## 38XX BRUSHLESS MOTOR SERIES:

- Outrunner construction
- 20,000 max rpm
- 22 poles / 24 slots
- 6mm shaft

## OPTIONS:

- Custom Kv configurations (RPMs per volt) are available.

## 38XX BRUSHLESS MOTOR POWER RANGES AND LENGTHS:

Neumotors 3800 series brushless motors are manufactured in a wide variety of lengths and winds to provide increasing power ratings at a number of voltages. Select the desired motor power and RPM range from the table below.

### 3810: 400-800 watt class BLDC motors

Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |

3810 | 1,355 | 0.020 | 2.1 | 7.062 | 1.000 | 14 | 60 |

### 3814: 500-1,000 watt class BLDC motors

Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |

3814 | 950 | 0.024 | 1.7 | 10.072 | 1.426 | 21 | 47 |

### 3819: 600/1,200 watt class BLDC motors

Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |

3819 | 705 | 0.029 | 1.4 | 13.572 | 1.922 | 28 | 42 |

### 3825: 700/1,400 watt class BLDC motors

Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |

3825 | 545 | 0.036 | 1.2 | 17.557 | 2.486 | 36 | 33 |

### 3834: 800/1,600 watt class BLDC motors

Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |

3834 | 395 | 0.046 | 1.1 | 24.224 | 3.430 | 50 | 32 |

### POWER RATINGS (Watts):

- Continuous rating is the power the motor can deliver while maintaining the external housing temperatures below 100C.
- MAX power rating is the power the motor can deliver beginning with motor at a temp of 20C until it reaches it's limit temperature of 100C.
- The ratings are therefore dependent on a number of variables including air flow, ambient air temperature, contact cooling etc.

### MTBF RATINGS:

When used within the constraints described above, BLDC motors' primary "wear" item(s) are the bearings supporting the shaft. Bearing life is inversely affected by speed, temperature, and radial and axial loads. While an MTBF figure can be generated, it would be rendered invalid by excursions beyond prescribed temperatures or load limits - such as prop strikes, or side loads. MTBF must be determined on a case by case basis, and even then, it would be subject to numerous exceptions.

### MAX VOLTAGE

Limited by kv (RPMs per volt) times the applied voltage. Max voltage must be kept below the voltage which will spin the motor over max rpm for the motor series.

### MAX AMPERAGE

See power ratings above.

### COMPONENT SPECIFICATIONS

- Winding temperature: -- 180C
- Magnet grade: - 180C UH grade
- Bearings: Japanese SPB bearings