# How do I choose a motor MCB?

## How do I choose a motor MCB?

Type C MCB trips off when the flow of current is 5-10 times more than normal. Type D MCB has a high resistance as they can withstand up to 10-20 times the current rate. If you are looking for circuit breakers for devices with high starting current load like a motor, then type D is the ideal choice.

How many amps does a 1/2 hp motor draw at 120 volts?

HP 110-120 Volts
1/3 7.2 3.6
1/2 9.8 4.9
3/4 13.8 6.9
1 16 8

What size breaker do I need for a 1/2 HP well pump?

For a 1/2 HP submersible pump, a 15 amp 2 pole breaker would be normal. You can run 12 AWG, but unless the run is very long, 14 AWG is sufficient. Bigger wire would let you switch to a bigger pump later if you wanted.

### What type of MCB is used in motors?

For instance, for electric motors or low voltage lighting the use of a type B MCB may give unwanted tripping and the choice of a type C MCB will probably solve the problem.

Which MCB is used for 1hp motor?

MCB : 20 A. , Motor Start Capacitor: 120-150 MFD , Motor Run Capacitor: 50 MFD , 50Hz Wiring: 1.0 sq.mm to 2.5 sq….

Phase Single-phase
Power Rating 1 kW
Motor Power 1 hp

How much ampere in an MCB is best for a home?

The MCBs used in domestic installations are usually rated at 6000 amps or 6kA. SO the relationship between a typical domestic appliance rating and normal voltage (240v) allows that the over-current occurring as a result of short circuit should not exceed 6kA.

## How much power does a 2 hp motor use?

How Much Electricity Do You Need to Produce?
Survival Appliances Rated Watts Surge Watts
1 HP Motor 1000 2800
1-1/2 HP Motor 1700 4800
2 HP Motor 2000 5900

How do you calculate motor current from kW?

Single Phase AC – kW to amps For any single-phase AC circuit, Current, I = 1000 x kW / (Vac x P.F.) Therefore, amps can be calculated from AC – kW by dividing kW by the product of the RMS value of applied AC voltage and power factor and multiplying it by 1000.

How many watts does a 1 1 2 HP well pump use?

GeneratorJoe Generator Wattage Guide

Household & Office Running Wattage Starting Wattage
Pump, Well, 1 HP 2000 4000
Pump, Well, 1 – 1/2 HP 2500 5000
Pump, Well, 2 HP 3750 7500
Pump, Well, 3 HP 5000 10000

### How many amps does a 1 1 2 HP well pump draw?

5.0 Amps
When delivering 1/2hp to the pump, it draws 5.0 Amps. If that motor operates at its service factor of 0.8, it will draw 6.0 Amps. Most installations have motors near the maximum load.