Three-phase electric motor: H17R-355-2 400KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 355-2 |
| Rated power (kW) | 400 |
| Frame size (mm) | 355 |
| Number of poles | 2 |
| Rated speed (rpm) | 2976 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 45 |
| Efficiency at 100% load (%) | 95,5 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 1284 |
| Locked-rotor torque ratio (LRT/RLT) | 0,68 |
| Breakdown torque ratio (BDT/RLT) | 2,9 |
| Locked-rotor current ratio (LRA/RLA) | 6,7 |
| Rotor moment of inertia (kg·m²) | 3,5 |
| 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 | 3160 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6317-C3/6317-C3 |
| Lubricant | Li based, no.2 class |
H17R-355-B-2-6 provides high power density for operations that need high output in limited space. This 2900 rpm electric motor with an output of 400 kW is designed to handle long-term load in technological systems where stable operation, thermal reserve and sensible connection to existing electrical infrastructure are decisive. In practice, this means fewer compromises when designing the drive and easier integration into lines that run continuously.
Compact 6000 V electric motor for space-constrained drives
In the HV electric motor category, this model is among the solutions capable of transferring full output into a 355 mm frame without unnecessarily increasing the installation footprint. For OEM manufacturers and factory operators alike, this is practical when modernising a pumping station, conveyor node or mixing technology where every centimetre of space and every hour of downtime matters. This is why the 6000 V electric motor is suitable where power density and compact drive layout are important.
Copper rotor design and thermal reserve
Copper strip in the rotor cage reduces losses and improves heat dissipation under prolonged load, which is especially important in operations with frequent starts or fluctuating loads. Such a solution supports long service life of both bearings and winding because, with a suitable design, the motor is subjected to less thermal stress. For large factories, this is a difference reflected in more stable maintenance planning and a lower risk of unexpected interventions.
2900 rpm electric motor with voltage selection for different networks
The main advantage remains the ability to adapt the motor to a specific network without changing the drive concept. Available voltages of 3 300 V, 6 000 V, 10 000 V and 11 000 V simplify deployment in plants with different energy infrastructures. This is especially appreciated by operations that standardise spare parts and want a uniform platform for multiple production sections.
- Production lines for processing cement clinker.
- Exhaust fans in metallurgical operations.
- Process-water pumps in the chemical industry.
- Compressor stations for process air.
- Mills for crushing and grinding minerals.
- Bulk-material conveyors in port terminals.
- Rotary mixers in paper mills.
- Dewatering and pumping units in mining.
Temperature measurement and operational monitoring
The motor can be equipped 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 thermistors. Such a configuration helps in operations where precise monitoring of the thermal condition is required and where planned shutdowns are managed according to actual operating conditions. For maintenance, this is a practical basis for better diagnostics and earlier detection of deviations.
Parameters for reliable operation in large factories
Rated current of 45 A, rated torque of 1284 Nm, efficiency of 95,5 % and a power factor of 0,9 give drive designers a good basis for sizing the entire assembly. A starting ratio of 6,7 % and breakdown ratio of 2,9 % indicate that the motor is suitable for applications where the system must operate predictably even when starting under load. Insulation class F together with temperature rise B supports operation in environments where higher thermal loads are expected during long production cycles.
A weight of 3160 kg, rotor moment of inertia of 3,500 kg·m² and 6317-C3 bearings on both the DE and NDE sides confirm a robust mechanical concept for demanding industrial deployment. For large technological systems, it is also important that VYBO Electric is the largest company in its sector in Central Europe, which in practice means experience with deliveries for industrial projects with high coordination requirements. The three-phase electric motor from this series therefore fits naturally into projects where not only output but also service availability and long-term drive stability are monitored.
If you want to include this model in your project or compare suitable voltage versions, contact us.