Three-phase electric motor: H17RL-355X1-6 315KW 400V/690V 50HZ
| Basic technical data | |
| Motor type | H17RL 355X1-6 |
| Rated power (kW) | 315 |
| 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) | 558 |
| Rated current 690 V (A) | 324 |
| Efficiency at 100% load (%) | 96,1 |
| Power factor at 100% load | 0,85 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3039 |
| 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) | 310 |
| Moment of inertia GD² (kg·m²) | 38,4 |
| 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 | 2410 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 | |
900 rpm electric motor with high power density for industrial lines
H17RL 355X1-6 brings high power density to operations where every centimetre of installation space and every kilowatt of usable output matters. As a 900 rpm electric motor, it is designed for drives that must maintain stable operation under continuous load while fitting into a limited assembly frame. In practice, this means fewer compromises when designing drive technology and easier integration into large technological systems.
With an output of 315 kW and a speed of 990 rpm, the motor is suitable where a three-phase electric motor is expected to transfer energy smoothly to a gearbox, pump or process unit. For factory operators, it is important that the compact output helps save machine-room space without weakening reserve capacity for starts and long-term loading.
Compact output at a 355 mm shaft height to save space
A shaft height of 355 mm gives designers greater freedom when positioning the drive in technologies where service access and cable routing are just as important as the output itself. A low-voltage electric motor of this type is suitable for assemblies requiring reliable starting, reasonable space requirements and easily controlled operation. From the perspective of OEM manufacturers of large technological systems, it is also advantageous that one motor platform can cover several project variants.
Rated torque of 3039 Nm supports starting and operation under load in applications where speed fluctuations cannot be tolerated. Starting torque of 130 % and breakdown torque of 200 % help with dynamic breakaway of the load, while starting current of 650 % must be taken into account when designing the power supply and protective components. This type of three-phase electric motor is therefore suitable for projects designed around precisely controlled starting and stable operation.
Robust cast-iron construction for long service life
Robust cast-iron construction increases the motor’s mechanical resistance to vibration, shock loading and long-term operation in demanding environments. Combined with insulation class F and temperature rise B, the motor maintains stable operating behaviour even under higher working loads. For maintenance, this means fewer unplanned interventions and better predictability of service intervals.
In industry, this approach is particularly effective where the motor operates with limited possibilities for shutdown. VYBO Electric manufactures in accordance with ISO certificates, supporting repeatability of manufacturing processes and reliable deliveries for projects with fixed schedules.
400/690 V voltage selection simplifies integration into distribution systems
The option to choose the voltage simplifies connection to different types of distribution systems and starting schemes. Values of 400/690 V allow designers to adapt the motor to plant infrastructure without unnecessary changes to the existing electrical installation. For large factories, this is practical during modernisations where new equipment must be connected to an operating system with minimal impact on production.
Efficiency of 96,1 % and a power factor of 0,85 help keep operation economically reasonable even during long daily use. In drive technology with a high number of operating hours, this is a parameter reflected in the consumption and thermal loading of the complete assembly. This makes the motor suitable for operations monitoring both energy costs and process stability.
Bearings and rotor for stable operation in continuous duty
The solid aluminium rotor cage supports durability during starts and repeated loading. DE bearing 6322C3 and NDE bearing 6222C3 provide a foundation for balanced operation, which is important during long production cycles and when connected to heavier technological systems. External starting inertia of 310,000 kg·m² and a GD² moment of inertia of 38,400 kg·m² must be taken into account when designing the complete system so that the drive operates without unwanted dynamic shocks.
Industrial applications where the 900 rpm electric motor performs well
The motor is used in the following industrial applications:
- Crushing and screening aggregate in stone-processing operations.
- Drive of mixing units in cement production lines.
- Drainage pumps for mining and processing systems.
- Ventilation systems for large technological halls.
- Compressors and mixers in chemical production processes.
- Transport conveyors in metallurgical and packaging lines.
A weight of 2410 kg corresponds to a solution installed on rigidly sized foundations and mounting frames. For OEM manufacturers and plant operators alike, it is important that such a three-phase electric motor can support the process without frequent compromises between space, output and service accessibility.
VYBO Electric for projects that need reliable performance
VYBO Electric targets applications where the motor must withstand everyday industrial loading, planned shutdowns and the start-up of new production systems. H17RL 355X1-6 is therefore suitable as a foundation for projects requiring compact output, stable operation and a technical solution prepared for long-term use in demanding drive technology.
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