Three-phase electric motor: H27R-3552-4 400KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 3552-4 |
| Rated power (kW) | 400 |
| Frame size (mm) | 355 |
| Number of poles | 4 |
| Rated speed (rpm) | 1488 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 45,7 |
| Efficiency at 100% load (%) | 95 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2567 |
| Locked-rotor torque ratio (LRT/RLT) | 0,90 |
| Breakdown torque ratio (BDT/RLT) | 2,4 |
| Locked-rotor current ratio (LRA/RLA) | 6,2 |
| Rotor moment of inertia (kg·m²) | 7,6 |
| Load moment of inertia (kg·m²) | 247 |
| 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 | 2550 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
The H27R 3552-4-6 electric motor with an output of 400 kW is designed for operations where stable speed, long service life and lower operating costs over the entire drive life are decisive. This high-voltage electric motor with a 6000 V supply and rated speed of 1488 rpm belongs to a class that fits applications requiring reliable performance and efficient use of energy.
The design with a welded steel frame provides high rigidity at a favourable weight and simplifies handling during transport and installation of large units. IC611 air-to-air cooling supports a closed cooling circuit, so the motor interior remains protected from dust and operation is more suitable even for corrosive environments. For industrial systems, this is a solution that helps reduce service interventions and limit unplanned downtime.
1400 rpm electric motor for stable operation of large technologies
Within drive units for heavy industry, this motor offers efficiency of 95 % and a power factor of 0,89, helping optimise electricity consumption under long-term loading. Rotor inertia of 7,6 kg·m² and load inertia of 247,0 kg·m² are important when designing starting, braking and sizing couplings, gearboxes and protective components.
Starting data for correctly designed power supply
When designing starting and protective components, it is important to account for starting torque reaching 0,9 times the rated torque, breakdown torque 2,4 times the rated torque and starting current 6,2 times the rated current. Rated current of 45,7 A and rated torque of 2567 Nm give designers a solid basis for coordination with drives, transformers and protection in operation of a 4-pole electric motor.
- A package weight of 2550 kg supports transport planning for deliveries of larger systems.
- Insulation class F and temperature rise B contribute to stable operation under higher loading.
- DE bearing 6322-C3 and NDE bearing 6322-C3 support service-strategy planning.
- The rotor cage made of copper strip supports lower losses and longer thermal resistance under continuous loading.
Deployment in heavy industrial operation
The H27R 3552-4-6 model is suitable for cement mills, compressor stations, pumping units, fan blocks, conveyor lines, crushers, mixing units, metallurgical technologies and auxiliary energy drives. In these applications, the combination of mechanical robustness, efficient cooling and power reserve is important to OEM manufacturers and operators of large factories.
Benefits for long-term return on investment
When choosing a motor for high loading, not only output but also service availability, easier integration into existing technology and the ability to maintain operation in demanding environments are decisive. VYBO Electric supplies a solution that supports long-term reliability, reduces maintenance requirements and helps keep costs under control throughout the equipment life.
Support for project and purchasing teams
For technical departments, the availability of data for selection, comparison and connection to a higher-level control system is also important. The customer therefore receives a motor suitable for drive technology with high requirements for stability, safety and operating continuity.
Order a solution prepared for demanding operation
If you need a motor for long-term industrial deployment, take advantage of the offer for H27R 3552-4-6 and obtain a solution with high efficiency, durable construction and a favourable impact on operating costs.