Three-phase electric motor: 1AL-71M1-2, 0,37 kW
| Basic technical data | |
| Motor type | 1AL-71M1-2 |
| Rated power (kW) | 0,37 |
| Frame size (mm) | 71 |
| Number of poles | 2 |
| Rated speed (rpm) | 2755 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 230/400 |
| Connection | △/Y |
| Rated current 230 V (A) | 1,67 |
| Rated current 400 V (A) | 0,96 |
| Efficiency at 100% load (%) | 69 |
| Power factor at 100% load | 0,81 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 2,2 |
| Breakdown torque ratio (BDT/RLT) | 2,3 |
| Locked-rotor current ratio (LRA/RLA) | 6,1 |
| Rotor moment of inertia (kg·m²) | 0,00075 |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | B3, B5, B14, B14B, B34, B35 |
| Duty type | S1 (S2, S3, S4 – S9 optional) |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD, soft starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Cable glands | 2-M20X1.5 |
| Operating conditions | |
| Ambient temperature range | +65°C |
| Maximum installation altitude | up to 1000m |
| Packaging and dimensions | |
| Packaging dimensions (mm) | 260*170*215 |
| Package weight (kg) | 6 |
| Bearings and lubrication | |
| DE/NDE bearings | 6202-2Z/6202-2Z |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
Electric motor 1AL-71M1-2 0.37 kW for equipment where smooth running and operational reliability are important
For smaller and medium-light industrial drives, it is crucial that the motor is not only compact, but also able to work steadily throughout the entire duty cycle. Electric motor 1AL-71M1-2 from VYBO Electric is prepared exactly for this type of application. It is a three-phase asynchronous electric motor with an output of 0.37 kW, a 2-pole design and a rated speed of 2755 rpm at a frequency of 50 Hz. The rated voltage of 230/400 V and the Delta/Star connection make it easy to integrate into standard three-phase systems in an industrial environment.
The 71 frame size gives this model a practical basis for technologies where regular operation, reliable starting and good durability in everyday use are expected. The output level of 0.37 kW is especially interesting where the drive already performs a more important working task, but a space-saving solution is still required. In equipment that operates in serial processes, auxiliary production operations, or technologies with repeated starting, this motor offers a very good balance between size, operational reliability and practical usability.
A good choice where starting and steady operation alternate
The 1AL-71M1-2 model operates with a power factor of 0.81 and an efficiency of 69%. The rated current is 1.67 A at 230 V and 0.96 A at 400 V, giving designers and service technicians an accurate basis for correct electrical sizing. In practice, however, in this power class the key factors are often the starting characteristics and the response to load changes. A starting torque ratio of 2.2, a breakdown torque ratio of 2.3 and a starting current ratio of 6.1 show that the motor is ready to handle working starts confidently and without unnecessarily erratic behaviour.
This is especially important in equipment that does not run in just one constant mode. Feeders, conveyor branches, packaging modules, ventilation units or dosing mechanisms often operate in a rhythm where starting, steady running and load changes alternate regularly. It is precisely in such an environment that the difference becomes clear between a motor that merely runs and a motor that helps the technology work smoothly and reliably.
Operating modes close to real production
1AL-71M1-2 is suitable for operating modes S1, S2, S3 and S4-S9. This means it can be used in continuous operation as well as in technologies with intermittent or cyclic loading. The service factor of 1.0 corresponds to rated working conditions, and the parabolic or linear load characteristic expands the application possibilities in equipment with different resistance characteristics during the duty cycle.
From the perspective of everyday production, this is a practical advantage. In many operations, the motor does not just drive a simple uniform mechanism. It is often part of a process where dosing, feed, extraction, mixing or material transfer alternate at shorter intervals. The ability to rely on the motor even in such an operating rhythm is important for the smoothness of the entire technology.
Durability that has real significance in industry
The motor is supplied in an aluminium frame and operates with an IP55 protection rating. This means protection against dust and splashing water, which is extremely important in everyday operation in workshops, production halls and technical rooms. IC411 cooling supports a stable thermal regime during longer operation and helps maintain reliable running even under more demanding working conditions. The F insulation class and B temperature rise complete the overall picture of the motor as a solution ready for regular industrial use.
Smooth operation is supported by a vibration velocity of 2.8 mm/s in class A and a noise level of 64 dB(A). For equipment that is part of smaller production lines or located close to the operator, this is a practical figure. The motor can rotate in either direction, which expands application options in universal mechanisms or assemblies with reversing. Balancing is provided with a half key. On both the DE and NDE sides, 6202-2Z bearings are used, and lubrication is provided by No. 2 lithium-based grease.
Where this model operates naturally
The output of 0.37 kW and a speed of 2755 rpm make the motor ideal for technologies that require brisk mechanical performance and reliable daily operation. It is well suited to smaller conveyors, raw material feeders, packaging equipment, labelling modules, sorting units and dosing stations. It also has its place in fan assemblies, extraction systems, circulation pumps, lighter mixers, filling workstations, laboratory equipment, assembly lines, service modules and auxiliary gear units of production systems.
The main benefit is that this motor does not act in the machine as an excessively robust element, but as a precisely selected drive for tasks where reliable work, good integration and stable operation matter. In equipment with limited space, this is a significant operational advantage.
Advantages of the 1AL OPTIMAL platform without unnecessary complexity
The model belongs to the 1AL OPTIMAL range, which is known as a proven solution for standard and more demanding operations alike. The strengths of this platform are high compatibility, quick and easy commissioning, proven quality and very good value for money. For assembly and integration, it is also important that the series is available in IM B3, IM B35, IM B5, IM B14 and IM B34 versions. The motor is equipped with 2-M20X1.5 cable glands. The packaging dimensions of 260 × 170 × 215 mm, the packaging weight of 6 kg and the rotor inertia of 0.00075 kg·m² complete the technical picture of handling and mechanical behaviour.
The motor is suitable for starting by the DOL method and also for control by a frequency inverter or soft starter, if the specific technology requires it. 1AL-71M1-2 therefore represents a practical choice for industrial drives where compact size, stable operation and readiness for regular working use come together.





