Electric motor 4 kW, 2880 rpm, 400 V, 1AL-112M-2

Electric motor 1AL-112M-2 4 kW for machines where the drive must fit in quickly, precisely and without unnecessary compromises

When selecting an industrial drive, performance is often not the only deciding factor. It is also very important how quickly the motor is integrated into the equipment, whether it offers suitable mounting options, and how it behaves in everyday operation. Electric motor 1AL-112M-2 from VYBO Electric is prepared exactly for this type of requirement. It is a three-phase asynchronous electric motor with an output of 4 kW, 2-pole design and rated speed of 2880 rpm at a frequency of 50 Hz. The rated voltage of 400/690 V with Delta/Star connection makes it easier to integrate into industrial electrical systems where reliable and stable performance is expected from the drive.

The 112 frame size is a practical format for technologies that need brisk operation, solid operational reliability, while still keeping sensible installation dimensions. In practice, this is a model that fits well into production lines, ventilation assemblies, pumping systems, dosing workplaces, packaging technology and handling mechanisms where fast drive response and reliable everyday operation are required. In such equipment, it is important that the motor does not act as a complication during installation, but as a natural part of the functional whole.

Parameters that make correct drive design easier

Model 1AL-112M-2 operates with a power factor of 0.88 and an efficiency of 84.2 %. The rated current is 7.46 A at 400 V and 4.52 A at 690 V, which provides a solid basis for electrical sizing and for designing protection within the technology. For motors in this class, this is already a performance level where regular daily operation without fluctuations, good operational stability and the ability to work at a higher pace are expected. The rated speed of 2880 rpm also makes this model suitable for equipment where a brisk mechanical response and rapid transmission of motion are important.

Behaviour during starting also plays a significant role. A starting torque ratio of 2, breakdown torque ratio of 2.2 and starting current ratio of 7.5 create a good basis for equipment that is started regularly or operates under changing load. In operation, this helps especially where the motor drives conveyor branches, fan wheels, circulating systems, mixing elements or technological units that are expected to enter operating mode smoothly.

Design developed for real working conditions

The electric motor 1AL-112M-2 is made with an aluminium frame and operates with IP55 protection, which provides protection against dust and splashing water. In production halls, workshops, technical rooms or technological units, this is a very important feature. The IC411 cooling method supports a stable thermal regime under longer load and helps keep the motor in reliable operation even during an intensive working shift. Insulation class F and temperature rise B complete a technical base prepared for long-term industrial use.

From a mechanical point of view, it is also important that the motor operates with a vibration velocity of 2.8 mm/s in class A and a noise level of 77 dB(A). Balancing is provided with a half key and the motor can rotate in either direction, which gives greater freedom when designing the machine solution. On both the DE and NDE sides, 6306-2Z bearings are used. Lubrication is provided by No. 2 lithium-based grease, which supports reliable operation under regular working load.

Installation and integration into technology without unnecessary restrictions

A major advantage of this model is its good readiness for integration into various types of equipment. The motor is equipped with cable entries 2-M32X1.5, which corresponds to its power class and the practical requirements of industrial installation. Packaging dimensions of 420 × 245 × 310 mm and a packaging weight of 28 kg help with planning logistics, handling and service replacements. The rotor inertia of 0.0126 kg·m² adds an important picture of mechanical behaviour during starting and when changing operating state.

The motor is suitable for operating modes S1, S2, S3 and S4-S9, so it can be used in continuous processes as well as in cyclic technologies where work is regularly repeated. The service factor 1.0 corresponds to rated working conditions and the parabolic or linear load characteristic broadens the possibilities for use in various kinds of industrial equipment. The motor is suitable for starting by the DOL method and, depending on operating requirements, also for control by a frequency inverter or soft starter.

Room for flexibility and future equipment modifications

Model 1AL-112M-2 belongs to the 1AL OPTIMAL range, which is available in mounting versions IM B3, IM B35, IM B5, IM B14 and IM B34. This brings greater freedom when designing a new machine as well as when modernising existing technology. The 1AL OPTIMAL platform is known for high compatibility, quick commissioning and proven quality. In practice, the reinforced terminal box, the improved securing of the IP55 terminal box cover, the steel fan cover, compatible feet, the option to replace the front cover and the frame designed for efficient cooling are also appreciated.

1AL-112M-2 is therefore an excellent choice for operations looking for a high-speed electric motor with an output of 4 kW, reliable construction and good mounting flexibility. In machines where regular load, emphasis on stability and the need for trouble-free integration into the technology are combined, this model offers exactly what is expected from a professional industrial drive.