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

Load fluctuations, long starts and repeated run-ups in continuous operation place much higher demands on the drive than standard applications. The H17RL 450X1-8 with an output of 500 kW is designed to increase reliability in manufacturing operation and maintain stable performance even in harsh conditions. For processes where the 700-750 rpm range is monitored, it offers a solution with the necessary reserve for technological units in which smooth operation and repeatability of results are decisive.

Efficiency and torque performance for the 700-750 rpm range

In this class of drive, the balance between efficiency and mechanical reserve plays a major role. A rated torque of 6435 Nm, a starting torque ratio of 120% and a pull-out torque ratio of 200% give the motor room to handle starting and variable process load. Industrial electric motors 400/690 V are often assessed by how they behave under long-term load, and an efficiency of 95.7% together with a power factor of 0.81 shows suitability for energy-sensitive operations. An Electric motor 400 V / 690 V in this class also supports the design of switchgear for low-voltage infrastructure without unnecessary operational compromises.

• A compact solution with high output makes installation into technological frames with limited space easier.
• Environmental adaptation allows the appropriate enclosure to be selected according to dust, moisture or washdown operating regimes.
• Designed for heavy industry and the Heavy Duty process performance class, it supports deployment in continuous production lines.
• The H17RL Compact PRO series is created with an emphasis on European industrial standards and the requirements of Western Europe.

Mechanical construction for heavy industry

An axis height of 450 mm and a weight of 4760 kg indicate a robust design that is suitable for tasks with higher inertia of the system. An external starting inertia of 657 kg·m² and a moment of inertia GD² of 76.0 kg·m² assist in the design of drives where starting dynamics and stability during load changes are monitored. The copper strip rotor cage improves behaviour under load, and the DE 6328C3 and NDE 6328C3 bearings are selected for long-term operational load. Insulation class F together with temperature rise B supports use in processes where temperature reserve affects the service life of the entire system.

The standard equipment includes a steel fan cover for better protection of the cooling part, reinforced bearings protected by a steel cover, high-temperature-resistant grease, a metal terminal box with a stronger design and reinforced bearing shields for higher mechanical resistance. In practice, this means a lower risk of damage during handling, more reliable cooling and more stable operating conditions in demanding production cycles. For extended monitoring regimes, equipment is available with PT100 sensors for windings and bearings, an anti-condensation heater and three PTC thermistors.

Operational benefits for production modernisation

This series is intended for manufacturing plants, technology suppliers and industrial businesses that are addressing the modernisation or replacement of a drive in a demanding line. The H17RL Compact PRO is well suited to pumping units, mixers for viscous substances, conveyor systems, compressor assemblies, rolling lines, extrusion equipment, briquetting presses, crushers, large air-capacity fans and drives for drying drums. In these tasks, the main advantage is that the motor is developed and manufactured for European industry with an emphasis on Western Europe, where long-term operational discipline and compatibility with existing systems are often required.

The H17RL 450X1-8 model therefore combines a compact solution with high output, suitable mechanical reserve and the ability to adapt to the environment according to the specific operation. VYBO Electric, as a proven manufacturer and distributor, relies on its own research and development, which is especially evident in the professional range in the long-term stability of parameters and in the design for industrial deployment. Request a quotation.

Behaviour under load and energy stability

In the 700-750 rpm range, the motor retains an operating reserve that you will appreciate during starts with higher inertia as well as during long duty cycles. Rated currents of 934 A at Delta 400V and 541 A at Y 690V should be considered already in the design of the power supply and protection so that integration into the technology is trouble-free. These values, together with an output of 500 kW, create the basis for applications where not only performance is monitored, but also operating economics and long-term operational reliability.

In connection with drive units, the rated speed of 742 rpm also proves effective, because it helps maintain the process mode without unnecessary switching between solutions with different dynamics. This characteristic is particularly practical where a three-phase motor 400/690 V is expected to provide smooth starting, precise cooperation with a gearbox or direct connection to a technological unit. For manufacturing practice, this means fewer adjustments around the drive and better planning of maintenance and spare parts.