Electric motor 0,55 kW, 680 rpm, 400 V, 1AL-90L-8

8-pole electric motor for technologies with a regular working cycle

Electric motor 1AL-90L-8 with an output of 0.55 kW is intended for equipment in which the drive must operate continuously, smoothly and without unnecessarily abrupt response. At the rated speed of 680 rpm, it is an 8-pole version that naturally suits operations with a lower working speed and an emphasis on stable transmission of motion. This character is used in belt conveyors, dosing units, mixers with light to medium load, circulation pumps, ventilation units, extraction modules, sorting tables, rotary working tables, packaging equipment and also in smaller winding and unwinding mechanisms. In such applications, it is important that the material moves or is mixed regularly, that the drive does not create unnecessary shocks and that the technology can be maintained in a steady working rhythm throughout the whole shift.

This is exactly where the output of 0.55 kW makes good operational sense. The motor is not designed for high-speed operation, but for reliable performance of smaller and medium-demand drive tasks in an industrial environment. In packaging products, it can ensure smooth rotation and feed. In pumping or ventilation, it supports stable operation of the technology. In dosing loose or liquid substances, it helps maintain a regular process. In mixing lighter blends, in conveying packaging, in sorting bulk material or in handling products, what matters most is that the motor operates predictably and does not introduce unnecessary agitation into the mechanism.

Speed and starting in real operation

The rated speed of 680 rpm creates a working character suitable for technologies where smoother motion is required rather than high dynamic performance. This is also reflected in the starting behaviour. The starting torque ratio of 2.0 relative to rated torque gives the motor a good foundation for a reliable start. The breakdown torque ratio of 1.8 helps maintain operation during normal load changes, and the starting current ratio of 4.0 is important for the design of electrical protection and starting. In practice, this means that the motor can be incorporated into equipment where the cycle repeats regularly, where material starts moving without sudden impacts, or where motion is transmitted continuously over a longer working period.

The load type is designed for a parabolic or linear load characteristic, which makes this model a universal solution for a wide range of common industrial applications. It fits well into operations with fans and pumps, but equally into mechanical processes where smooth feed, finer rotary motion or regular mixing of the contents of a tank or hopper is required.

Resistance to the environment and thermal reliability

The motor is ready for everyday use in industrial conditions where dust, moisture and normal industrial contamination are expected. The IP55 degree of protection safeguards important parts of the drive during standard operation in production, in workshops and in technical rooms. IC411 cooling supports heat dissipation under continuous and intermittent load, and the F insulation class together with temperature rise B creates a suitable basis for long-term use without unnecessary thermal stress. Operating modes S1, S2, S3 and S4-S9 are available, so the motor can be used in continuous operation as well as in equipment with a repeated cycle. Use is intended for an ambient temperature of up to +65 °C and for an altitude of up to 1000 m.

The noise level of 56 dB(A) supports refined operation in technologies that work in a compact hall or closer to the operator. Within the 1AL OPTIMAL platform, this is a professional low-voltage VYBO Electric electric motor in an aluminium frame, designed for broad industrial use and quick integration into operation.

Supply, starting and integration into control

Electric motor 1AL-90L-8 is intended for supply of 230/400 V at 50 Hz with Delta/Y connection. The rated current is 3.58 A at 230 V and 2.06 A at 400 V, which helps with the design of protection, contactors and the overall electrical wiring. The motor is suitable for DOL, for control by a frequency inverter and for use with a soft starter. This allows either simple direct starting in basic applications or a gentler start where the mechanical system require a softer run-up. Such flexibility is useful, for example, with conveyors with a more sensitive transmission, dosing systems, rotary modules or equipment where the working pace needs to be adjusted according to the process.

Mechanical design and practical details

The shaft height of 90 mm represents a universal size for both more compact and medium-sized machine assemblies. Rotor stability is supported by 6205-2Z bearings on both the DE and NDE sides. Vibration of 2.8 mm/s in class A helps maintain balanced operation after connection to a pulley, coupling or other transmission element. The direction of rotation is possible both ways, and balancing with a half key supports correct installation into standard industrial mechanisms. The rotor inertia of 0.0065 kg·m² contributes to a natural response both at start-up and when the operating state changes. The design includes cable glands 2-M25X1.5. During storage and handling, the packaging dimensions 380 × 210 × 270 mm and packaging weight of 15 kg are helpful. The bearing arrangement uses No. 2 lithium-based grease.

Electric motor 1AL-90L-8 is a suitable choice wherever the technology requires lower speeds, a regular working cycle and an industrial design ready for everyday use. It combines a compact construction, stable starting, IP55 protection and practical electrical integration into a wide range of production and service equipment.