Three-phase electric motor: H27R-4003-4 710KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4003-4 |
| Rated power (kW) | 710 |
| Frame size (mm) | 400 |
| Number of poles | 4 |
| Rated speed (rpm) | 1489 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 79,8 |
| Efficiency at 100% load (%) | 95,5 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 4554 |
| Locked-rotor torque ratio (LRT/RLT) | 0,90 |
| Breakdown torque ratio (BDT/RLT) | 2,2 |
| Locked-rotor current ratio (LRA/RLA) | 6 |
| Rotor moment of inertia (kg·m²) | 21,5 |
| Load moment of inertia (kg·m²) | 409 |
| 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 | 2870 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6326-C3/6326-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
In demanding production lines, pumping systems and technological units, the 1400 rpm electric motor H27R 4003-4-6 with an output of 710 kW provides noticeable scope for reducing operating costs while maintaining high reserve for continuous loading. This three-phase electric motor is designed for applications where drive efficiency, stability and long-term reliability are decisive.
The design with IE4 Super Premium efficiency helps limit energy losses in large drives, while the welded steel frame provides high rigidity with easier handling during transport and installation. In practice, this is especially valuable for drives that must operate under high load for long periods while keeping losses low within the operation’s energy budget.
Economical operation in industrial deployment of a 1400 rpm electric motor
High efficiency of 95,5 % and a power factor of 0,9 support efficient use of the power supply, which is important in operations where total energy costs are as significant as the output itself. Rated current of 79,8 A, rated torque of 4554 Nm and rated speed of 1489 rpm provide designers with a solid basis for designing gearboxes, couplings and starting.
- Suitable for process-water pumps.
- Used with large fans and blowers.
- Suitable for compressor assemblies.
- Used in agitators and homogenisers.
- Supports conveyor-line drives.
- Suitable for large grinding machines.
- Deployed in crushers and mills.
- Suitable for extruders.
- Fits rolling lines.
- Used in winding equipment.
- Used in test benches for OEM manufacturers.
- Supports drives for desulphurisation units.
- Deployed in cooling towers and auxiliary units.
Starting, protection and torque reserve under high load
When designing starting and the power supply, it is necessary to account for starting torque reaching 0,9 times the rated torque, breakdown torque 2,2 times the rated torque and starting current 6 times the rated current. These data are important for setting protection, sizing the transformer and selecting starting equipment within the drive technology.
For long-term operation in demanding environments, the motor is prepared for temperature and bearing monitoring, while standard thermal protection and monitoring support condition supervision during shift operation. Insulation class F, temperature rise B, DE bearing 6326-C3 and NDE bearing 6326-C3 contribute to stability under continuous loading.
Installation confidence in heavy industry
A package weight of 2870 kg, rotor inertia of 21,5 kg·m² and load inertia of 409,0 kg·m² must be considered already during design of foundations, mounting points and service access. With a 6000 V network supply, this is a solution that fits large factories and technological systems where a long life cycle and clearly managed maintenance are expected.
High-power use in integrated lines
If you need a motor for pumping stations, crushers, conveyor systems, mixing lines, fan blocks or other heavy industrial applications, the H27R 4003-4-6 model provides a technical basis for efficient and reliable operation. Contact us for a quotation, technical consultation and configuration recommendation.