Electric motor 500 kW, 742 rpm, 400/690 V, H17RL 450X1-8

The 750 rpm electric motor in the H17RL Compact PRO series is designed for drives where compact output and stable operation in a single unit are decisive. The H17RL 450X1-8 model delivers 500 kW in a configuration that operators of large factories and OEM integrators can incorporate into main technological assemblies without unnecessary space modifications. This three-phase electric motor is suitable where the drive must provide high power density while maintaining reliable operation during long production cycles.

The 450 mm shaft height is also important when designing the drive system, helping optimise installation into existing frames and base plates. Rated speed of 742 rpm and torque of 6435 Nm support operation under higher loads without unnecessary shocks in power transmission. In practice, this means lower space requirements and better use of the mechanical design. This is why this low-voltage electric motor is used in assemblies where output, precision and simpler integration into heavy technology must be combined.

750 rpm electric motor for compact output in industrial systems

Production-line operators particularly appreciate the ability to deliver high output in limited space. This is where the high power-density solution becomes evident, simplifying both machine-room design and service access. VYBO Electric builds this series on years of experience from industrial applications, where not only immediate engagement but also motor behaviour under steady load and repeated starts is monitored.

• Vacuum and process pumps for power generation and water management.
• Compressor systems in chemical production and treatment facilities.
• Conveyor lines for bulk materials in cement plants.
• Mills and crushers for the mining industry.
• Fan units for cooling and technological systems.
• Extruders for polymer and rubber processing.
• Rolling and mixing equipment in metallurgical production.

Robust cast-iron construction for long machine life

Robust cast-iron construction helps maintain mechanical resistance to vibration, loads from transmissions and long-term operation in demanding environments. In large technological systems, mounting stability is important because both running accuracy and the service life of connected components depend on it. 6328C3 bearings on both the DE and NDE sides are selected for industrial use where continuous operation and minimal downtime are priorities.

Insulation class F and temperature rise B support a safe thermal reserve under normal load, which is particularly important in operations with long production windows. Efficiency of 95,7 % and a power factor of 0,81 help keep energy requirements under control, directly affecting the economics of large lines. For integrators, it is also important that the motor behaves predictably during starting and under variable load.

Advanced lubrication and maintenance without unnecessary downtime

Advanced lubrication and maintenance in this series are based on bearing regreasing during operation, so servicing can be planned according to the machine’s actual operating regime. This is a practical solution for plants where downtime costs more than the service intervention itself. The motor is also prepared for condition monitoring through 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and 3xPTC thermistor, simplifying operating supervision and protection of the entire drive.

During starting, a starting torque ratio of 120 % and breakdown torque of 200 % are helpful, while a starting current ratio of 650 % is important when sizing the power supply and starting conditions. External starting inertia of 657,000 kg·m² and moment of inertia GD² 76,000 kg·m² provide designers with a basis for sizing the load, coupling and transmission chain. A weight of 4760 kg corresponds to the power class in which rigid seating and precise installation are expected.

Power reserves for demanding technological applications

This H17RL Compact PRO is suitable for assemblies where stable speed, high torque and long operating endurance must be maintained. A voltage of 400 V / 690 V simplifies integration into common industrial power-supply systems and supports flexibility in switchboard design. Combined with 500 kW and 6435 Nm, it gives the operator room for efficient power transmission without unnecessarily overloading the drive.

With this solution, VYBO Electric responds to the practical requirements of large factories, where not only rated output but also behaviour in real operation is assessed. If you need a drive for technology that requires precise design, an accessible service regime and space-saving installation, take advantage of the offer and choose an electric motor that supports long-term operating reliability.

• Ore processing in crushing and grinding lines.
• Lime and cement production in drying and conveying sections.
• Drives for large mixers in food-processing technological systems.
• Pumping stations with high continuous loads.
• Briquetting presses and material agglomeration.
• Recycling lines with heavy separation units.
• Process fans for power-generation and metallurgical operations.