Three-phase electric motor: H27R-4502-8 630KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4502-8 |
| Rated power (kW) | 630 |
| Frame size (mm) | 450 |
| Number of poles | 8 |
| Rated speed (rpm) | 742 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 76,2 |
| Efficiency at 100% load (%) | 95,1 |
| Power factor at 100% load | 0,84 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 8108 |
| Locked-rotor torque ratio (LRT/RLT) | 0,7 |
| Breakdown torque ratio (BDT/RLT) | 1,8 |
| Locked-rotor current ratio (LRA/RLA) | 4,4 |
| Rotor moment of inertia (kg·m²) | 46 |
| Load moment of inertia (kg·m²) | 1660 |
| Accessories | |
| 6 x PT100 in windings | |
| 1 x PT100 in NDE bearing | |
| 1 x PT100 in DE bearing | |
| Anti-condensation heater 230 V | |
| 3 x PTC thermistor | |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3 (other designs on request) |
| 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 | IC611 (On request IC616, IC666) |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper rotor bars |
| Terminal box type | VYBO CB1-HV |
| Operating conditions | |
| Ambient temperature range (°C) | -20 to +40 (-30, +50, +60 optional) |
| Maximum installation altitude | up to 1000 m |
| Weight and surface finish | |
| Approximate weight | 4650 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | NU228-C3+6030-C3/NU228-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
The H27R 4502-8-6 model as a 700 rpm electric motor delivers an output of 630 kW with a 6000 V power supply and rated speed of 742 rpm, helping reduce costs in operations that require stable running with high drive utilization. This assembly is designed for long-term loading where efficiency, service reliability and reasonable operating losses across the entire system are decisive.
Welded steel frame increases rigidity at high outputs
The H27R-HD-Modular series uses a welded steel frame that provides high rigidity at a favorable weight while facilitating handling during transport and installation into technological units. Working together with this solution is IC611 air-to-air cooling, which keeps the inside of the motor separated from the surrounding environment and improves suitability for dusty or corrosively demanding operations.
Energy efficiency helps keep operating expenses under control
During long-term use in pump, compressor or conveyor-line drives, energy efficiency of 95,1 % together with a power factor of 0,84 is fully utilized. A three-phase electric motor of this class uses insulation class F and temperature rise class B, providing a robust basis for reliable operation at high output and repeated working cycles.
Starting and torque reserve for demanding loads
When designing starting and protection, starting parameters are helpful: starting torque reaches 0,7 times the rated torque, breakdown torque 1,8 times the rated torque and starting current 4,4 times the rated current. This eight-pole electric motor is therefore also suitable for applications with higher inertia where precise coordination with the switchboard, soft starter or frequency drive is important within the permitted operating strategy.
Rotor design and bearings support long service life
The rotor cage made of copper strip helps reduce electrical losses and improves resistance to thermal stress, which is beneficial in continuous industrial operation. Rotor inertia of 46,0 kg·m² and load inertia of 1660,0 kg·m² give designers important input for designing the starting mode and drive dynamics. DE bearing NU228-C3+6030-C3 and NDE bearing NU228-C3 complete the robust arrangement for high axial and radial demands.
Typical industrial applications
A high-voltage motor of this class is used in the following operations:
- Main process pumps in chemical and petrochemical plants.
- Large fans for cooling towers and extraction systems.
- Compressor stations for process gas circuits.
- Mills and crushers in the cement and mining industries.
- Conveyor lines with high inertia and long starting times.
- Drive for agitators in heavy manufacturing and raw-material processing.
- Modernized OEM technological units requiring long-term reliability.
Technical basis for OEM solutions with lower life-cycle costs
A frame size of 450 mm, package weight of 4650 kg and precisely defined mechanical interfaces facilitate integration into both new and modernized assemblies. For operators of large factories and OEM partners, H27R-HD-Modular means a combination of stability, efficient operation and straightforward project integration that supports cost savings over the entire service life of the equipment. Take advantage of the H27R 4502-8-6 model offer and obtain a solution with high reserve for demanding industrial output.