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## How many amps does a 12 volt DC motor draw?

At this point it is drawing the maximum amount of current and applying maximum torque. A low voltage (e.g., 12 Volt or less) DC motor may draw from **100 mA to several amperes** at stall, depending on its design.

## How much current does a DC motor need?

Full load amps in 120 and 240 volts DC motors

Motor Rating (hp) | Current (amps) | |
---|---|---|

120 V | 240 V | |

1 |
9.5 |
4.7 |

1 1/2 |
13.2 | 6.6 |

2 | 17 | 8.5 |

## What is the power of a 12 volt DC motor?

12 Volt DC Geared Motor

Voltage | 12 V DC |
---|---|

Power Source | Electric |

Speed | 8600 RPM |

Torque | 0.41-0.60 mNm |

Efficiency | 55.0% |

## Will a 9V battery power a 12V motor?

The **9V batteries are weak** because the other half of the story is how much current they can supply. … It’s possible to run a 12V motor on 9V, but it will run slower and with less Torque.

## How do you calculate the power of a 12V DC motor?

If the DC motor is 12 v and has 3 amps, then is 36watts and a 12 volt battery on 75 amps/h will give you 12*75=**900watts**/36 = 25 hours.

## How do I know what AMP my motor is?

Given horsepower and volts, it is possible to calculate amps. The calculation of amps uses Ohm’s Law, which is **amps times volts equals watts**. Multiply the horsepower by 746 watts. For example, an engine at two horsepower with 230 volts would be calculated as two horsepower times 746 watts, which equals 1492.

## How many amps does my motor draw?

Calculate **the amps used by dividing the wattage by the voltage**. For example a 500-watt motor — running on 50 volts — will draw 10 amps. A motor with the same wattage — running on 20 volts — will use 25 amps. This is the theoretical number of amps used by the motor.

## What causes a motor to draw too many amps?

Electrical overload or over-current is caused by **an excessive current flow within the motor windings**, exceeding the design current which the motor is able to carry efficiently and safely. This can be caused by a low supply voltage, resulting in the motor drawing in more current in an attempt to maintain its torque.

## How do you measure current in a DC motor?

Calculate the field current for the motor using the formula **I = V/R where** I is the field current. As an example, assume V is 40 volts and R is 500 ohms: I = 40/500 = 0.08 amps.

## What is rating of DC motor?

Since the rating of a dc motor is determined by heating, the maximum permissible armature current is **approximately constant over the speed range**. This means that at rated current, output torque varies inversely with speed, and the motor has constant-horsepower capability over its speed range.

## What is the input of a DC motor?

The input of a brushless DC motor is **current/voltage** and its output is torque. Understanding the operation of the DC motor is very simple from a basic diagram is shown below. DC motor basically consists of two main parts. The rotating part is called the rotor and the stationary part is also called the stator.

## How much weight can a 12V DC motor lift?

Weight: **100 gm(Approx.)** RPM: 100 Operating Voltage: 12V DC Gearbox: Attached Plastic (spur)Gearbox Shaft diameter: 6mm Shaft Length: 21 mm Torque: 1.2 Kg-cm. No-load current = 60 mA(Max) Load current = 300 mA(Max).