Three-phase electric motor: H27R-3553-2 450KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 3553-2 |
| Rated power (kW) | 450 |
| Frame size (mm) | 355 |
| Number of poles | 2 |
| Rated speed (rpm) | 2980 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 51,6 |
| Efficiency at 100% load (%) | 95,8 |
| Power factor at 100% load | 0,88 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 1442 |
| Locked-rotor torque ratio (LRT/RLT) | 0,90 |
| Breakdown torque ratio (BDT/RLT) | 2,9 |
| Locked-rotor current ratio (LRA/RLA) | 6,9 |
| Rotor moment of inertia (kg·m²) | 4,3 |
| Load moment of inertia (kg·m²) | 63,9 |
| 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 | 2350 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6317-C3/6317-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
The 2900 rpm electric motor in the H27R 3553-2-6 design delivers a high output of 450 kW at 6000 V and 2980 rpm so that large operations can reduce energy losses and downtime under long-term load. For OEM manufacturers and technological systems, not only operating stability but also the overall efficiency of integration into the line is important, which is why this model supports reliable operation with high efficiency of 95,8 % and a power factor of 0,88.
Welded steel frame simplifies installation of large drives
The welded steel frame design combines high rigidity with a more manageable weight, which service teams appreciate during handling, installation and planned technology shutdowns. In the closed cooling circuit with IC611 air-to-air cooling, the internal area of the motor remains separated from external contaminants, increasing usability in dusty or corrosive environments. This approach is suitable wherever a high-voltage electric motor is expected to provide long service life and stable performance without unnecessary intervention.
- Higher mechanical rigidity of the frame supports precise seating on the base and lower vibration under continuous load.
- Closed cooling helps keep the motor interior clean even in environments with dust, aerosols or chemical exposure.
- The solution is suitable for large technological assemblies where reliable operation and limited service intervention are monitored.
Operating parameters support power-supply and protection design
Start-up values are also essential when designing starting, protection and power-supply sizing. Starting torque reaches 0,9 times the rated torque, breakdown torque 2,9 times the rated torque and starting current 6,9 times the rated current, which together with the rated current of 51,6 A helps precisely design the starting equipment and downstream protective components. In combination with rated torque of 1442 Nm and rotor inertia of 4,3 kg·m², the motor performs well in systems requiring a higher torque reserve.
Bearing and rotating-system selection extends service intervals
The DE 6317-C3 bearing and the NDE 6317-C3 bearing are both sized for robust operation in industrial applications with high mechanical loading. Load inertia of 63,9 kg·m² allows the motor to be considered for assemblies with more significant dynamic loading, for example during starts under load or stable running with variable process resistance. Insulation class F together with temperature rise B provides reserve for long-term deployment in demanding operating cycles.
Deployment in energy-intensive industrial systems
This 2-pole electric motor is well suited to applications where high speed, stable torque output and smooth integration into large technology are decisive. In practice, it is used to drive compressor stations, feed-water pumps, blowers for power-generation units, mixers in the chemical industry, crushers, rolling lines, fans, centrifuges, extrusion systems, sludge-management systems, heavily loaded conveyor belts, and technological systems for cement plants or mining raw-material processing. It is also suitable in these assemblies as a three-phase electric motor because it allows straightforward integration into the industrial power supply and downstream control.
For operations looking for a reliable HV electric motors segment with high operating confidence, H27R 3553-2-6 is a solution focused on efficiency, robustness and service availability. VYBO Electric supplies a platform prepared for large factories and OEM integrators that need to control costs throughout the equipment life cycle. Take advantage of the offer for an electric motor that supports stable output, easier installation and lower operating losses in demanding industrial deployment.
Technical data supporting final integration
When designing the assembly, the precisely specified package weight of 2350 kg also helps plan logistics, lifting points and installation in the hall. The combination of power, current, speed and torque parameters gives designers the support they need when selecting drives, starters, protective relays and mechanical connections to the driven machine. From the perspective of maintenance and long-term operation, this is a motor prepared for deployment wherever reliability directly translates into production profitability.