Three-phase electric motor: 3LC-315S-2, 110 kW
| Basic technical data | |
| Motor type | 3LC-315S-2 |
| Rated power (kW) | 110 |
| Frame size (mm) | 315 |
| Number of poles | 2 |
| Rated speed (rpm) | 2980 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 185 |
| Rated current 690 V (A) | 107,25 |
| Efficiency at 100% load (%) | 95,2 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 1,8 |
| Breakdown torque ratio (BDT/RLT) | 2,3 |
| Locked-rotor current ratio (LRA/RLA) | 7,1 |
| Rotor moment of inertia (kg·m²) | 1,495 |
| 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) | 843 |
| Bearings and lubrication | |
| DE/NDE bearings | 6317-C3/6317-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
A robust cast-iron frame helps reduce the risk of deformation under long-term load and gives the 3LC PRO 3LC-315S-2 two-pole electric motor the ability to deliver reliable savings even in continuous operation. With an output of 110 kW, a rated speed of 2980 rpm and a 400/690 V supply, this electric motor is suitable where drive stability, energy efficiency and real value over the entire service life of the equipment are important.
Two-pole electric motor for lines where stable pulling power matters
The 3LC PRO design is intended for operations working under high load that need predictable starting and repeated starts. Rated current of 185 A at △ 400V and 107.25 A at Y 690V gives designers the data required for correct sizing of protection and switchboards. A starting current ratio of 7.1 simplifies starting-system design in applications where network current loading must be considered.
In practice, this two-pole electric motor is suitable for mixers, pump assemblies, compressor stations, conveyor lines, centrifuges, fans, granulation lines, pressing equipment, foundry mixers, crushers, saw units, extruders, winders, drum screens and process agitators. For medium-sized companies and large factories, an important advantage is that the drive can be integrated into existing technology without unnecessary compromise in frame size or mounting arrangement.
Robust cast-iron frame and reinforced components for long service life
The robust cast-iron frame is complemented by reinforced cast-iron bearing shields and reinforced cast-iron feet, helping the motor resist vibration, dynamic loads and the harsher environment of engineering production. 6317-C3 bearings on both the DE and NDE sides support operation where accurate bearing alignment and sensible service life at higher speeds are important.
Rotor inertia of 1.495 kg/m² and a noise level of 92 dB(A) are values designers can use when planning the complete drive and assessing workplace acoustics. A packaging weight of 843 kg and packaging dimensions of 1302×727×1026 mm are important when planning warehouse handling and installation into the technology. Cable glands allow the connection to be adapted to the specific installation.
IE3 efficiency class for lower operating costs
IE3 efficiency class provides Super High Efficiency, which is particularly beneficial during longer operating cycles and high annual utilisation. An efficiency of 95.2% and a power factor of 0.9 help keep energy consumption under control, which is important for drives that run for most of the shift or continuously.
An asynchronous electric motor of this class is a natural choice for production where the relationship between energy costs and line performance is monitored. When designing the drive, a starting torque ratio of 1.8 and breakdown torque ratio of 2.3 are also useful because they simplify assessment of starting under mechanical load and resistance.
A solution backed by the manufacturer’s years of experience
The manufacturer’s years of experience are evident in how the motor fits industrial practice: from bearing selection and robust mounting to readiness for real installation conditions. This electric motor therefore suits teams that need a reliable component with a clear operating benefit for production, maintenance and energy planning.
For engineers who need performance without improvisation
The 3LC-315S-2 gives engineers and designers confidence when planning new lines or replacing older drives. The combination of output, speed, cast-iron construction and IE3 efficiency helps keep technology running reliably while reducing long-term energy demand.
If you need a motor for your project that fits industrial use without unnecessary compromises, contact us.