Electric motor 11 kW, 1460 rpm, 400 V, 1AL-160M-4

Electric motor 1AL-160M-4 for production units with long operating cycles and stable loads

In technologies where the drive operates throughout the entire shift and the smoothness of the process depends on its operation, every detail matters. Electric motor 1AL-160M-4 is prepared for operations in which material is moved without interruption, media is pumped in a stable mode and the working rhythm of the line must not break down at every start. This three-phase asynchronous electric motor from the 1AL OPTIMAL series operates with an output of 11 kW, rated voltage 400/690 V, Delta/Wye connection and at a frequency of 50 Hz reaches 1460 rpm. The four-pole design supports calm and balanced power transmission in equipment where a long working cycle is expected without unnecessary fluctuations.

The 1AL-160M-4 model is naturally used in conveyor lines, pumping stations, fan units, extraction systems, mixing assemblies, dosing technologies, sorting stations, handling modules, recycling lines as well as in machines where material is moved at a regular pace. In such applications, not only the output itself is important. It is also decisive whether the motor, after start-up, moves into a stable operating mode and maintains it without undesirable fluctuation even under longer load.

Integration into power supply and operation control

At the rated voltage of 400/690 V, the motor achieves a rated current of 21.2 A at 400 V and 12.29 A at 690 V. When designing the switchboard, protection and electrical connection, these are important data, because reliable integration of the drive into the entire technology depends on them. The motor is suitable for DOL starting and at the same time supports control via a frequency converter and a soft starter. This makes it possible to choose a simple direct start or a more sensitive run-up according to the nature of the equipment, from pumps and fans to conveyors and mixing units.

The motor can rotate in either direction, which expands its use in reversing mechanisms, bidirectional feeds and also in units where the direction of movement changes according to the process phase. In technologies with regular switching of the working direction, this is a practical feature that simplifies integration of the drive into the control system.

Behaviour during start-up and under load

In motors of this power level, it is highly important how they behave at the moment of start and during transition into the working load. The 1AL-160M-4 model has a starting torque ratio of 2.3, a breakdown torque ratio of 2.3 and a starting current ratio of 7. In operation, this helps maintain a predictable run-up in equipment that is started repeatedly, operates with regular load or must quickly pass into a stable operating mode after starting. In pumping technology, ventilation, conveyors and mixing processes alike, this is a parameter with a direct impact on the smooth running of the entire line.

The motor is intended for a load type with a parabolic or linear load characteristic. This means wide possibilities of use in technologies where resistance changes according to flow, pressure, mechanism movement or the nature of the processed material. Also important is the rotor moment of inertia 0.0747 kg·m², which supports reliable operation during longer engagements, at a regular working pace and in sequentially controlled processes.

Mechanical confidence in everyday use

This model belongs to the design with a shaft height of 160 mm, which corresponds to equipment where fixed mounting and regular power transmission into the technological unit are already expected. On both the DE and NDE sides, 6309-2ZC3 bearings are fitted, and lubrication is provided by No. 2 lithium-based grease in the relevant temperature class. Balancing with a half key supports smooth running when mounting pulleys, couplings and other power transmission elements, which is important for the stability of the mechanical connection during long-term operation.

Noise level 75 dB(A) and vibrations 2.8 mm/s in Class A support balanced mechanical performance. In assemblies in which several drives operate simultaneously, such smooth running matters not only for the motor itself, but also for the stability of the entire structure.

Prepared for industrial production conditions

IP55 protection helps protect the internal parts of the motor against dust and splashing water. In transport technologies, material handling, production halls and technical rooms alike, this is an important element of operational reliability. A stable thermal mode is supported by IC411 cooling. The motor uses insulation class F and temperature rise B, while it is intended for an ambient temperature up to +65 °C and an altitude up to 1000 m.

Service factor 1.0 and duties S1, S2, S3, S4-S9 allow use in continuous operation as well as in intermittent cycles. This is important in operations where one part of the line runs without stopping and another is engaged according to the production rhythm or batch. Also practical are the 2-M40X1.5 cable glands, which support a reliable electrical connection. Packaging weight 86 kg and packaging dimensions help when planning handling, transport and service replacement. Within the 1AL OPTIMAL series, it is also possible to work with mounting arrangements IM B3, IM B35, IM B5, IM B14, IM B34. Electric motor 1AL-160M-4 thus represents a professional drive for operations that require 11 kW output, firm operational reliability and stable running in a long-term operating mode.