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Self-ventilated motors, converter-fed operation, cast-iron series 1LA8

The motors are asynchronous squirrel-cage motors with compact dimensions in fin-cooled design. The motors are designed for converter-fed operation with the SINAMICS and SIMOVERT MASTERDRIVES drive system.

For further information and details, see the sections “Orientation” and "Technical data".

  • Converter-fed operation
  • Degree of protection: IP55
  • Cooling method: IC01, self-ventilated
  • Housing: Cast iron

The motors are available with standard insulation for voltages ?500 V or with special insulation for 690 V.

In the case of self-ventilated motors, such as series 1LA8, the thermally admissible load torques are reduced for continuous operation for speeds below the rated speed. This must be taken into account in those applications in particular that are not subjected to a load torque that is dependent on the square of the speed.

When motors are operated at speeds above their rated speed (operation in the field-weakening range), the maximum load torque is also reduced.

Guide values for the admissible load torques at various speeds can be obtained from the diagrams below.

Thermal limit torque characteristic 1LA8

Каталог оборудования

Приводная техника

Двигатели переменного тока

Низковольтные двигатели

Low-Voltage Motors - IEC Squirrel-Cage Motors

1LE1 motor generation

Standard motors up to frame size 315 L

Non-standard motors frame size 315 and above


Self-ventilated motors, mains-fed operation, cast-iron series 1LA8

Self-ventilated motors, converter-fed operation, cast-iron series 1LA8

Self-ventilated, converter-fed operation, cast-iron series 1LA8

Self-ventilated, converter-fed operation, cast-iron series 1LA8

Forced air-cooled, externally-mounted fan, cast-iron series 1PQ8

Self-ventilated, through ventilation for mains-fed operation, 1LL8

Self-ventilated, through ventilation for converter-fed operation, 1LL8

Special versions

Accessories and spare parts


Explosion-proof motors

Motors operating with frequency converters

Pump motors

Fan motors

Compressor motors

Smoke-extraction motors

Marine motors

Синхронные двигатели с возбуждением от постояннымх магнитов

Асинхронные серводвигатели/двигатели главного движения

Синхронные двигатели

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Мотор-шпиндель 2SP1 ECS

Линейные двигатели

Линейные двигатели 1FN

Шаговые двигатели 1FL3 SIMOSTEP

Системы измерения

Стояночный тормоз

Асинхронные двигатели - стандартная линия

Двигатели постоянного тока

Децентрализованная приводная техника


Преобразователи постоянного тока

Инструментальное программное обеспечение

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Техника автоматизации

Коммуникации и сети

Низковольтная коммутационная техника

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Специализированные сенсоры

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