Three-phase electric motor: H17RL-400X4-8 500KW 400V/690V 50HZ
| Basic technical data | |
| Motor type | H17RL 400X4-8 |
| Rated power (kW) | 500 |
| Frame size (mm) | 400 |
| Number of poles | 8 |
| Rated speed (rpm) | 742 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | D/Y |
| Rated current 400 V (A) | 934 |
| Rated current 690 V (A) | 541 |
| Efficiency at 100% load (%) | 95,6 |
| Power factor at 100% load | 0,81 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 6435 |
| Locked-rotor torque ratio (LRT/RLT) in % | 120 |
| Breakdown torque ratio (BDT/RLT) in % | 200 |
| Locked-rotor current ratio (LRA/RLA) in % | 650 |
| External starting inertia (kg·m²) | 657 |
| Moment of inertia GD² (kg·m²) | 71,8 |
| 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 | 4250 kg |
| Colour | RAL7030 |
| Paint finish | gloss |
| Bearings and lubrication | |
| DE/NDE bearings | 6326C3/6326C3 |
| 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 | |
In production lines, mills, conveyors and heavy technological systems, a reliable drive determines the smooth operation of the entire process. H17RL 400X4-8 from VYBO Electric is a solution that combines compact output with reserve capacity for demanding starts and long-term loads. This 700 rpm electric motor is designed for direct use in operations where three-phase electric motors are expected to provide stable operation, good starting characteristics and precisely sized installation space.
Robust cast-iron construction helps limit deformation under mechanical stress while supporting a long service life in environments where the motor is exposed to vibration, dust and frequent operating changes. In practice, this is appreciated by operators of large factories and OEM manufacturers that need an electric motor with a high degree of repeatability for series integration into machines and technological assemblies.
700 rpm electric motor for high-load lines
A rated speed of 742 rpm gives this asynchronous electric motor a suitable basis for applications where tractive characteristics and stable torque transmission are important. With a rated torque of 6435 Nm, the motor performs well in operations where the drive must handle long cycles without unnecessary fluctuations.
- Drives for rolling stands in metallurgical operations.
- Main drives for crushers in stone-processing plants.
- Belt conveyors for bulk materials in the mining industry.
- Vertical mixers in chemical processes.
- Screw conveyors in cement plants.
- Fans for industrial extraction in large halls.
- Pumps for high-flow water-management systems.
- Mills for grain processing in the food industry.
- Pressing lines in wood-processing production.
- Compressor systems in power-generation facilities.
- Rotary dryers in the process industry.
Robust cast-iron construction for continuous operation
The cast-iron frame design provides a solid foundation for use where mounting stability and resistance to long-term loads are decisive. Combined with insulation class F and temperature rise B, it creates an assembly prepared for the pace of industrial shifts and temperature peaks during start-up.
Thanks to 6326C3 bearings on both the DE and NDE sides, smooth running and precise rotor guidance are supported even under higher dynamic loads. The solid aluminium rotor cage complements a motor concept suitable for heavier starts and repeated starting in technological nodes.
Compact output in a 400 mm frame
The 400 mm frame size keeps the motor within a reasonable footprint for its power range, simplifying the design of new lines as well as the modernisation of existing assemblies. For OEM projects, it is important that a single electric motor can meet power requirements without unnecessarily increasing the machine frame size.
This approach simplifies the design of guarding, connection to gearboxes and service access. At 500 kW and an efficiency of 95,6 %, the motor becomes a practical component for long-term use in areas where both technical and operating costs are monitored.
Choice of efficiency class for precise drive design
In projects focused on energy balance, it is important that the configuration can support the required efficiency class according to the line specification. Availability of IE3, IE4 and IE5 solutions gives engineers room to align the drive with the plant’s internal standards and the end customer’s requirements.
A power factor of 0,81 and rated current of 934 A at △ 400 V or 541 A at Y 690 V help when designing the power supply, switchboards and switching equipment. For large technological systems, it is an advantage that H17RL Compact PRO remains easy to integrate into existing infrastructure.
Starting, monitoring and service readiness
A starting torque ratio of 120 %, breakdown torque of 200 % and starting current of 650 % create characteristics suitable for applications where reliable breakaway of the load is important. External starting inertia of 657,000 kg·m² and moment of inertia GD² 71,800 kg·m² are useful when designing drives with higher dynamics and matching them to the technological system.
If the operation requires continuous monitoring of thermal conditions, available sensing in the winding and bearings supports the service team when planning interventions. Thousands of satisfied VYBO Electric customers are proof that this approach to drives also performs well in long-term industrial use.
H17RL Compact PRO for projects that must run without downtime
H17RL Compact PRO is suitable for modernisations and new installations where a precisely designed electric motor with an emphasis on reliability and predictable servicing is required. With a weight of 4250 kg, it is important to properly prepare the seating, mounting frame and handling plan so that integration into the production technology is fast and safe.
Take advantage of the VYBO Electric offer and choose a solution that supports stable operation of your technology, simplifies drive design and maintains performance in a compact format even under long-term industrial load.
