Three-phase electric motor: H17RL-355X2-4 450KW 400V/690V 50HZ
| Basic technical data | |
| Motor type | H17RL 355X2-4 |
| Rated power (kW) | 450 |
| Frame size (mm) | 355 |
| Number of poles | 4 |
| Rated speed (rpm) | 1485 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | D/Y |
| Rated current 400 V (A) | 778 |
| Rated current 690 V (A) | 451 |
| Efficiency at 100% load (%) | 96,3 |
| Power factor at 100% load | 0,87 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2894 |
| 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) | 295 |
| Moment of inertia GD² (kg·m²) | 28,4 |
| 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 | 2580 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 | |
1500 rpm electric motor for continuous lines and heavy-duty units
In metallurgical operations, pumping technology, crushing lines and mixing-unit drives, not only output matters but also how efficiently it is transferred into day-to-day production. H17RL 355X2-4 delivers energy efficiency that helps keep operation under control even under long periods of load, while meeting the requirements of companies where a 1500 rpm electric motor is part of continuous operation. The design incorporates high power density, so while retaining a compact solution it still leaves room for easier integration into technological assemblies.
Compact output in a frame that saves space in the technology
Operators of large factories often face limited installation space when modernising existing drives. This is where compact output becomes important, allowing the electric motor to be installed in assemblies where a larger unit would unnecessarily complicate the design of the frame, foundations or service access. An asynchronous electric motor with these characteristics is suitable for conveyor, dryer and fan drives as well as energy-intensive auxiliary technologies where stable operation without unnecessary downtime is important.
Cast-iron frame for stability in industrial use
Robust cast-iron construction is important where equipment operates under vibration, shock loads and long-term thermal stress. The cast-iron body contributes to high mechanical resistance and maintains motor geometry even in demanding applications, which OEM manufacturers of large technological systems appreciate when designing assemblies with higher rigidity requirements. In practice, this supports long service life and more precise alignment of the drive with downstream transmissions, couplings or pumps.
Operating reliability thanks to bearings and maintenance
In large drives, the service regime has a direct impact on production-line availability. The H17RL 355X2-4 uses bearing relubrication during operation, allowing maintenance to be planned more flexibly and without unnecessary interruptions to the technology. DE bearing 6322C3 and NDE bearing 6222C3 are selected with long-term loading in mind, which helps in applications with more demanding starts as well as stable continuous operation. In environments with high availability requirements, this means fewer shutdowns and better predictability of service intervals.
Parameters that support uncompromised drive design
For designers and technical departments, data that simplifies sizing of the complete assembly is important. Rated torque of 2894 Nm supports starting as well as loaded starts, a Tst/Tn starting torque ratio of 140 % helps when starting technology against resistance, and a Tmax/Tn breakdown torque ratio of 200 % provides reserve for short-term loading. Rated current △ 400V 778 A and rated current Y 690V 451 A allow the power supply to be adapted to the specific electrical system without unnecessary compromises in switchboard design.
Efficiency and operating costs over the long term
Efficiency of 96,3 % and a power factor of 0,87 help keep operating losses at a level that matters in continuous operation. This is especially appreciated in manufacturing plants where the electric motor is used in repeated cycles throughout entire shifts. Insulation class F and temperature rise B support reliable operation in thermally demanding environments, while the solid aluminium rotor cage helps transfer mechanical load in continuously loaded applications.
Use in technological systems where availability matters
The solution is suitable for various industrial applications, especially where stable operation and precise coordination with other parts of the production line are expected.
- Bulk-material conveyor in a stone-processing line.
- Screw conveyor in a cement plant.
- Main mixer drive in a chemical operation.
- Extraction fan in a large hall.
- Process pump in a water pumping station.
- Stone crusher in quarrying technology.
- Vibrating screen in an aggregate sorting plant.
- Granulation press in biomass processing.
- Roller conveyor in a raw-material warehouse.
- Aeration unit in a wastewater treatment plant.
- Winding machine in paper production.
- Drive unit of a briquetting line in a wood-processing plant.
VYBO Electric as a dependable choice for large industrial assemblies
Years of experience at VYBO Electric are particularly evident in this segment because the design reflects the reality of heavy-duty operation and service interventions in an actual plant. For models intended to become part of extensive technological systems, not only the delivery of the motor itself but also the predictability of its behaviour after installation is important. H17RL 355X2-4 is ready for projects requiring compact output, stable operation and a technical solution that can be sensibly integrated into existing infrastructure.
For subsequent use in new and modernised production lines, this electric motor is ready for immediate integration into the project. Order it in good time to keep the installation schedule on track without unnecessary downtime.
