Three-phase electric motor: H27R-4003-8 450KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4003-8 |
| Rated power (kW) | 450 |
| Frame size (mm) | 400 |
| Number of poles | 8 |
| Rated speed (rpm) | 742 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 54,6 |
| Efficiency at 100% load (%) | 94,8 |
| Power factor at 100% load | 0,84 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 5792 |
| Locked-rotor torque ratio (LRT/RLT) | 1,00 |
| Breakdown torque ratio (BDT/RLT) | 2,0 |
| Locked-rotor current ratio (LRA/RLA) | 5 |
| Rotor moment of inertia (kg·m²) | 33 |
| Load moment of inertia (kg·m²) | 1750 |
| 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 | 2840 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6326-C3/6326-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
H27R 4003-8-6 is a high-power drive for operations requiring reliable energy transmission with low losses and stable operation. This 750 rpm electric motor in the form of H27R 4003-8-6 with an output of 450 kW is intended for a 6000 V power supply and applications where economy under long-term load is monitored. Combined with efficiency of 94,8 % and a power factor of 0,84, it supports efficient energy use in drives with higher requirements for operating continuity.
Energy savings and stable cooling for continuous operation
The H27R-HD-Modular series uses IC611 air-to-air cooling, which keeps the internal cooling circuit separated from the surrounding environment and helps maintain cleanliness inside the motor even in dusty or corrosive operations. IE4 Super Premium efficiency limits energy losses in high-power applications and contributes to economical operation in continuous duty. VPI impregnation of the stator winding increases resistance to moisture, dust and vibration, which is important for long service intervals.
Design suitable for large industrial units
H27R-HD-Modular motors use a 400 mm frame size, rated current of 54,6 A, rated torque of 5792 Nm and rotor inertia of 33,0 kg·m². Starting torque reaches 1 times the rated torque, breakdown torque 2 times the rated torque and starting current 5 times the rated current, which helps when designing starting, protection and torque reserve. Insulation class F together with temperature rise class B supports reliable operation under higher thermal load.
Precise use in high-load technology
H27R 4003-8-6 is used in mills, crushers, high-flow fans, compressor stations, bulk-material conveyors, agitators, process-water pumps and rolling processes. The design with 6326-C3 bearings on both the DE and NDE sides helps maintain stability under a load with high load inertia of 1750,0 kg·m². This high-voltage electric motor is therefore suitable for drive technology in metallurgy, power generation, cement plants, the chemical industry and large water-management units.
Parameters that facilitate integration into OEM solutions
For OEM manufacturers of large technological assemblies, predictable installation, stable output and consistent service planning are important. Package weight of 2840 kg corresponds to a robust equipment class prepared for industrial use with emphasis on long service life and repeatable operating quality. If you need a motor for line modernization or a new project, order H27R 4003-8-6 today and secure fast delivery before the next planned shutdown.
Benefit for designers and operators
- Stable operation at 742 rpm supports smooth running of technological units.
- Efficiency of 94,8 % helps reduce operating losses during long-term use.
- IC611 design supports use in adverse industrial environments.
- VPI impregnation contributes to higher winding resistance in demanding applications.
- 6326-C3 bearings on both sides increase reliability under high load.
Solution prepared for long-term operation
With the H27R-HD-Modular series, VYBO Electric offers a solution combining economical operation, robust construction and parameters suitable for large industrial nodes. When planning a new installation or replacement of an existing drive, this model is prepared to meet requirements for output, cooling and long-term reliability.