Three-phase electric motor: H17R-315-8 185KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 315-8 |
| Rated power (kW) | 185 |
| Frame size (mm) | 315 |
| Number of poles | 8 |
| Rated speed (rpm) | 738 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 24,9 |
| Efficiency at 100% load (%) | 94,4 |
| Power factor at 100% load | 0,76 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2394 |
| Locked-rotor torque ratio (LRT/RLT) | 1,1 |
| Breakdown torque ratio (BDT/RLT) | 2,1 |
| Locked-rotor current ratio (LRA/RLA) | 5,1 |
| Rotor moment of inertia (kg·m²) | 6 |
| 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 | 3200 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Li based, no.2 class |
A 700 rpm electric motor in the high-voltage class delivers compact power for demanding drives, making it suitable for lines with long operating times and high loads. The H17R 315-C-8-6 model with an output of 185 kW is designed for mechanical engineers and designers who need stable operation, sensible dimensions and reserve capacity for work in an industrial environment.
700 rpm electric motor for drives with high operating reserve
This three-phase electric motor operates as a high-voltage electric motor for applications where smooth engagement, thermal resistance and long-term output stability are decisive. The copper rotor, made from copper with an appropriate alloy composition, limits losses in the rotor section while helping keep the temperature regime within limits favourable to the service life of both insulation and bearings.
In operations with variable load, IE4 Super Premium efficiency also has an effect. Higher efficiency supports lower energy demand in routine and continuous operation and makes particular sense where the motor runs for a large part of the day. The design with a shaft height of 315 mm also simplifies integration into existing frames and base plates without unnecessary intervention in the technology.
Copper rotor and efficiency for long operation
In large factories, motor behaviour over time is assessed more than just the nominal nameplate value. An 8-pole electric motor is suitable for drives requiring lower speed and high torque with stable operation. The rated speed of 738 rpm supports use in transmissions and technological nodes where maintaining control over mechanical stress on shafts and connected equipment is important.
Optional voltage allows the motor to be adapted to the grid system without unnecessary switchgear modification. Versions for 3 300 V, 6 000 V, 10 000 V and 11 000 V are available, simplifying design for large-operation projects and modernization of older technologies. With this type of solution, HV electric motors are particularly practical wherever long cable runs and higher installed power are expected.
Bearing arrangement and monitoring for reliable operation
The bearing concept uses DE bearing 6322-C3 and NDE bearing 6322-C3, preparing the motor for applications with high mechanical loads and regular starting. A weight of 3200 kg also reflects the robust frame construction and the fact that the motor is intended for use in technologically demanding units.
- The copper rotor cage improves thermal behaviour under prolonged load.
- Insulation class F supports operation in thermally demanding environments.
- Temperature rise B helps keep operation within a sensible safety reserve.
- Rotor moment of inertia of 6,0 kg·m² is suitable for drives with smooth starting.
- Rated torque of 2394 Nm provides reserve capacity for technological loads.
- Rated current of 24,9 A simplifies protection and power-supply design.
Overview of applications in industrial practice
In practice, this motor is used in dewatering pumps, blowers for incinerators, aggregate crushers, raw-material mixers, bagging lines, rolling stands, conveyor systems, granulation lines, compressor stations, roller mills, mixing reactors, metallurgical fans and belt pumps. In each of these nodes, a stable torque profile and the ability to operate through long cycles without unnecessary downtime are valued.
VYBO Electric is among the largest companies in its sector in Central Europe, which is reflected in project experience and consistent manufacture of industrial drives. If you need a motor for line modernization or a new technological unit, take advantage of a solution that combines efficiency, durability and design reserve for demanding use.
Voltage selection option for design without compromises
In engineering practice, compatibility with the existing grid and planned starting method is often decisive. This motor therefore offers voltage variants that simplify use in new lines and refurbishments where operational continuity must be maintained. A 700 rpm electric motor designed this way helps reduce the number of modifications required in the power-supply and control sections of the machine.
For manufacturing companies, monitoring the thermal condition of windings and bearings is also important. The motor can therefore be supplemented with 6 x PT100 in the winding, 1 x PT100 in the NDE bearing, 1 x PT100 in the DE bearing, an anti-condensation heater and 3 x PTC thermistor, simplifying diagnostics during long-term operation and shutdowns in winter conditions.
If drive design calls for robust mechanics, energy efficiency and easier integration into an industrial network, H17R 315-C-8-6 provides a solution for demanding operations. Thanks to the combination of efficiency, a copper rotor and voltage selection, it is suitable for projects where the technology must operate steadily and for a long time.

