Electric motor 0,75 kW, 905 rpm, 400 V, 1AL-90S-6

Electric motor 1AL-90S-6 for technologies with smooth 6-pole operation

Electric motor 1AL-90S-6 from VYBO Electric is designed for operations where the drive should not run aggressively, but steadily, regularly, and with good control over movement. The power of 0.75 kW and rated speed of 905 rpm at a frequency of 50 Hz create an operating profile suitable for equipment in which calmer running and even power transmission are important. This solution naturally finds use in fans, air handling units, circulation pumps, conveyor belts, smaller mixers, packaging machines, filtration units, dosing mechanisms, sorting equipment, drying modules, and also in technologies for air or liquid treatment. In these applications, it is often crucial that the motor maintains a stable pace and works well with the the machine’s mechanical system.

Power and speed with practical significance

With the six-pole design, what matters most is how the motor behaves in a longer working cycle. The rated 905 rpm helps to maintain smooth operation when conveying material, during ventilation, while mixing, and when driving auxiliary technological units. The power of 0.75 kW is suitable where equipment needs a reliable drive without unnecessarily aggressive dynamics. The motor is designed for a parabolic or linear load curve, so it fits well into assemblies with even resistance as well as into systems where the mechanical load changes according to the operating point. The rotor inertia of 0.0029 kg·m² supports a sensible response during start-up and when control changes. In practice, this means the drive does not behave sluggishly and the system can respond predictably.

Start-up, power supply and control options

The model operates with a rated voltage of 230/400 V in △/Y connection. The rated current is 3.79 A at 230 V and 2.18 A at 400 V, which makes it easier to design the power supply, protection, and selection of suitable components in the control panel. During start-up, it offers a starting torque ratio of 2.1. This helps in equipment that must overcome initial resistance without uncertain take-off. The breakdown torque ratio of 2.0 contributes to stability during load fluctuations while running. The starting current ratio of 5.3 is important when technically designing the entire power branch, especially if the motor is started more often or is part of a compact line.

The electric motor is suitable for direct DOL starting, frequency-inverter control, and operation with a soft starter. This means it can be used in simple fixed drives as well as in technologies where a gentler start-up or speed adaptation to the process is desirable. In conveyors, this helps with smoother material start-up. In air handling, the option of regulation is useful. In dosing and mixing, controlled behaviour of the entire unit is often an advantage.

Protection and operational durability

The IP55 protection rating is important for a normal industrial environment where dust, fine dirt, or operational moisture are present. IC411 cooling supports a stable thermal regime during regular loading. Insulation class F and temperature rise B create a suitable reserve for long-term operation in everyday use. The motor is designed for an ambient temperature up to +65 °C and an altitude of up to 1000 m, so it is well suited to standard industrial halls as well as warmer industrial areas. The service factor 1.0 and duty types S1, S2, S3 and S4-S9 allow deployment in continuous operation as well as in intermittent cycles, depending on how the specific equipment works.

The noise level of 57 dB(A) and a vibration velocity of 2.8 mm/s with a vibration class A support a refined mechanical operation. This is useful where the motor is part of equipment with more precise mounting, where more sensitive mechanics follows the drive, or where emphasis is placed on calmer operating behaviour.

Mechanical design and installation certainty

The shaft height of 90 mm gives this model a good foundation for versatile use in industrial machines and equipment. On both the DE and NDE sides, 6205-2Z bearings are used, which support stable rotor mounting under regular load. The lithium-based grease no. 2 is suitable for normal operating conditions. Balancing with a half key makes it easier to connect correctly with a pulley, coupling, or other transmission element. The design includes 2-M25X1.5 cable glands, which helps with a clean and reliable power connection. Rotation is possible in both directions, so the motor is also suitable for designs where the final arrangement is decided only during installation or commissioning.

The 1AL OPTIMAL series from VYBO Electric is built as a professional platform of low-voltage electric motors in an aluminium frame for wide industrial use. The emphasis is on quick commissioning, a very good price to quality ratio, and proven quality in everyday practice.

A drive that fits well into regular operation

Electric motor 1AL-90S-6 combines 0.75 kW power, smooth 6-pole speed, IP55 protection, and flexibility in control. It is suitable for technologies that require stable running, reliable start-up, and a dependable mechanical design without unnecessary complications during installation and wiring. In industrial applications, it is a motor that brings a calm operating character and good readiness for everyday deployment.