Electric motor 500 kW, 2978 rpm, 400/690 V, H17RL 355X4-2

The 2900 rpm electric motor VYBO Electric H17RL 355X4-2 with an output of 500 kW is designed for applications where compact output is decisive in production technology with limited available space. At a rated speed of 2978 rpm, it provides stable torque for heavy-duty drives while remaining suitable for integration into systems requiring precise connection to gearboxes, pumps or fan assemblies. In practice, this is an asynchronous electric motor with a squirrel-cage rotor suited to operations where high loads, long duty cycles and reliability during repeated starts are expected.

The 355 mm shaft height gives the design room for power reserve without unnecessarily increasing the installed volume. This approach is particularly important when modernising production lines where the drive technology must respect existing mounting points, service access and machine layout. Compact output here does not mean compromising operating requirements, but the ability to deliver the required torque in a solution that can be installed sensibly even in demanding technological nodes.

2900 rpm electric motor for stable operation of heavy-duty drives

The rated torque of 1603 Nm together with a starting torque ratio of 140 % supports the starting of equipment where initial resisting torque must be overcome without excessive mechanical stress. A breakdown torque ratio of 200 % provides reserve for dynamic transient conditions and helps in applications with fluctuating loads. For operators of large factories, this is especially important where every unplanned shutdown translates into lost production capacity. The 2900 rpm electric motor therefore helps keep the technological process stable even under changing operating conditions.

• Discharge conveyors for bulk materials in cement plants.
• Main mixing units in chemical production.
• Pump assemblies for high-flow process water.
• Fan units for flue-gas extraction in the energy sector.
• Stone crushers in quarrying operations.
• Roller mills in mineral processing.
• Press lines for metallurgical semi-finished products.
• Extruders in plastics processing under continuous load.
• Compressor stations for industrial air.
• Rotary drum dryers in food-processing technology.
• Briquetting press operations in recycling lines.
• Large mixing reactors in pharmaceutical production.
• Belt-conveyor drives in raw-material logistics terminals.

Robust cast-iron construction for long service life in continuous operation

The robust cast-iron construction provides high mechanical strength, mounting stability and favourable conditions for long service life in operations where equipment is exposed to vibrations, dust and temperature changes. For a motor of this size, this is essential for maintaining geometry over the long term and reducing service interventions during the production cycle. 6220C3 bearings on both the DE and NDE sides support smooth operation under higher loads and make shutdown planning easier during routine maintenance.

Insulation class F and temperature rise B provide operating margin for demanding duty without subjecting the motor to unnecessary thermal stress. Efficiency of 96,1 % translates into more sensible energy use in technological systems, while the 0,89 power factor helps with the design of supply and compensation components across the entire line. For OEM manufacturers of large technological systems, it is important that the asynchronous electric motor with a squirrel-cage rotor can be integrated as a component that improves long-term operating predictability.

Voltage selection for flexible integration into production systems

The option to choose the voltage supports installation in both new and modernised assemblies without unnecessary modifications to the power supply. From a design perspective, it is practical that the motor can be incorporated into solutions with different network conditions and different plant distribution layouts. Variants of 440 V, 500 V, 690 V and 720 V are available, making deployment easier under various company standards and in export projects. For large factories, this is an advantage when standardising spare-parts inventories and planning servicing.

Rated current of 846 A at △ 400V and 491 A at Y 690V provides designers with reference values for sizing protection and switching components. External starting inertia of 164,000 kg·m² and a GD² moment of inertia of 16,000 kg·m² are important when designing the start of units combining high mass with a requirement for controlled acceleration. This is why the H17RL Compact PRO three-phase electric motor is suitable for applications where output, mechanical load and electrical infrastructure must be coordinated within one functional system.

ISO certificates as part of VYBO Electric’s controlled manufacturing process

VYBO Electric’s manufacturing and inspection process emphasises repeatability, which is why ISO certificates are naturally included in the documentation. For industrial purchasing and technical departments, this is an important indication that the motor enters the project not as an isolated component but as part of a controlled supply chain. The weight of 2580 kg also confirms that this is a solution intended for large drives where stable mounting and a correctly sized installation base are expected.

If you need a solution for large factories or an OEM project that combines compact output, mechanical durability and the ability to adapt the power supply to a specific operation, take advantage of the H17RL 355X4-2 offer from VYBO Electric. This motor supports long-term drive stability even in technologies where every operating detail is subject to high requirements.

The 2900 rpm electric motor is ready for use wherever reliable performance in a compact solution is decisive and where long operating life is expected without compromises in integration.