Electric motor 900 kW, 2985 rpm, 400 V / 690 V, H17RL 450X2-2 LV

In heavy-duty operation, the stability of the drive, the ability to handle long-term load, and the sensible energy balance of the entire line are decisive. In this context, the H17RL 450X2-2 belongs to the 2900-3000 rpm segment, where the efficient operation of the low-voltage drive reduces losses in real production and helps keep the process under control even with fluctuating demand.

2900-3000 rpm segment for processes with continuous load

The H17RL 450X2-2 model operates with an output of 900 kW and, with a supply of 400 V / 690 V, offers a solution for operations that need a stable engagement without unnecessary compromises in control. The rated speed of 2985 rpm places this 2-pole electric motor exactly where the drive is expected to provide a fast response, high throughput, and reliable cooperation with the supply of low-voltage infrastructure.

At this output, mechanical reserve is also important. The rated torque of 2879 Nm supports starting even with more heavily loaded technology, the Tst/Tn starting torque ratio at 110% helps during start-up with process resistance, and the Tmax/Tn breakdown torque ratio of 200% gives the operation space for short-term peaks. On the electrical sizing side, the Ist/In starting current ratio of 750% is also decisive, because it makes it easier for designers and maintenance teams to design the protection, contactors, and supply branch.

Compact solution with high output for energy-intensive lines

The 450 mm frame size makes it possible to concentrate the output into a compact unit, which is advantageous when modernising machines with limited space in the machine room or on the base plate. In practice, this means fewer compromises when replacing an older unit, better use of space, and easier integration into existing technology. From the point of view of operating costs, the 96.1% efficiency and 0.89 power factor also help, which are especially important where every kilowatt-hour is tracked in long production cycles.

VYBO Electric develops these solutions with an emphasis on its own research and development so that the combination of performance and design meets the requirements of production halls, technology suppliers, and industrial companies when replacing a drive. That is why the H17RL Compact PRO is also suitable for projects where not only the rated figure is assessed, but also the behaviour of the motor under real load, vibration, and repeated starts.

Choice of mounting design for modernisation without unnecessary modifications

The design focused on mounting variability makes integration into existing assemblies easier, because the available IM B3, B35, B5, and V1 designs allow the motor to be adapted to the specific machine arrangement. For service and project teams, this is especially important when replacing an older drive without intervention in the machine frame or the base geometry.

The standard equipment supports long-term operational reliability. The steel cooling cover improves the protection of the construction in demanding environments, the reinforced bearing arrangement including steel shielding and high-temperature grease helps keep the bearing unit in a stable mode, the terminal box in a metal design increases resistance during connection, and the reinforced bearing shields contribute to a more solid unit.

Design adapted to operations with low-voltage infrastructure

Industrial companies also appreciate that the low-voltage asynchronous electric motor of this class supports standardised solutions in substations and in technological units where reliable operation and easier maintenance coordination are required. The weight of 5300 kg, the external starting inertia of 294 kg·m2, and the moment of inertia GD2 of 24,800 kg·m2 provide an important basis for designing the mechanical connection to the working machine and for assessing start-up dynamics.

The rotor cage made of copper strip helps with load transfer and thermal behaviour during repeated starts. Insulation class F together with temperature rise B creates a suitable reserve for long cycles in demanding production, where predictable drive response is required across the entire operating range.

Energy-saving electric motors for heavy industry

The H17RL Compact PRO is intended for applications where the drive is expected to deliver not only output, but also process endurance. Electric motors of this concept belong to the Heavy Duty process performance class, so they are suitable for operations with long-term load, frequent starts, and increased demands on thermal stability. In practice, this is a solution for production plants, technology suppliers, and industrial companies that need to combine modernisation with predictable operation.

For monitoring and servicing, the motor can also be supplied with PT100 sensors for the windings and bearings, an anti-condensation heater, and a trio of PTC thermistors, which makes it easier to monitor the thermal condition during shutdowns and also during start-up after a break. Such a solution proves itself on conveyor lines, pumping stations, compressor units, mills, mixing assemblies, and fan drives with high operational load.

Industrial deployment with emphasis on reliable start-up

In environments where modernisation or drive replacement is being addressed, it is important that the new motor fits into the existing electrical installation as well as the mechanical coupling of the machine. The H17RL 450X2-2 low-voltage asynchronous electric motor therefore provides designers with a clear basis for design in heavy production, where energy savings, service availability, and overall operational reliability are compared.

VYBO Electric has stood behind the H17RL Compact PRO series for a long time, and this experience is evident in the design details and in the approach to industrial requirements. If you are preparing a replacement for an existing drive or a new deployment into demanding technology, request a quotation. Stock availability makes rapid deployment easier and shortens the time between decision and installation.

Applications for demanding industrial operations

This motor is suitable for:

• Main drives of belt conveyors in raw material production.
• Pumping units in process water management operations.
• Compressor stations in industrial sites with continuous consumption.
• Mills and crushing lines in mineral processing.
• Mixing and homogenising equipment in chemical production.
• High-performance fans and extraction units in metallurgical operations.

In these applications, stability during start-up, thermal resistance, service availability, and the motor’s ability to operate long-term in a mode that matches real production requirements are decisive. In this respect, the H17RL Compact PRO combines robust construction with parameters that make sense for both planned replacement and new projects.

Availability that you can connect without delay

If fast delivery and trouble-free integration into operation are the priority, this electric motor represents a practical solution for companies that do not want to waste time searching for compatibility. Available from stock and ready for immediate dispatch, the H17RL 450X2-2 is designed to support smooth production operation even at moments when downtime is very expensive.

For technical departments dealing with long-term reliability and energy efficiency, this is a solution with a clear operational benefit. The choice of this assembly is backed by the experience of VYBO Electric, which has long worked with the demands of heavy industry and with the need for precise sizing of drives for low-voltage networks.