Electric motor 0,25 kW, 645 rpm, 400 V, 1AL-80M2-8

Compact drive for small machines with a regular duty cycle

In smaller production units, it is often crucial that the drive can be fitted easily, connected reliably, and keep a steady rhythm in operation without unnecessarily sharp response. Precisely for this type of application, the electric motor 1AL-80M2-8 with an output of 0.25 kW is intended. It is an 8-pole model with a rated speed of 645 rpm, so its character is not fast and aggressive, but calm and stable. In practice, it therefore works well in equipment where material is conveyed, dosed, mixed, or rotated in a regular rhythm. Typical examples can include smaller feeders, conveyor branches for piece goods, closing stations, labelling modules, turntables, circulation pumps, light mixing units, ventilation assemblies, sorting units, or simple packaging mechanisms. Everywhere there, it is important that the motor does not work nervously, but predictably.

Installation, space and mechanical integration

This model uses a frame size 80 mm, which is a favourable solution for compact machines and technology modules with limited installation space. The smaller dimensions simplify integration into equipment where every centimetre matters, for example in drive-equipped switchgear assemblies, side conveyors, dosing of bulk mixes, or auxiliary sections of packaging and filling lines. The motor can rotate in either direction, so the motor can be naturally adapted to various design solutions. The half-key balancing helps when connecting to a pulley or coupling and contributes to smoother operation of the entire assembly.

For mechanical stability, 6204-2Z bearings are used on both the DE and NDE sides. In operation, this means confidence during longer running periods as well as repeated duty cycles. A vibration velocity of 2.8 mm/s in class A support balanced running, which is especially important in technologies where movement is transferred to more sensitive mechanical parts. Such behaviour is welcome in sliding tables, small screw conveyors, sorting elements, or lighter winding mechanisms. The rotor inertia of 0.003 kg·m² corresponds to the fact that the motor responds briskly, but not with a harsh start. That is also why it feels very well balanced in practice.

Electrical connection without unnecessary complication

The electric motor 1AL-80M2-8 is designed for a supply of 230/400 V at 50 Hz with Delta/Y connection. The rated current is 1.83 A at 230 V and 1.05 A at 400 V, which simplifies power supply design and the selection of suitable switching and protection components. In smaller industrial units, this simple and clear electrical arrangement is a major advantage. The motor can be started DOL, is suitable for control by a frequency inverter, and equally for a soft starter. This makes it possible to use it in a simple standalone machine as well as in equipment where a gentler start or adjustment of the operating pace is required. In practice, this is useful, for example, for more precise dosing, stabilised packaging feed, smooth rotation of a product, or circulation of a medium in a smaller system.

Starting and behaviour under load

The motor is designed for a parabolic or linear load curve, so it is naturally suited to equipment where the load increases smoothly or remains in a regular range. The starting torque ratio of 1.9 and the breakdown torque ratio of 1.8 relative to rated torque give this model a good base for reliable starting and confidence under normal operating resistance. The starting current ratio of 3.3 helps with protection design and with estimating electrical behaviour during switch-on. In operation, this means that the motor is suitable where the aim is not high speed, but stable transmission of lower power without unnecessary shocks. The output of 0.25 kW therefore matches well with smaller processes in which the movement is repeated for many hours a day and must remain calm, accurate, and easy to control.

Durability in everyday use

Even a compact motor must cope with the usual industrial environment. This model has IP55 protection, so it is suitable for operations where dust, atmospheric humidity, and normal dirt are present. IC411 cooling ensures heat dissipation under standard load, and insulation class F together with a temperature rise B creates suitable conditions for reliable long-term operation. The service factor of 1.0 corresponds to standard industrial use, and the available modes S1, S2, S3 and S4-S9 extend the application from continuous operation to intermittent and cyclic running. The motor is prepared for an ambient temperature of up to +65 °C and an altitude of up to 1000 m. The noise level of 52 dB(A) is favourable for technologies that operate in a compact hall or closer to the operator.

The design includes cable glands 2-M20X1.5. For handling, the packaging dimensions of 320 × 220 × 260 mm and the packaged weight of 15 kg are helpful. Lubrication is provided by No. 2 lithium-based grease. The 1AL OPTIMAL series belongs among the proven low-voltage VYBO Electric electric motors in an aluminium frame for a wide range of industrial applications. The electric motor 1AL-80M2-8 is a suitable choice in this range for technologies that need a compact 8-pole drive with calm operation, simple integration, and a reliable mechanical foundation.