 R-dual starter with MCB (Miniature Circuit Breaker) and contactor, ensure the MCB's rated current matches the motor's full load current. Select a contactor with a coil voltage compatible with your system and a current rating suitable for the motor. Overload relay selection depends on the motor's FLA; Choose one that offers protection without tripping during normal starting conditions. Coordination between MCB, contactor, and overload relay is crucial for a reliable and safe motor control setup.

Queries Solved:

1. Contactor Selection Guide.

2. How to select Contactor rating.

3. Starting current in country starter.

4. Contactor Selection for star delta starter.

5. Contactor Selection for country starter.

Hello friends in this video we discussed about Contactor Selection for dol starter and star delta starter in the simplest way possible.

In this video we explain how to select over load relay for 3 phase induction motor

Basically for selecting over load relay we first need to calculate full load current of motor than we can select relay

In this video we select over load relay for 5hp motor

Then select o/l relay

We also explain how to convert HP to amp

Kw to amp

So for converting HP to amp we just multiply 1.34 in motor flc

& for kw to amp we need to multiply 1.8 in kw ratting than we find flc

And for o/l relay selection we just take 20% less & 20% more of flc than select

We explain all concept very easily for more information learning about this topic just watch and learn