Three-phase electric motor: H27R-3554-4 500KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 3554-4 |
| Rated power (kW) | 500 |
| 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) | 57 |
| Efficiency at 100% load (%) | 95,2 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3209 |
| Locked-rotor torque ratio (LRT/RLT) | 0,90 |
| Breakdown torque ratio (BDT/RLT) | 2,2 |
| Locked-rotor current ratio (LRA/RLA) | 5,7 |
| Rotor moment of inertia (kg·m²) | 9 |
| Load moment of inertia (kg·m²) | 314 |
| 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 | 2650 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 welded steel construction gives this drive high rigidity at a sensible weight and simplifies handling in large operations where every shutdown and every kilowatt-hour are monitored. The H27R 3554-4-6 model with an output of 500 kW is designed as a 1400 rpm electric motor for demanding industrial deployment where stable operation, high operating reliability and lower energy losses during long production cycles are expected.
Energy savings under high load deliver lower operating costs
Efficiency of 95,2 % supports economical operation in high-power applications where the difference between lost and utilised energy translates directly into production costs. A power factor of 0,89 helps make good use of the power-supply system and a rated current of 57 A gives designers a basis for sizing switchboards, protective components and cable routes. This three-phase electric motor is suitable wherever long-term loading without unnecessary downtime is expected.
H27R-HD-Modular design for large technological systems
The H27R-HD-Modular series from VYBO Electric is intended for high-voltage industrial drives requiring robust mounting, easier integration into the machinery system and long service life. Insulation class F together with temperature rise B provides reserve for stable operation in demanding conditions. DE bearing 6322-C3 and NDE bearing 6322-C3 support precise shaft guidance under high inertia and continuous loading.
- A shaft height of 355 mm supports use in large frame assemblies and technological systems.
- A rated speed of 1488 rpm suits drives where stable operating speed and good torque response are required.
- Rated torque of 3209 Nm provides sufficient reserve for starting and steady operation.
- Rotor inertia of 9,0 kg·m² and load inertia of 314,0 kg·m² are important when designing system starting and braking.
- A package weight of 2650 kg corresponds to a robust design for industrial deployment.
Starting and protection aligned with torque reserve
When designing 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 5,7 times the rated current. This characteristic helps technicians correctly set protection, select a suitable starting method and assess behaviour with the high inertia of the technological assembly. In practice, operators of pumps, agitators, crushers and compressors benefit from this.
Use in operations with high availability
The high voltage of 6000 V makes this solution a suitable choice for operations requiring efficient power transmission over longer distances and minimal losses in the supply branch. Standard thermal protection and monitoring support supervision of the winding and bearings, giving the operator better control over motor condition during long cycles. Combined with modern insulation and a rigid design, this increases predictability of maintenance and shutdown planning.
- Pumps for cooling circuits in metallurgical plants.
- Fans for large extraction systems in foundries.
- Compressors for process compressed air in chemical production.
- Ore crushers in mining operations.
- Mill drives in cement plants.
- Belt conveyors for raw materials in terminals and quarries.
- Agitators in the paper industry.
- Extruders in plastic-granule production.
- Winders and unwinders in metallurgical lines.
- Refinery pumping stations for process media.
- Test benches and OEM drive systems for heavy machinery.
A solution for OEM integration and long service life
OEM manufacturers value the combination of high efficiency, a rigid frame and consistent operating reserve because it simplifies the design of their own machines and documentation for the end customer. This 4-pole electric motor is used where not only power but also control of heat, vibration and service intervals is important. With correctly designed power supply and protection, it supports reliable operation of large factories in continuous service.
Contact us for a technical solution, accessory selection and a fast quotation.