Three-phase electric motor: 3LC-315S-6, 75 kW
| Basic technical data | |
| Motor type | 3LC-315S-6 |
| Rated power (kW) | 75 |
| Frame size (mm) | 315 |
| Number of poles | 6 |
| Rated speed (rpm) | 990 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 136 |
| Rated current 690 V (A) | 78,84 |
| Efficiency at 100% load (%) | 94,6 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,84 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 2 |
| Breakdown torque ratio (BDT/RLT) | 2 |
| Locked-rotor current ratio (LRA/RLA) | 6,6 |
| Rotor moment of inertia (kg·m²) | 4,58265 |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3, B5, B35, V1 |
| 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-M63X1.5 |
| Operating conditions | |
| Ambient temperature range | -20 to +40°C (-30, +50, +60 optionally) |
| Maximum installation altitude | up to 1000m |
| Packaging and dimensions | |
| Packaging dimensions (mm) | 1302*727*1026 |
| Package weight (kg) | 763 |
| Bearings and lubrication | |
| DE/NDE bearings | 6319-C3/6319-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
In industrial lines, pumping stations and mixing units, reliable power transmission determines the stability of the entire production process. The 6-pole electric motor 3LC-315S-6 delivers efficiency and value appreciated by any operation monitoring energy consumption, continuity and drive-service readiness. In this class, it is particularly suitable wherever drive technology must provide high torque at lower speed without unnecessary downtime.
IE3 efficiency class supports lower consumption under normal load and helps keep operating costs under control. Super high efficiency is particularly evident during long production cycles, where differences in energy consumption are reflected in the overall drive balance.
6-pole electric motor for stable operation of production units
A rated speed of 990 rpm is suitable for technologies requiring smoother acceleration and balanced operation without excessive dynamic mechanical stress. Rated current of △ 400V 136 A and rated current of Y 690V 78.84 A give designers a solid basis for switchgear and protection design. From an integration perspective, a power factor of 0.84 is also important when designing the power system in environments with multiple large loads.
An electric motor sized this way is suitable for operations where process repeatability and resistance to long-term loading are important. The 3LC PRO model designation in this power class fits naturally into assemblies where compatibility with common industrial standards and a simpler service strategy are expected.
Robust cast-iron frame for harsh operating conditions
A robust cast-iron frame increases resistance to vibration, impact loads and long-term use in production halls. Reinforced cast-iron bearing shields and reinforced cast-iron feet help maintain mounting geometry even during demanding installation, which is particularly important for larger drives where installation accuracy directly affects the service life of mechanical components.
A noise level of 83 dB(A) is a value that must be considered when designing the workplace and enclosure in industrial environments. Rotor inertia of 4.583 kg/m² together with a starting torque ratio of 2 and starting current ratio of 6.6 provides predictable starting behaviour. DE bearing 6319-C3 and NDE bearing 6319-C3 support long-term mechanical stability with the correct lubrication and service regime.
Typical applications in production and process drives
The 3LC PRO model in this design is particularly suitable for the following specific applications:
- Main belt-conveyor drive in a sorting line with continuous material transport.
- Screw-conveyor drive for bulk raw materials in silo operations.
- Drive unit for a mixer in chemical and food processing.
- Recirculation-pump drive in a process-water plant.
- Main crusher drive in aggregate processing.
- Hot-air-unit fan drive in a drying line.
- Press unit in engineering and recycling operations.
- Rolling or winding-station drive in film and strip processing.
In these applications, it is important that a 400 V electric motor withstands long-term loading without unplanned downtime. Cable preparation through 2-M63X1.5 glands also helps when designing the assembly, simplifying connection in switchgear or cable routes with larger conductor cross-sections.
Dimensions, connection and service readiness for installation teams
A shaft height of 315 mm and package dimensions of 1302*727*1026 mm simplify planning for handling, storage and access to the installation area. A packaged weight of 763 kg requires suitable lifting equipment, so the motor is best suited to operations equipped for handling larger drives. From a service perspective, it is important that the technical solution is based on a long-established standard familiar to installation and maintenance teams.
The 3LC-315S-6 from the portfolio of proven manufacturer and distributor VYBO Electric fits environments where not only performance but also operational reliability and spare-part availability are monitored. Efficiency of 94.6% supports economical operation at stable working points and helps keep costs under control throughout the drive’s life cycle.
3LC PRO prepared for long cycles and rapid deployment
For production operations that need a reliable 6-pole electric motor in stable service, this design provides a practical solution focused on durability and energy discipline. If the drive needs to be deployed without a long wait, order the 3LC-315S-6 as soon as possible, because stock in this power class turns over quickly.
