Three-phase electric motor: H17RL-355X2-6 355KW 400V/690V 50HZ
| Basic technical data | |
| Motor type | H17RL 355X2-6 |
| Rated power (kW) | 355 |
| Frame size (mm) | 355 |
| Number of poles | 6 |
| Rated speed (rpm) | 990 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | D/Y |
| Rated current 400 V (A) | 629 |
| Rated current 690 V (A) | 365 |
| Efficiency at 100% load (%) | 96,1 |
| Power factor at 100% load | 0,85 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3424 |
| Locked-rotor torque ratio (LRT/RLT) in % | 130 |
| Breakdown torque ratio (BDT/RLT) in % | 200 |
| Locked-rotor current ratio (LRA/RLA) in % | 650 |
| External starting inertia (kg·m²) | 349 |
| Moment of inertia GD² (kg·m²) | 41,6 |
| 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 or soft starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | massive aluminium squirrel cage |
| Terminal box type | VYBO CB2-LV |
| 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 | gloss |
| Bearings and lubrication | |
| DE/NDE bearings | 6322C3/6222C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 6 x PT100 in windings | |
| 1 x PT100 in NDE bearing | |
| 1 x PT100 in DE bearing | |
| Space Heater 230V | |
| 3 x PTC in windings | |
H17RL 355X2-6 is designed for operations where one 6-pole electric motor must deliver high torque without unnecessary space requirements. In practice, this means compact output for production lines running continuously and requiring stable operation even under long-term load.
6-pole electric motor for stable operation of large technological systems
This low-voltage electric motor operates with an output of 355 kW and a speed of 990 rpm, making it well suited to drives where shaft force and smooth energy transfer are important. For large factories and OEM manufacturers of technological systems, it is decisive that the motor provides reserve capacity for starting while keeping operation under control.
VYBO Electric supplies this model as part of a range intended for installation in demanding assemblies, pumping stations and drives where the electric motor is exposed to long duty cycles.
Robust cast-iron construction for long service life
Robust cast-iron construction helps maintain mechanical rigidity under vibration, load fluctuations and repeated starts. For production technology, this is particularly important where mounting stability, bearing protection and minimal downtime are monitored.
- The solid body supports durability under continuous industrial load.
- The construction limits unwanted deflection during torque transmission.
- The solution is suitable for operations requiring long service life without frequent maintenance interventions.
Energy efficiency at 355 kW
With a drive of this size, energy efficiency translates into lower losses during real operation. Rated current of 629 A at △ 400V and 365 A at Y 690V provides the operator with a clear framework for designing the switchboard, starting system and motor protection.
Efficiency of 96,1 % and a power factor of 0,85 support economical operation, especially in applications where long daily operating hours are decisive. Temperature rise B together with insulation class F helps keep operation within a safe thermal range.
Choice of frequency for export and OEM projects
A 60 Hz solution is also available for projects requiring different network standards, simplifying deployment in export assemblies and equipment for multiple markets. This flexibility shortens drive-design time and simplifies standardisation of a single platform.
Applications where compact output is decisive
The H17RL 355X2-6 model can be used in granulation mills, heavily loaded conveyors, mixers for bulk materials, process-water pumps, extraction fan units, compressor assemblies and extrusion lines for the plastics industry.
In these operations, you will appreciate not only the compact output but also starting characteristics with Tst/Tn 130 % and Tmax/Tn 200 %, which help overcome the machine’s load torque. The Ist/In starting characteristic of 650 % is also important for drive design and supports correct selection of starting equipment.
Bearings and rotor prepared for long duty cycles
The solid aluminium rotor cage supports mechanical durability during repeated starts and more dynamic loading. DE bearing 6322C3 and NDE bearing 6222C3 are selected so that the motor can handle long-term industrial use with an emphasis on stable operation.
With a weight of 2650 kg, external starting inertia of 349,000 kg·m² and a GD² moment of inertia of 41,600 kg·m², this is a solution that fits robust constructions of large production lines. Proven manufacturer and distributor VYBO Electric also provides confidence when planning deliveries and repeat project purchases.
Take advantage of the offer for the H17RL 355X2-6 model and get a drive that combines robust cast-iron construction, energy efficiency and reserve capacity for demanding industrial operation.