Three-phase electric motor: H27R-4003-2 710KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4003-2 |
| Rated power (kW) | 710 |
| Frame size (mm) | 400 |
| Number of poles | 2 |
| Rated speed (rpm) | 2984 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 79,1 |
| Efficiency at 100% load (%) | 96,4 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2272 |
| Locked-rotor torque ratio (LRT/RLT) | 0,80 |
| Breakdown torque ratio (BDT/RLT) | 2,6 |
| Locked-rotor current ratio (LRA/RLA) | 6,7 |
| Rotor moment of inertia (kg·m²) | 7,9 |
| Load moment of inertia (kg·m²) | 68 |
| 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 | 2780 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6319-C3/6319-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
In heavy industry, operation depends not only on output but also on the ability to maintain low losses under continuous load. H27R 4003-2-6 is designed as a 3000 rpm electric motor for applications where high operating reliability, economical energy consumption and stable torque of 2272 Nm at an output of 710 kW are expected.
Energy savings in large drives with a 3000 rpm electric motor
This design targets operations where long shifts, high loading and predictable service intervals are important. Efficiency of 96,4 % and a power factor of 0,9 help reduce operating costs, while rated current of 79,1 A at a 6000 V supply provides suitable conditions for the design of switchboards, protection and power-supply branches. This two-pole electric motor is therefore suitable for technological systems where output must retain reserve even under long-term loading.
Cooling and insulation increase availability in demanding environments
The closed cooling circuit with IC611 air-to-air cooling keeps the motor interior separated from the external atmosphere, which helps in dusty, humid or corrosive operations. VPI impregnation of the stator winding strengthens resistance to vibration and moisture, while insulation class F together with temperature rise B supports long-term winding stability. In large systems with sensitive shutdown regimes, this combination is especially important for drive availability.
Starting ratios support power-supply and protection design
When designing starting and protection, it is necessary to account for starting torque reaching 0,8 times the rated torque, breakdown torque 2,6 times the rated torque and starting current 6,7 times the rated current. This characteristic helps when sizing the starting system, selecting fuses and assessing the torque reserve of the driven machine. Rotor inertia of 7,9 kg·m² and load inertia of 68,0 kg·m² are important when calculating the dynamics of the complete system.
Design elements for long service life
6319-C3 bearings on both the DE and NDE sides support operation in robust industrial service and reduce the risk of premature wear under higher mechanical loading. A package weight of 2780 kg must already be considered in logistics, handling and foundation-frame design. For series projects, an advantage is that VYBO Electric supplies a solution focused on integration into large technological systems.
Typical use in industrial lines and technological systems
High-power deployment is suitable for the following applications:
- Main pump drives in power generation.
- Compressor stations for process gas.
- Fan units in cement plants.
- Mills for raw-material processing.
- Crushers in the mining industry.
- High-power conveyor systems in mines.
- Mixers for chemical plants.
- Extruders in plastics production.
- Rolling lines in metallurgy.
- Centrifuges in material processing.
- Refining units in petrochemicals.
- High-flow process fans.
- Generator and test benches for OEM manufacturers.
Stable performance for projects with demanding reliability requirements
The H27R 4003-2-6 model combines a design for 6000 V with the operating efficiency expected by operators of large factories and OEM equipment manufacturers. When designing new lines or replacing an existing motor, it can be a solution that helps limit energy losses while maintaining reserve for long-term loading. If you need to move the project forward without unnecessary delay, order this motor now while it is available for fast dispatch.