Three-phase electric motor: H17R-500-4 1250KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 500-4 |
| Rated power (kW) | 1250 |
| Frame size (mm) | 500 |
| Number of poles | 4 |
| Rated speed (rpm) | 1491 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 137,5 |
| Efficiency at 100% load (%) | 96,4 |
| Power factor at 100% load | 0,91 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 8006 |
| Locked-rotor torque ratio (LRT/RLT) | 0,70 |
| Breakdown torque ratio (BDT/RLT) | 2,6 |
| Locked-rotor current ratio (LRA/RLA) | 6,2 |
| Rotor moment of inertia (kg·m²) | 33 |
| Accessories | |
| 6 x PT100 in winding | |
| 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 |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper bar |
| 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 | 6850 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | on request/on request |
| Lubricant | on request |
The robust design of the H17R-500-A-4-6 model with an output of 1250 kW delivers high power density, which is valued by any operation with limited space and high reliability requirements. This 1400 rpm electric motor is designed for large process units where smooth starting, stable pulling force and long-term loading without unnecessary downtime are decisive.
Compact 1400 rpm electric motor for space-efficient solutions
In industrial projects, it is essential that the 6000 V electric motor deliver full output without occupying disproportionately large space. This is precisely why this three-phase electric motor is suitable where compact drive installation simplifies machine-room design while also supporting the energy efficiency of the entire technological block.
The design in the 500 mm frame size is adapted to demanding operating conditions, and the copper rotor alloy helps reduce losses under long-term load. As a result, the motor handles thermal stress better during continuous operation, which is particularly important in applications with frequent peaks and variable torque demand.
Copper rotor for long service life in heavy-duty operation
For heavy industry, it is essential that the drive also withstand long operating cycles without excessive wear. The 4-pole electric motor with a rated speed of 1491 rpm provides balanced operation for process-water pumps, process-air compressors, crushers in stone-processing lines, bulk-material conveyors, roller mills and agitators in chemical production.
- Copper rotor increases durability under continuous load.
- Lower losses help keep operation more economical.
- A stable thermal regime supports longer insulation service life.
Advanced temperature monitoring for safe drive operation
Precise monitoring of both winding and bearing condition is essential for large motors operating without interruption. This motor is therefore equipped with a temperature sensing system using PT100 at key points, improving control over operation and simplifying maintenance in conditions where the technology must not stop unexpectedly.
Operators of large factories will also appreciate the available accessories, which expand monitoring and heating options according to the specific application. In practice, this helps with setting safety limits, planning service interventions and increasing reliability in critical operations. The proven manufacturer and distributor VYBO Electric supplies solutions prepared for integration into modern energy and process lines.
Power for pressure, conveying and technological units
The H17R-500-A-4-6 model is suitable for applications where high torque must be converted into stable mechanical work. It is used for large blowers, centrifuges in raw-material processing, plastic extruders, drum-dryer drives, raw-water pumping stations and agitators for the energy and chemical industries.
Solution for operations requiring reliability in continuous use
Combined with a power factor of 0,91 and efficiency of 96,4 %, this motor provides room for long-term operation with reasonable demands on both the grid and control system. If you want to incorporate a reliable drive for demanding use into your project, contact us.

