Three-phase electric motor: H27R-5603-4 2800KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 5603-4 |
| Rated power (kW) | 2800 |
| Frame size (mm) | 560 |
| Number of poles | 4 |
| Rated speed (rpm) | 1494 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 307,5 |
| Efficiency at 100% load (%) | 96,3 |
| Power factor at 100% load | 0,91 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 17898 |
| Locked-rotor torque ratio (LRT/RLT) | 0,80 |
| Breakdown torque ratio (BDT/RLT) | 2,4 |
| Locked-rotor current ratio (LRA/RLA) | 6,5 |
| Rotor moment of inertia (kg·m²) | 85 |
| Load moment of inertia (kg·m²) | 1030 |
| 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 | 8300 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | NU238-C3+6040-C3/NU230-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
Economical operation of large drives starts with a correctly designed machine, and the H27R 5603-4-6 with an output of 2800 kW provides tangible scope for reducing energy demand in continuous operation. This 1400 rpm electric motor is designed for a 6000 V power supply and, at a rated speed of 1494 rpm, provides stable operation for applications where long-term efficiency and high output availability are decisive.
Energy efficiency in large process drives
High efficiency of 96,3 % and a power factor of 0,91 help reduce losses in systems that run for long hours under load. IE4 Super Premium efficiency here means less unnecessary heat in operation and a better economic result for continuous technologies, where every percentage point translates into real consumption. For the operator, it is also important that a three-phase electric motor of this output maintains stable operating conditions in large technological units.
Design for transport, installation and rigidity
The welded steel frame provides a strong structure suitable for large industrial machines while also facilitating handling during transport and installation. With this 560 mm frame size, installation into the technological line, alignment with the coupling and servicing in confined spaces are easier to manage. Package weight of 8300 kg corresponds to a robust design for demanding industrial use.
Starting, torque reserve and network protection
When designing the starting system, it is important to account for a rated current of 307,5 A and for starting torque reaching 0,8 times the rated torque, breakdown torque 2,4 times the rated torque and starting current 6,5 times the rated current. Rated torque of 17898 Nm gives the motor reserve for technological loads with variable loading, but protection and power-supply design must also respect rotor inertia of 85,0 kg·m² and load inertia of 1030,0 kg·m². Correct sizing of the switchboard, cables and protection components helps maintain stable starting as well as network protection.
Standard thermal protection and monitoring in production
The motor is prepared for long-term use in environments where reliable monitoring of winding and bearing temperatures is expected. Thermal protection and monitoring are based on PT100 sensors in the winding and bearings, PTC thermistors and 230 V anti-condensation heating, which is practical especially during seasonal shutdowns, fluctuations in ambient temperature and restarting of the technology. Insulation class F together with temperature rise B provides reserve for operation in demanding conditions.
Bearing arrangement for heavy continuous load
DE bearing NU238-C3+6040-C3 and NDE bearing NU230-C3 support stability under high radial and combined forces. Such an arrangement is suitable for operations where long motor life and low sensitivity to alignment inaccuracies are expected.
Typical industrial use
H27R 5603-4-6 is used in applications requiring high output, reliable starting and long operating continuity.
- Drives for large centrifugal pumps in power generation and water management.
- Fans for boiler units and combustion technologies.
- Main compressors in process plants.
- Crushers and mills in the cement industry.
- Belt conveyors in mining and quarries.
- Extruders in heavy polymer processing.
- Pumping stations for cooling circuits of large factories.
- Mixers and agitators in chemical production.
- Drainage systems in metallurgical operations.
- Technological lines with high inertia and continuous load.
If you need a motor for a large process that combines efficiency, robust construction and precise technical support, contact us.