Electric motor 400 kW, 1485 rpm, 400 V / 690 V, H17RL 355X1-4 LV

A common solution in this power class often reaches its limits under long-term load, which is why the H17RL 355X1-4 is designed for higher reliability in production operation and for the 1400-1500 rpm range. In practice, this is a drive that can handle starts, load fluctuations and the requirements of smooth integration into existing lines more effectively. For operations dealing with modernisation or drive replacement, predictable running, easier sizing and compatibility with low-voltage infrastructure are particularly important.

The construction is based on a strong cast-iron frame, which contributes to the stability of the assembly during continuous operation. In the H17RL Compact PRO series, provision is also made for adaptation according to the environment, so IP56, IP65, IP66 and IP67 protection ratings are available according to application requirements. This solution proves itself where an electric motor for universal industrial applications must operate reliably in a damp, dusty or technologically demanding space.

Electric motor 400 V / 690 V in this version delivers 400 kW at a rated speed of 1485 rpm and a rated torque of 2572 Nm. At start-up it offers a starting torque ratio of 140%, a pull-out torque ratio of 200% and a starting current ratio of 700%, which is important for drives in demanding applications. An efficiency of 96.3% helps reduce operating losses and a power factor of 0.87 supports more economical integration into 400 V / 690 V supply systems. For the design of the complete drive, the mechanical data are also decisive, especially the external starting inertia of 262 kg·m2 and the moment of inertia GD2 of 27.2 kg·m2.

A three-phase 400/690 V motor designed in this way is suitable for heavy industry, where Heavy Duty process performance and long-term resistance to operational stress are required. VYBO Electric develops and manufactures this range specifically for European industry, especially for Western Europe, which is noticeable both in project design and in service interventions. Customers also appreciate the fact that sales worldwide are part of the brand’s standard business model, not a one-off initiative.

The 1400-1500 rpm range for continuous industrial performance

For production plants, technology suppliers and industrial businesses, it is not only the rated value that matters, but especially the motor’s behaviour under real load. The 1400-1500 rpm range helps in the design of drives for pumps, conveyors and mixing lines where stability is required without unnecessary fluctuations. In this power class, the H17RL Compact PRO is also suitable for modernisations where the existing technology must be retained while increasing the drive reserve.

• Power connection in bulk material processing lines.
• Main drives of centrifugal pumps in process operations.
• Reversible conveyor systems in packaging and logistics halls.
• Mixing units in the chemical and food industries.
• Rolling and feed mechanisms in heavy engineering.
• Ventilation units for energy and processing technologies.

Mechanical durability and service features for long operation

The standard equipment includes a steel fan cover, which improves the protection of the cooling section, reinforced bearings protected by a steel cover, high-temperature-resistant grease, a metal terminal box with a more robust design and reinforced bearing shields for greater mechanical durability. The DE 6322C3 and NDE 6222C3 bearing arrangement supports rotor stability under longer load, and the massive aluminium rotor cage increases the robustness of the entire design. For service technicians, the weight of 2420 kg is also important, reflecting the robust design approach at this power level.

The motor operates with insulation class F and temperature rise B, which is a practical basis for operations with higher thermal demands. Combined with a high-quality winding design, it also proves itself where long operating cycles and minimal downtime are decisive. If the project requires extended diagnostics and monitoring, the available accessories include 6x PT100 in the winding, PT100 in the DE and NDE bearings, anti-condensation heating and 3x PTC.

Industrial deployment with adaptation according to environment

The H17RL Compact PRO is suitable for plants where long-term availability of a replacement drive and precise service planning are important. The 355 mm frame size provides space for robust mounting while also allowing sensible integration into existing technological systems. With the correct choice of protection rating according to the environment, the motor performs well in segments where cleanliness, humidity, dust or direct contact with process media are decisive.

• Pumping stations for industrial water and recirculation.
• Extruders in plastics production.
• Grinding and crushing lines in mineral processing.
• Compressor stations in energy operations.
• Mixing and homogenising units in chemical production.
• Heavy feeders and hoppers in metallurgical operations.

If you are dealing with a replacement or a new project, send us an enquiry and we will prepare a recommendation according to the load regime, supply and operating environment.

H17RL Compact PRO for European industry and global service

This series is ready for projects where technical discipline is combined with an emphasis on long-term operational certainty. Thanks to the use of premium materials and in-house development by VYBO Electric, the motor is suitable for environments where stable operation, service predictability and easier shutdown planning are expected. If you need to address a motor drive as part of a modernisation or a new technological system, the H17RL Compact PRO offers a design ready for a professional industrial range without compromise in operational practice.