Three-phase electric motor: H17RL-355X3-2 450KW 400V/690V 50HZ
| Basic technical data | |
| Motor type | H17RL 355X3-2 |
| Rated power (kW) | 450 |
| Frame size (mm) | 355 |
| Number of poles | 2 |
| Rated speed (rpm) | 2978 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | D/Y |
| Rated current 400 V (A) | 762 |
| Rated current 690 V (A) | 442 |
| Efficiency at 100% load (%) | 96,1 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 1443 |
| Locked-rotor torque ratio (LRT/RLT) in % | 140 |
| Breakdown torque ratio (BDT/RLT) in % | 200 |
| Locked-rotor current ratio (LRA/RLA) in % | 700 |
| External starting inertia (kg·m²) | 147 |
| Moment of inertia GD² (kg·m²) | 14,8 |
| 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 | 2470 kg |
| Colour | RAL7030 |
| Paint finish | gloss |
| Bearings and lubrication | |
| DE/NDE bearings | 6220C3/6220C3 |
| 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 355X3-2 is a solution for operations that need high power density without unnecessary compromises in switchgear-room and machine-foundation space. This 2900 rpm electric motor from VYBO Electric is designed for applications where smooth starting, stable torque and long-term reliability under continuous load are decisive.
The robust cast-iron construction helps damp vibrations, protects active components and maintains precise mounting geometry even under higher mechanical stress. In practice, this means fewer alignment interventions, a lower risk of unplanned downtime and predictable behaviour in production lines with variable loads.
2900 rpm electric motor for stable operation of production technologies
The rated speed of 2978 rpm gives this three-phase drive characteristics suitable for pumps, compressors and drives requiring a fast response. With a rated torque of 1443 Nm, the motor can also start against more demanding mechanical resistance, which is appreciated by operators of large factories and OEM manufacturers of technological systems.
Thanks to its 450 kW output and IEC frame size 355 mm, the asynchronous electric motor offers compact installation within the machine assembly. During project design, this simplifies selection of the base frame, connection to the gearbox and integration into units with limited space.
- Rotary conveyors in metallurgical production lines.
- Centrifugal pumps in water treatment plants.
- Compressor stations in industrial facilities.
- Ventilation systems in steelworks.
- Mixing units in chemical production.
- Crushing lines in aggregate processing.
- Auxiliary rolling drives in metallurgy.
- Textile winders in continuous operations.
- Extruder drives in the plastics industry.
- Process mixers in food-processing plants.
Robust cast-iron construction for long service life in demanding operation
The heavy-duty motor body is particularly important in practice where dynamic loads are transmitted over long working cycles and the bearing arrangement is subjected to regular stress. H17RL 355X3-2 uses a solid aluminium rotor cage that supports even energy transfer and reliable operation even in industrial assemblies with frequent starts.
For maintenance technicians, the DE 6220C3 and NDE 6220C3 bearing arrangement is also important because it makes it easier to plan service intervals as part of predictive maintenance. With a weight of 2470 kg and inertia corresponding to large technological systems, it is particularly suitable for applications where rigid mounting and long-term operating stability are expected.
Efficiency selection for energy-managed projects
The option to choose the efficiency class simplifies standardisation across different projects. Customers can adapt the solution to requirements for consumption, thermal balance and total operating costs, whether modernising an existing production line or designing a new OEM system.
Efficiency of 96,1 % and a power factor of 0,89 are parameters that help both with power-supply design and with evaluating the energy balance of the complete technology. Rated current of 762 A at △ 400V and 442 A at Y 690V gives designers a sound basis for sizing starting and protective components in the switchboard.
Overview of operating values for drive design
Insulation class F together with temperature rise B increases resistance under long-term load and helps keep the motor within a reasonable thermal operating range. A starting torque ratio of 140 %, breakdown torque ratio of 200 % and starting current ratio of 700 % give service and engineering teams a solid basis for designing starting conditions in demanding systems.
An asynchronous electric motor with a squirrel-cage rotor of this class performs well in environments where resistance to sudden load changes, precise integration into production technology and predictable operation throughout the entire shift are decisive. Thousands of satisfied VYBO Electric customers use similar solutions in both modernisation projects and new production-line installations.
Contact us for a technical solution and a proposal for suitable integration into your technology.