Three-phase electric motor: 3LC-315S-4, 110 kW
| Basic technical data | |
| Motor type | 3LC-315S-4 |
| Rated power (kW) | 110 |
| Frame size (mm) | 315 |
| Number of poles | 4 |
| Rated speed (rpm) | 1485 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 187 |
| Rated current 690 V (A) | 108,41 |
| Efficiency at 100% load (%) | 95,4 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 2 |
| Breakdown torque ratio (BDT/RLT) | 2,2 |
| Locked-rotor current ratio (LRA/RLA) | 7 |
| Rotor moment of inertia (kg·m²) | 3,626 |
| 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) | 891 |
| Bearings and lubrication | |
| DE/NDE bearings | 6319-C3/6319-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
A robust cast-iron frame gives the 3LC-315S-4 model savings in service practice and value in demanding operations where a four-pole electric motor is expected to deliver stable performance, durability and reasonable operating costs.
This asynchronous electric motor with a power output of 110 kW and a rated speed of 1485 rpm is designed for medium-sized businesses and large factories that need long-term operating reliability in higher-load drives. The cast-iron housing, reinforced bearing shields and robust feet help maintain precise mounting geometry even under vibration, which is appreciated by engineers when designing pumping stations, conveyor lines and technological units.
3LC PRO four-pole electric motor for smooth power transmission
A four-pole electric motor is suitable wherever the drive must operate with a balanced relationship between torque and speed without unnecessary variation during operation. Rated current reaches 187 A at △ 400V and 108.41 A at Y 690V, simplifying switchgear design and protection sizing in three-phase systems. A starting torque ratio of 2 and breakdown torque ratio of 2.2 support starting even under medium-heavy loads.
IE3 energy efficiency in everyday operation
IE3 efficiency class improves energy efficiency during long operating cycles, where differences in losses become visible in annual energy consumption. A power factor of 0.89 assists with power-supply design, while efficiency of 95.4% helps the electric motor operate economically even under stable load. In practice, this provides a stronger basis for conveyors, agitators and technological units with long operating times.
Cast-iron construction for vibration, dust and continuous shifts
A robust cast-iron frame is decisive on lines where the motor is exposed to impact loads, temperature changes and dust. Cable glands 2-M63X1.5 allow practical routing of the power supply, while DE bearing 6319-C3 and NDE bearing 6319-C3 are selected for stable rotor support. Rotor inertia of 3.626 kg/m² supports smooth starting even in applications that require controlled acceleration without unnecessary mechanical peaks.
Selected industrial applications for a 110 kW drive
In practice, it is used in cooling-water pumps, centrifugal fans, screw compressors, belt conveyors, process-tank agitators, aggregate crushers, briquetting presses, plastics extruders, roller mills, raw-material mixers, wood-processing lines and traction winding machines. Each of these operations benefits from a construction capable of handling long duty cycles and repeated starts.
Quick orientation when designing or replacing a drive
A packaged weight of 891 kg and package dimensions of 1302*727*1026 mm simplify logistics planning for on-site installation as well as spare-part storage. A noise level of 88 dB(A) must be considered when designing the technological area, particularly where the motor forms part of an enclosed line or machine assembly. The 3LC-315S-4 model draws on the manufacturer’s years of experience, which is an important factor when choosing a replacement or new drive in high-load operating environments.
Contact us for technical verification of the suitability of the 3LC-315S-4 model for your operation.