Three-phase electric motor: H27R-4501-2 900KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4501-2 |
| Rated power (kW) | 900 |
| Frame size (mm) | 450 |
| Number of poles | 2 |
| Rated speed (rpm) | 2986 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 100 |
| Efficiency at 100% load (%) | 96,6 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2878 |
| Locked-rotor torque ratio (LRT/RLT) | 0,70 |
| Breakdown torque ratio (BDT/RLT) | 3,1 |
| Locked-rotor current ratio (LRA/RLA) | 7,1 |
| Rotor moment of inertia (kg·m²) | 12,6 |
| Load moment of inertia (kg·m²) | 59 |
| 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 | 4000 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
H27R 4501-2-6 delivers high operating efficiency wherever reliable running, lower losses and control of total costs over long production cycles are decisive. This 2900 rpm electric motor with an output of 900 kW and a voltage of 6000 V is designed for large technological systems where stable performance at 2986 rpm is expected together with scope for energy savings compared with older drives. VYBO Electric has prepared it as a solution for operations that need high output without unnecessary operating compromises.
Welded steel frame simplifies handling of large motors
The design with a welded steel frame provides high rigidity at a more favourable weight than a conventional cast-iron version, simplifying transport, installation and precise alignment of the motor in confined production areas. In combination with IC611 air-to-air cooling, the motor interior remains separated from contaminated ambient air, improving suitability for dusty or corrosive environments.
Power reserve supports starting and power-supply protection
The relationships between torque and current are also important when designing starting and protection. In this model, starting torque reaches 0,7 times the rated torque, breakdown torque 3,1 times the rated torque and starting current 7,1 times the rated current. Rated current is 100 A, rated torque 2878 Nm, efficiency 96,6 % and power factor 0,9, which helps when sizing protective components, soft starters, frequency-converter supply systems or when designing torque reserve for connected machines. A high-voltage electric motor with these characteristics is suitable wherever long-term stability and a controlled load balance are priorities.
Copper rotor bars extend service life in demanding operation
Copper rotor bars reduce electrical losses and increase the thermal resistance of the rotor, which is advantageous under long-term loading and frequent operating changes. For the operator, this means fewer thermal limitations, better reserve during load fluctuations and greater resistance to wear than with conventional aluminium solutions. This two-pole electric motor is therefore suitable for machines that require rapid and stable power transmission.
Precise bearing support reduces the risk of vibration and unplanned downtime
Both the DE and NDE bearing arrangements use type 6322-C3, supporting stability at high speed and during long-term continuous operation. Rotor inertia of 12,6 kg·m² and load inertia of 59,0 kg·m² are important when designing system acceleration and assessing mechanical loading in operation. Insulation class F and temperature rise B provide a safe basis for deployment in industrial lines where long service life and resistance to thermal cycling are expected.
Deployment in heavy production increases return on investment
H27R 4501-2-6 is suitable for high-voltage industrial drives and large high-voltage assemblies where stability, service availability and sensible lifetime costs are decisive. As a three-phase electric motor, it is used in applications with high torque requirements and a need for continuous operation in heavy industry.
- Pumps for process water and circulation circuits in the chemical industry.
- Compressors in power generation and gas processing.
- Hoists and winding units for heavy industrial operations.
- Mills and crushers in cement plants and mineral processing.
- Ventilation systems for large halls and high-flow extraction.
- Extruders, mixers and conveyor lines in heavy production.
If you need a motor for an application focused on reliability, take advantage of the offer and choose a solution that delivers high output, sensible operating efficiency and a durable design for long-term operation.
Ready for integration into OEM projects
For manufacturers of technological systems, not only the power reserve itself but also ease of integration into the project is important. This motor enables the design of a robust drive with controlled thermal behaviour, protection against contamination and a construction that supports safe installation even in larger assemblies. With this model, VYBO Electric addresses customers who require a high technical standard and long-term operating confidence.